Methanol production from coke oven gas has strong market competitiveness and risk resistance. As long as coke oven and coke can survive, methanol in coke oven gas can survive. In 2007, China produced 340 million tons of coke. Coking enterprises produce 400 cubic meters of coke oven gas for every 1 ton of coke produced in the coking process. Because the construction of a methanol plant with an annual output of 654.38+10,000 tons only needs 200 million cubic meters of coke oven gas, under the new situation of controlling output, adjusting industrial structure and implementing clean production in coke industry, the production of methanol from coke oven gas has broad vitality and development prospects.
The main demand areas downstream of methanol are formaldehyde, carbonyl acetic acid, methanol fuel, dimethyl ether and so on. Among them, formaldehyde and carbonyl acetic acid industries are growing steadily, which is not enough to digest the excessive growth of methanol production capacity. What can't be ignored is the demand of methanol fuel and dimethyl ether for methanol. However, methanol fuel and dimethyl ether are greatly affected by the policy. Respectively, firstly, according to the deployment of the State Council, the National Standardization Administration Committee is now organizing the formulation of national standards for high-proportion methanol gasoline products, and will also formulate national standards for low-proportion methanol gasoline products this year. Domestic automakers such as Chery and Brilliance are also stepping up the development of cars that use a high proportion of methanol gasoline. It can be expected that the national market restrictions of methanol gasoline may be relaxed under the premise of standardized operation. Secondly, because the production process of methanol to dimethyl ether is not complicated, the market prospect of the product is also very good. Dimethyl ether can replace liquefied petroleum gas in the near future and diesel oil in the long run. These products are in great demand and shortage in the domestic market, and more than 20 sets of methanol-to-dimethyl ether plants have been built in China. Methanol to olefins and methanol to propylene can replace naphtha to produce ethylene and propylene. The state has issued relevant policies to support the development of alcohol ether fuel, methanol to olefins and methanol to propylene industries. Now the National Development and Reform Commission has approved the construction of two sets of methanol-to-olefin projects in China. In August 2006, the technical development project of methanol to light olefins, which was completed by Dalian Institute of Chemistry of China Academy of Sciences in cooperation with two other companies, passed the technical appraisal, providing a reliable process technology for Shenhua Group to build a 600,000-ton/year methanol to olefins plant. The research and development of methanol to propylene technology in China is also progressing smoothly. The first domestic methanol-to-propylene project introduced by Datang Company is about to be completed. The development of these industries will effectively ensure the rigid demand of methanol market in China.