What is the main research of coal chemical industry?

Chemical methods to convert coal into gas, liquid and solid products or semi-products, and then further processed into chemical and energy products industry. Including coking, calcium carbide chemistry, coal gasification. As the world's oil resources continue to decline, coal chemical industry has a broad prospect. Among the production technologies available for coal chemical industry, coking is the earliest applied process, and is still an important part of the chemical industry. Coal gasification occupies an important position in coal chemical industry, which is used to produce various kinds of gaseous fuels and is a clean energy source, conducive to improving people's living standards and environmental protection; the synthesis gas produced by coal gasification is the raw material for the synthesis of a variety of products, such as liquid fuels. Coal direct liquefaction, i.e. coal high-pressure hydrogenation liquefaction, can produce artificial oil and chemical products. When there is a shortage of oil, the liquefied products of coal will replace the current natural oil. Throughout the development history of the chemical industry in the past hundred years, each change in the structure of raw materials during the period is always accompanied by a huge change in the chemical industry. 1984 world fossil fuels proved recoverable reserves, coal accounted for about 74%, while about 12% of petroleum, natural gas, about 10%, from the resource point of view, coal will be the main raw material of the potential chemical industry. The future of coal chemical industry will be in which areas, and at what rate of development, will depend on the progress of the coal chemical industry itself technology, as well as changes in oil supply and demand conditions and prices. From the near future, iron and steel and other metallurgical industry coke will still rely on coal coking, and coking chemicals such as naphthalene, anthracene and other polycyclic compounds are still petrochemicals is more difficult to replace the organic chemical raw materials; gasification of coal along with the development and application of gasification of new technologies, will continue to be one of the main aspects of the coal chemical industry; will be made into syngas gas gas gas gas, and then through the carbon a chemical synthesis of a series of organic chemical products development and research is Faster progress in recent years, and cause concern in the field; from coal to liquid fuels, whether using low-temperature dry distillation, direct liquefaction or indirect liquefaction, have to depend on the evaluation of technical and economic.