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Energy saving and pollution prevention standards for coal-fired boilers of the Ministry of Energy
I. Guiding ideology and action objectives
(1) guiding ideology. Fully implement the energy strategic policy of "saving, cleaning and safety", implement stricter energy efficiency and environmental protection standards, speed up the upgrading of coal-fired power generation, strive to achieve "three reductions" in coal consumption, pollution discharge and coal's proportion in energy consumption, and "three improvements" in safe operation quality, technical equipment level and coal's proportion in coal consumption, so as to create an efficient, clean and sustainable "upgraded version" of coal-fired power industry for national energy development and strategic security.
(2) Action objectives. The average coal consumption of newly-built coal-fired generating units in China is less than 300g standard coal/kWh (hereinafter referred to as "gram/kWh"); The emission concentration of air pollutants of newly-built coal-fired generating units in the eastern region has basically reached the emission limit of gas turbine units, while the newly-built units in the central region have approached or reached the emission limit of gas turbine units in principle, and the newly-built units in the western region are encouraged to approach or reach the emission limit of gas turbine units.
By 2020, the average coal consumption of in-service coal-fired generating units will be less than 3 10g/kWh, and the average coal consumption of in-service units of 600,000 kilowatts and above (except air-cooled units) will be less than 300g/kWh. The public coal-fired generating units of 300,000 kilowatts and above in service in the eastern region, the self-provided coal-fired generating units of 65,438+10,000 kilowatts and other qualified coal-fired generating units have basically reached the emission limit of gas turbine units after transformation.
Under the premise of implementing stricter standards for energy efficiency and environmental protection, by 2020, we will strive to reduce the proportion of coal in primary energy consumption to below 62%, and increase the proportion of electric coal in coal consumption to above 60%.
The second is to strengthen the access control of new units.
(3) Strict energy efficiency access threshold. New coal-fired power generation projects (including projects that have been included in the national thermal power construction plan and have the conditions to change the unit selection) adopt in principle ultra-supercritical units of 600,000 kilowatts and above, and the design coal consumption of wet-cooling and air-cooling units of 1 10,000 kilowatts is not higher than 282 and 299 grams/kwh respectively, and the wet-cooling and air-cooling units of 600,000 kilowatts are not higher than 285 and 302 grams/kwh respectively.
In principle, supercritical parameters shall be adopted for heating units of 300,000 kilowatts and above and circulating fluidized bed low calorific value coal generating units of 300,000 kilowatts and above. For circulating fluidized bed low calorific value coal-fired generating units, the coal consumption of 300,000 kW wet-cooled air-cooled generating units is not higher than 365,438+00 and 327 g/kWh respectively, and that of 600,000 kW wet-cooled air-cooled generating units is not higher than 303 and 320 g/kWh respectively.
(4) Strictly control the emission of air pollutants. Newly-built coal-fired generating units (including units under construction and included in the national thermal power construction plan) should simultaneously build advanced and efficient desulfurization, denitrification and dust removal facilities, and no flue gas bypass channel should be set. In the eastern region (Liaoning, Beijing, Tianjin, Hebei, Shandong, Shanghai, Jiangsu, Zhejiang, Fujian, Guangdong, Hainan, etc. 1 1 provinces and cities), the emission concentration of air pollutants of newly-built coal-fired generator sets basically reaches the emission limit of gas turbine sets (that is, under the condition that the benchmark oxygen content is 6%, the emission concentrations of soot, sulfur dioxide and nitrogen oxides are not higher than 6544 respectively. In principle, new units in central China (Heilongjiang, Jilin, Shanxi, Anhui, Hubei, Hunan, Henan, Jiangxi and other eight provinces) are close to or reach the gas turbine emission limit, and new units in western China are encouraged to approach or reach the gas turbine emission limit. Support simultaneous joint and coordinated removal of air pollutants to reduce emissions of pollutants such as sulfur trioxide, mercury and arsenic.
(5) Optimize the regional coal-electricity distribution. Layout new coal-fired power generation projects in strict accordance with energy efficiency and environmental protection access standards. New projects in Beijing-Tianjin-Hebei, Yangtze River Delta, Pearl River Delta and other regions are prohibited from supporting the construction of their own coal-fired power stations. Coal consumption projects should be replaced by coal reduction. In addition to cogeneration, it is forbidden to approve new coal-fired power generation projects; If the total installed capacity of several existing coal-fired units reaches more than 300,000 kilowatts, they can be built into large-capacity coal-fired units according to the principle of coal equivalent substitution.
Overall planning of resources and environmental factors, strict implementation of energy-saving, water-saving and environmental protection measures, scientific promotion of Ximeng, Erdos, Jinbei, Jinzhong, Jin Dong, northern Shaanxi, Ningdong, Hami, Zhundong and other large-scale coal-fired power bases in the western region, and continued to expand the scale of power transmission from west to east. Moderately build cross power stations and load centers to support power supply in central and other regions.
(6) Actively develop cogeneration. Adhere to the principle of "determining electricity by heat", strictly implement the heat load, scientifically formulate the cogeneration plan, build efficient coal-fired thermoelectric units, simultaneously improve the supporting heating pipe network, and replace and eliminate small coal-fired boilers scattered within the central heating range. By 2020, the installed capacity of coal-fired thermal power units will account for 28% of the total installed capacity of coal-fired power.
In large and medium-sized cities that meet the requirements, moderately build large thermal power units and encourage the construction of back-pressure thermal power units; In small and medium-sized cities and industrial parks with concentrated heat load, priority is given to the construction of back-pressure thermoelectric units; Encourage the development of cogeneration.
(seven) the orderly development of low calorific value coal power generation. Strictly implement the industrial policy of low calorific value coal-fired power generation, focus on planning and constructing low calorific value coal-fired power generation projects in coal-producing provinces and coal-mining areas, and in principle, rationally plan the construction scale and order according to local consumption. It is forbidden to build conventional coal-fired power generation projects in the name of low calorific value coal power generation.
According to the utilization value of low calorific value coal resources such as coal gangue, slime and cleaned coal, the best way is chosen to realize comprehensive utilization. The calorific value of coal gangue used for power generation is not less than 5020kJ (1200kcal)/kg. With coal gangue as the main fuel, the basic calorific value of the fuel to be put into the furnace shall not be higher than 14640 kilojoules (3500 kilocalories)/kg. Conditional areas in principle use 300,000 kilowatts and above supercritical circulating fluidized bed units. Low calorific value coal power generation projects should take into account the centralized heat demand of surrounding industrial enterprises and residents as far as possible.
Third, speed up the transformation and upgrading of active troops.
(eight) in-depth elimination of backward production capacity. Improve the follow-up policy of eliminating backward production capacity in thermal power industry, and accelerate the elimination of the following thermal power units: conventional small thermal power units with a single unit capacity of 50 thousand kilowatts or less; Oil-fired boilers and generator sets mainly for power generation; Within the coverage of large power grid, conventional coal-fired thermal power units with a single unit capacity of 65,438+10,000 kilowatts or less, and conventional coal-fired thermal power units with a single unit capacity of 200,000 kilowatts or less have expired their design life and have not implemented heating transformation; Coal-fired thermal power units whose pollutant discharge does not meet the latest national environmental protection standards and do not implement environmental protection transformation. Encourage qualified areas to replace backward small coal-fired thermal power units with high energy consumption and heavy pollution by building back-pressure thermal power units and efficient and clean large thermal power units. Before 2020, we will strive to eliminate backward thermal power units 10 million kilowatts or more.
(nine) the implementation of comprehensive energy-saving transformation. Because the factory system should adopt mature and applicable energy-saving transformation technologies such as steam turbine flow transformation, boiler flue gas waste heat recovery and utilization, motor frequency conversion and heating transformation. , focusing on the 300,000 kW and 600,000 kW subcritical and supercritical units to carry out a comprehensive and systematic energy-saving transformation, and strive to reach the advanced level of the same type of units after the transformation. Pure condensing units with a capacity of 200,000 kilowatts or less will focus on heating transformation, giving priority to back-pressure heating units. Strive to complete the unit capacity transformation by 20 15, with a capacity of10.50 billion kilowatts, which will reach 350 million kilowatts during the thirteenth five-year plan period.
(ten) to promote the transformation of environmental protection facilities. Focus on promoting the environmental protection transformation of air pollutants emitted by coal-fired generating units in service. Coal-fired generator sets must be equipped with efficient desulfurization, denitrification and dust removal facilities. Those who fail to meet the standards should speed up the transformation and upgrading of environmental protection facilities to ensure that they meet the requirements of full-load and full-time stable emission standards above the minimum technical output. We will steadily promote the environmental protection transformation of public coal-fired units with an active service of 300,000 kilowatts and above and those with conditions below 300,000 kilowatts in the eastern region, start the demonstration project of 8 million kilowatts units in 20 14, and strive to complete the transformation of units with a capacity of 65.438+0.5 billion kilowatts by 2020. Encourage active coal-fired generating units in other areas to carry out environmental protection transformation with the emission concentration of air pollutants reaching or close to the emission limit of gas turbine units.
Because the factory system should adopt mature and applicable environmental protection transformation technology, low (low) temperature electrostatic precipitator, electric bag precipitator, bag precipitator and other equipment can be used for dust removal, and wet electrostatic precipitator is encouraged to be installed; In terms of desulfurization, the desulfurization device can be expanded, and if necessary, more efficient desulfurization facilities such as single tower double circulation and double tower double circulation can be adopted; Denitrification can adopt technologies such as low-nitrogen combustion and high-efficiency SCR (selective catalytic reduction) denitration device.
(eleven) to strengthen the energy saving and emission reduction of self-provided units. For the thermal power units of enterprise-owned power plants, if they meet the conditions of elimination in Article (8), the enterprises shall implement independent elimination; Self-provided coal-fired generating units with coal consumption higher than the average level of the same type of units of 5 g/kWh or above should speed up the implementation of energy-saving transformation; Self-owned coal-fired generating units that have not achieved the emission standards of air pollutants should speed up the implementation of the transformation and upgrading of environmental protection facilities; In the eastern region, the self-provided coal-fired generating units with a capacity of 6.5438+10,000 kilowatts and above should gradually implement the environmental protection transformation that the emission concentration of air pollutants basically reaches the emission limit of gas turbine units.
Under the condition of ensuring the gas source, the natural gas replacement and reconstruction task of self-owned coal-fired power stations will be basically completed in Beijing-Tianjin-Hebei region, Yangtze River Delta urban agglomeration and Pearl River Delta urban built-up areas by 20 17.
Fourth, improve the unit load rate and operation quality.
(12) Optimize the dispatching mode of electric power operation. Improve the dispatching rules and regulations, emphasize the management of peak shaving and frequency modulation, give priority to the use of adjustable capacity hydropower for peak shaving, give full play to the role of peak shaving power sources such as pumped storage power stations and natural gas power generation, and explore the application of energy storage peak shaving technology.
Reasonably determine the peak-shaving sequence and depth of coal-fired generating units, actively implement wheel-stop peak-shaving and explore the application of start-stop peak-shaving methods to improve the load rate of high-efficiency and environmental-friendly coal-fired generating units. Improve the compensation mechanism of auxiliary services for peak shaving and frequency modulation, explore market-oriented transactions of auxiliary services, and give appropriate compensation to coal-fired generating units that undertake peak shaving tasks.
Improve the management mode of power grid reserve capacity, make overall arrangements for the reserve capacity of regional power grid systems, and give full play to the ability of inter-provincial mutual assistance and short-term power complementarity. Reasonably arrange the start-up modes of various generator sets, and minimize the rotating reserve capacity of the power grid on the premise of ensuring the safety of the power grid. Support conditional regional pilot implementation from "sub-unit scheduling" to "branch scheduling".
(XIII) Operation optimization of propulsion device. Strengthen the comprehensive diagnosis of coal-fired generating units, actively carry out operation optimization tests, scientifically formulate optimized operation schemes, and reasonably determine operation modes and parameters, so as to keep the units in the best operation state within various load ranges. Do a good job in the operation and maintenance of equipment and environmental protection facilities of coal-fired generating units, improve the safety and health level of the units and the availability rate of equipment, and ensure the normal operation of environmental protection facilities.
(fourteen) to strengthen the quality and measurement control of electric coal. Power generation enterprises should strengthen the management of coal-fired procurement, encourage the main coal sources to be fixed through "coal-electricity integration" and signing long-term contracts, ensure that the coal quality meets the design coal type, and encourage the use of high-quality coal with low sulfur and low ash; Strengthen the measurement and quality inspection of coal into the furnace, strictly control the deviation of mining and processing, and ensure the authenticity and credibility of coal consumption indicators.
Restrict the exploitation and utilization of high-sulfur and high-ash coal in different places, and prohibit the import of inferior coal for power generation. Coal enterprises should actively implement the quality project of thermal coal, speed up the construction of coal washing facilities as required, actively take measures such as screening and coal blending, and strive to improve the supply quality of thermal coal.
(fifteen) to promote the coordinated development of network sources. Accelerate the construction of the "West-to-East Power Transmission Channel", expand the regional backbone power grid, strengthen the inter-provincial power grid interconnection within the regional power grid, and enhance the inter-provincial power transmission and mutual assistance capabilities. Improve the power grid structure, realize the coordination and matching of power grids with different voltage levels, and ensure the reliable access and transmission of power generated by each unit. Actively promote the intelligent development of power grid.
(sixteen) to strengthen the power demand side management. Improve the power demand side management system and mechanism, improve the peak-valley electricity price policy, and encourage power users to use low-valley electricity. Actively take measures such as shifting peaks and filling valleys to reduce the peak shaving demand of power grid. Guide power users to actively adopt energy-saving technology products, optimize the way of electricity use, and improve the efficiency of electricity use.
Verb (abbreviation of verb) promotes technological innovation and comprehensive application.
(seventeen) to improve the level of technology and equipment. Further increase support for research and development of major key technologies and equipment for energy saving and emission reduction of coal-fired power generation, and master the most advanced technologies such as dust removal, desulfurization, denitrification, energy saving, water saving and land saving through the combination of introduction and independent development.
Focus on high-temperature materials, fully master the design and manufacturing technology of 600℃ ultra-supercritical units with independent intellectual property rights, and accelerate the research and development of 700℃ ultra-supercritical power generation technology. Promote the construction of demonstration project of secondary reheat ultra-supercritical power generation technology. Expand the demonstration application of integrated gasification combined cycle (IGCC) technology, and improve the localization level and economy. Carry out technical research on ultra-supercritical circulating fluidized bed units in due course. Technical research and development to promote the transformation from subcritical unit to supercritical unit. Further improve the manufacturing level of auxiliary machines in power stations and promote the localization of key supporting equipment. In-depth study of carbon capture and storage (CCS) technology, and timely application demonstration.
(eighteen) to promote the optimization of engineering design. Formulate (revise) industrial policies, industrial standards and technical specifications for coal-fired power generation, and standardize and guide the engineering design of coal-fired power generation projects. Support local governments to formulate local standards for the emission of air pollutants from thermal power plants that are stricter than national standards. Strengthen the post-evaluation of coal-fired power generation projects, strengthen the feedback of engineering design, construction and operation experience, and improve the optimization level of engineering design. Actively promote the design concept of circular economy and strengthen the comprehensive utilization of resources such as fly ash.
(nineteen) to promote the application of technology integration. Strengthen the construction of enterprise technological innovation system, promote the integration of Industry-University-Research, and support electric power enterprises, universities and scientific research institutions to carry out advanced technological innovation of energy saving and emission reduction of coal-fired power. Actively promote the construction of integrated application demonstration projects of advanced technologies for energy conservation and emission reduction of coal-fired power, create a number of major technology research demonstration bases, and promote the industrialization of scientific research and innovation achievements based on engineering projects. Actively carry out advanced technology experience exchange and realize technology sharing.
Sixth, improve the supporting policies and measures.
(twenty) to promote energy-saving and environmental protection power generation. Considering the level of energy efficiency and environmental protection, the distribution of on-grid electricity should fully consider the emission level of air pollutants of units, and appropriately increase the utilization hours of units with leading energy efficiency and environmental protection indicators. For the coal-fired generator set whose emission concentration of air pollutants is close to or reaches the emission limit of gas turbine set, its power generation utilization hours can be increased within a certain period of time. For those who should implement energy-saving and environmental protection transformation according to regulations but fail to complete it on schedule, the hours of power generation utilization can be appropriately reduced.
(twenty-one) the implementation of coal-fired energy conservation and emission reduction is linked to new projects. Provinces (autonomous regions and municipalities) annual thermal power construction plan should give priority to new coal-fired power generation projects with advanced energy efficiency and environmental protection indicators. Provincial energy authorities should give priority to the new projects of enterprises with advanced energy efficiency and environmental protection indicators of coal-fired power generation, actively implement the upgrading of coal-fired power generation and achieve remarkable results; Enterprises with backward energy efficiency and environmental protection indicators of coal-fired power generation and poor completion of coal-fired power generation upgrading tasks may be restricted from approving their new projects.
For coal-fired power generation projects built according to the principle of coal equivalent substitution, the energy-saving amount (calculated by standard coal amount) formed by the energy-saving transformation of active coal-fired generating units in the same area can be used as the source of coal substitution. After the existing coal-fired generating units are reformed to be close to or reach the emission limit of gas turbine units, the total emission of air pollutants will be given priority for the new coal-fired power generation projects of enterprises in the same region.
(twenty-two) improve the price tax policy. Improve the environmental protection electricity price policy of coal-fired generating units, and study the electricity price support policy for coal-fired generating units whose emission concentration of air pollutants is close to or reaches the emission limit of gas turbine units. Encourage all localities to formulate tax and fee support policies for back-pressure thermoelectric units according to local conditions and increase support.
For coal-fired generating units whose emission concentration of air pollutants is close to or reaches the emission limit of gas turbine units, all localities may formulate preferential tax policies according to local conditions. Support qualified areas to implement differentiated sewage charging policies.
(23) Broaden investment and financing channels. Coordinate the use of relevant funds and give appropriate financial subsidies to major technology research and development and demonstration projects for energy conservation and emission reduction of coal-fired power. Encourage private capital and social capital to enter the field of energy conservation and emission reduction of coal-fired power. Guide banking financial institutions to increase credit support for coal-fired power energy-saving and emission reduction projects.
Support power generation enterprises to cooperate with relevant technical service institutions to promote energy-saving and environmental protection transformation of coal-fired generating units through contract energy management. In areas where emissions trading, carbon emission trading and energy saving trading have been carried out, power generation enterprises are actively supported to raise transformation funds through trading.
Seven, do a good job of task implementation and supervision.
(twenty-four) clear responsibilities of government departments. The National Development and Reform Commission, the Ministry of Environmental Protection and the National Energy Administration, jointly with relevant departments, are responsible for the overall guidance, coordination, supervision and management of the upgrading of coal-fired power plants nationwide, and define the objectives and tasks of upgrading coal-fired power plants in all provinces (autonomous regions and municipalities) and central power generation enterprises. The National Development and Reform Commission and the National Energy Administration focus on strengthening the guidance, coordination and supervision of energy-saving work of coal-fired power generation, while the Ministry of Environmental Protection and the National Energy Administration focus on strengthening the guidance, coordination and supervision of pollutant emission reduction work of coal-fired power generation.
The relevant competent departments of all provinces (autonomous regions and municipalities) shall formulate the action plan of the province (autonomous regions and municipalities) in a timely manner, organize all localities and power plants to formulate specific implementation plans, improve policies and measures, and strengthen supervision and inspection. The agencies dispatched by the National Energy Administration shall, jointly with provincial energy conservation authorities, environmental protection departments and other units, be responsible for supervising the upgrading and transformation of coal-fired electricity in various regions and enterprises. Relevant departments at all levels should cooperate closely, strengthen coordination, and work together to form a joint effort.
(twenty-five) to strengthen the main responsibility of enterprises. Power generation enterprises are responsible for upgrading and reducing emissions of coal-fired power generation. According to the requirements of the relevant departments of the state and the province, it is necessary to formulate enterprise action plans in detail, strengthen internal management, increase capital investment, and ensure the completion of objectives and tasks. Central power generation enterprises should actively play an exemplary role, decompose and implement the clear national objectives and tasks to specific places and power plants in time, and strive to complete them ahead of schedule to ensure that the energy efficiency and environmental protection indicators of coal-fired generating units reach advanced levels.
Power grid enterprises at all levels should do a good job in optimizing power dispatching, improving power grid structure, strengthening power demand side management, and implementing relevant supporting policies, and actively create favorable conditions to ensure the smooth implementation of coal-fired power upgrading and transformation in various regions and power generation enterprises.
(twenty-six) the implementation of strict testing and evaluation. After the new coal-fired generator set is approved, the enterprise shall timely conduct the performance acceptance test of the generator set according to the regulations, and submit the acceptance test report and other related materials to the agencies dispatched by the National Energy Administration and the relevant departments of the province (autonomous region or municipality) where it is located. Before the implementation of energy-saving transformation of active coal-fired generating units, the power plant should formulate specific transformation plans. After the completion of the transformation, the relevant departments of provinces (autonomous regions and municipalities) shall organize qualified intermediaries to conduct on-site assessment and confirm the amount of energy saving, and the assessment report shall also be copied to the agency of the National Energy Administration. The relevant departments of all provinces (autonomous regions and municipalities) may conduct spot checks as appropriate.
After the newly-built coal-fired generating unit is put into operation and the existing unit is transformed into an environmental protection unit, the environmental protection department shall timely organize special environmental protection acceptance, detect the emission level of atmospheric pollutants, ensure the scientific and accurate detection data, and confirm the pollutant emission reduction of the transformed unit.
(twenty-seven) strict target task assessment. The National Development and Reform Commission, the Ministry of Environmental Protection and the National Energy Administration shall, jointly with relevant departments, formulate assessment methods to assess the completion of the objectives and tasks of coal-fired power upgrading in the provinces (autonomous regions and municipalities) and central power generation enterprises in the previous year, and the assessment results shall be announced to the public in a timely manner. Inform the provinces (autonomous regions and municipalities) and central power generation enterprises with poor completion of the target tasks, and interview their relevant responsible persons. The relevant departments of all provinces (autonomous regions and municipalities) may formulate assessment methods for all localities and enterprises in light of local conditions.
(twenty-eight) to implement effective supervision and inspection. The National Development and Reform Commission, the Ministry of Environmental Protection and the National Energy Administration will, jointly with relevant departments, carry out special supervision and on-site inspection on the upgrading and transformation of coal-fired power, and form a special report to the public. Provincial environmental protection departments and agencies dispatched by the National Energy Administration should strengthen the supervision of the construction and operation of the continuous monitoring system for flue gas emission (CEMS) of coal-fired generating units and the emission indicators of major pollutants. Environmental protection departments at all levels should strengthen environmental law enforcement inspection.
If there are major problems such as fraud and unauthorized closure of environmental protection facilities, it is necessary to interview the main person in charge, make rectification within a time limit and recover their illegal income; If there is any illegal act, the relevant personnel shall be investigated and punished according to law. For power grid enterprises that fail to implement energy-saving and environmental protection power generation dispatching, unreasonable arrangement of frequency modulation and peak shaving and standby capacity, failure to give full play to the role of peak shaving power sources such as pumped storage power stations, and failure to effectively implement power demand side management, it is necessary to interview their main responsible persons and make rectification within a time limit.
(twenty-nine) actively promote information disclosure. The National Energy Administration shall, jointly with relevant departments, industry associations and other units, establish and improve the information platform for energy conservation and emission reduction of coal-fired power, and formulate measures for information disclosure. For new coal-fired power generation projects, the energy conservation authorities and environmental protection departments responsible for examination and approval should take the initiative to disclose their energy conservation assessment and environmental impact assessment information and accept social supervision.
(30) Play the role of social supervision. Make full use of 12398 energy regulatory complaint reporting telephone, unblock complaint reporting channels, give play to the role of social supervision, and promote the smooth development of coal-fired power upgrading and transformation. The agency of the National Energy Administration shall, in accordance with its responsibilities and relevant regulations, promptly accept and handle complaints and reports from the masses, and timely inform the relevant situation; For violations of laws and regulations, they should be handed over for inspection in time and dealt with according to law.
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