What is the future development direction of biomass cogeneration technology?

Biomass cogeneration technology is a joint solution for the comprehensive application of biomass fuel and cogeneration system. Therefore, the future development of its technology is mainly reflected in the following aspects. Please refer to Jiangsu Energy Cloud Network for details.

Biomass gasification and conversion technology. It refers to the synthesis gas with medium and low calorific value produced by pyrolysis or anaerobic fermentation of biomass raw materials. The specific calorific value depends on the carbon content and hydrogen content of biomass and the characteristics of vaporizer. Syngas products made from vaporizer contain many pollutants, which need to be purified before being used as fuel for downstream equipment. Syngas produced under high temperature and high pressure can be directly introduced into gas turbine for combustion without compression. In order to reduce the heat loss in the process of air entrainment and purification, high pressure and high temperature gas purification technology has become one of the key research directions.

Organic Rankine cycle. This technology is suitable for low-temperature waste heat power generation and can be combined with biomass gasification internal combustion engine to generate electricity. The exhaust waste heat of internal combustion engine is supplied to the evaporator of organic Rankine cycle device to drive the system to run, realize power generation and heat supply, and make maximum use of the energy of biomass gas.

Biomass mixed combustion. That is, part of biomass and part of coal are mixed and burned, reducing part of coal consumption. This technology has been widely used in Norway, Sweden, Finland and the United States, but its application in China is rare and has great development potential. The core content of the study is to solve the problems of biomass fuel selection and combustion ash deposition.