Oil chemical industry and coal chemical industry door

The fine chemical industry often produces engineering materials and functional materials required by a number of industries and cutting-edge technology engineering in the national economy, such as military industry, with high added value, such as catalysts, surfactants, additives and additives, etc., the raw material source is the various basic organic matter and organic raw materials of the first three processes. It can be said that the degree of refinement of organic products is already a scale to measure the level of the entire petrochemical industry.

2.2 Coal chemical transformation process: the comprehensive utilization of multiple materials and types of coal

The transformation process of coal includes low temperature distillation of coal, coking, recovery and refining of coal coking chemical products, coal gasification, direct coal liquefaction, indirect coal liquefaction, coal carbon products, etc. The low temperature distillation of coal uses a low heating temperature (500 ~ 600℃), so that the coal is heated and decomposed into semi-coke, low temperature coal tar, gas and pyrolysis water under the condition of isolation of air. Coking is a process of high temperature retorting. Coking coal is heated to about 1000℃ under isolated air conditions, and coke, coke oven gas and other coking chemical products are produced by thermal decomposition and coking. Coal coking chemicals include ammonium sulfate, ammonium phosphate, benzene, toluene, methane and so on. Coal gasification takes coal or coal coke as raw material, oxygen (air, oxygen rich or pure oxygen), water vapor or hydrogen as gasification agent, and converts the combustible part of coal or coal coke into gas fuel or downstream raw materials, such as methanol, ethylene glycol, dimethyl ether, etc., through chemical reaction under high temperature conditions; Coal liquefaction is the direct or indirect way to convert solid coal into liquid fuel and various chemical raw materials. The coal carbon process includes the preparation and synthesis of activated carbon, molecular sieve, graphene, etc.