Chemical production using coal as a raw material

Coal – Coke – By-product coke benzene – Benzene oxide cyclohexanone, as well as a range of processed products derived from benzene

Gasification – Syngas – Synthetic ammonia, methanol, low-carbon mixed alcohols, gasoline, diesel, etc

After gasification, it becomes syngas (carbon monoxide plus hydrogen), which can be used to produce synthetic ammonia, ammonium carbonate, **, urea, methanol, dimethyl ether, and so on.

Gasification – Syngas – Synthetic ammonia, methanol, low-carbon mixed alcohols, gasoline, diesel, etc； Coal gasification – to syngas – for ammonia synthesis, ammonium carbonate, **, urea, methanol, dimethyl ether. Coal gasification – to shifted gas – for methanation to produce synthetic natural gas. Coal gasification – to syngas – for methanol – for propylene, polypropylene

There are three main routes for chemical production using coal as a raw material: coal liquefaction, coal gasification, and coal coking. Coal liquefaction can produce chemical products such as gasoline and diesel. The raw gas obtained after gasification can be used to produce methanol, low-carbon hydrocarbons, dimethyl ether, gasoline, and more. Coal coking can produce coke, benzene, ammonia, tar products, and more.

　Coal chemical industry-------an industry that converts coal into gaseous, liquid, and solid products or semi-products through chemical methods, which are then further processed into chemical and energy products. 　　Including coking, calcium carbide chemistry, gasification, etc. As global oil resources continue to decline, coal chemical industry holds broad prospects. 　　The process of converting coal into gaseous, liquid, and solid fuels as well as chemicals through chemical processing, using coal as the raw material. 　　It mainly includes coal gasification, liquefaction, carbonization, as well as tar processing and calcium carbide-acetylene chemical industry. 　　Among the production technologies available in coal chemical industry, coking is the earliest applied process, and it remains an important part of the chemical industry to this day. 　　Coal gasification plays an important role in coal chemical industry; it is used to produce various gaseous fuels and represents a clean source of energy that helps improve people’s living standards and contribute to environmental protection ； The syngas produced by gasification is a raw material for various products such as synthetic liquid fuels. 　　Direct coal liquefaction, namely coal hydrogenation liquefaction under high pressure, can produce synthetic oil and chemical products. During oil shortages, liquefied coal products will replace current natural oil. 　　Coal chemical industry began in the second half of the 18th century, and a complete coal chemical system was established in the 19th century. Entering the 20th century, many organic chemicals derived from agricultural and forestry products were shifted to being produced from coal, making coal chemistry an important part of the chemical industry. After World War II, the petrochemical industry developed rapidly, and the production of many chemicals shifted from using coal as a raw material to using oil and natural gas, thereby reducing the importance of coal-based chemical industries within the chemical sector. The chemical structure of the organic matter in coal consists of large molecular structures with aromatic rings as the core units, connected to each other by bridge bonds and containing various functional groups. Through thermal and catalytic processing, coal can be converted into various fuels and chemical products. Coking is the earliest applied method and remains the most important one to this day; its main purpose is to produce coke for metallurgical use, while also generating by-products such as gas, as well as aromatic compounds like benzene, toluene, xylene, and naphthalene. Coal gasification also holds an important role in coal chemical industry; it is used to produce city gas and various fuel gases, as well as syngas ； Processes such as low-temperature carbonization of coal, direct coal liquefaction, and indirect coal liquefaction primarily produce liquid fuels.