Coal to methanol production process, coal to ethanol manufacturer

Coal storage--- coal transportation--- coal grinding--- pulping--- gasification - transformation--- purification--- synthesis --- distillation There are also small processes such as empty separation to provide nitrogen and oxygen for gasification. Crude methanol storage tanks and refined methanol storage tanks are collectively called irrigation areas. Purification such as low-temperature methanol washing and ammonia cooling, that is, the refrigeration system is also called a small unit.

There are also large units that lift the pressure of the system. The boiler that provides steam now doesn't let the generator generate electricity, and the boiler can only supply steam. There are also circulating water, sewage, desalinated water, electrical, instrumentation, automatic control, unified called public works

The by-product is also sulfur**. Chemical fertilizer.

The purified feed gas is preheated and pressurized, and enters the LURGI reactor from top to bottom at 5 MPa and 220 °C, where it reacts under the action of copper-based catalyst, with an outlet temperature of about 250 and methanol of about 7%, so the feed gas must be circulated, and the synthesis process configuration principle is shown in Figure 3-1.

The synthesis of methanol is a reversible exothermic reaction, in order to achieve a high conversion rate of the reaction, the heat of reaction should be quickly removed, this design adopts LURGI shell and tube reactor, the tube passes the reaction gas, and the shell passes 4MPa boiling water.

The purified feed gas is preheated and pressurized, and enters the LURGI reactor from top to bottom at 5 MPa and 220 °C, where it reacts under the action of copper-based catalyst, with an outlet temperature of about 250 and methanol of about 7%, so the feed gas must be circulated, and the synthesis process configuration principle is shown in Figure 3-1.

The synthesis of methanol is a reversible exothermic reaction, in order to achieve a high conversion rate of the reaction, the heat of reaction should be quickly removed, this design adopts LURGI shell and tube reactor, the tube passes the reaction gas, and the shell passes 4MPa boiling water.

Summary. These manufacturers use different technologies and equipment, and the quality and output of the products they produce are also different. Among them, Shanxi Huaxin Energy Technology Co., Ltd. is one of the earliest enterprises in the field of coal-to-ethanol in China, and its production technology uses high-temperature gas-phase catalytic technology to produce ethanol, with large output and stable product quality.

Inner Mongolia Yili Energy Group adopts advanced integrated technologies of independent coal gasification, coal liquefaction and direct coal alcoholization to produce ethanol products with high quality, and can also produce other chemicals to increase the added value of products.

Dear, hello funny, I'm glad to answer for you, according to your question I inquired for you. Coal-to-ethanol is a technology for producing ethanol from non-food crops such as coal. At present, there are some coal-to-ethanol manufacturers in China, such as Shanxi Huaxin Energy Science and Technology, Inner Mongolia Yili Energy Group, Shaanxi Sanyan Chemical Co., Ltd., and so on.

These manufacturers use different technologies and equipment, and the quality and output of the products they produce are also different. Shanxi Huaxin Energy Technology Co., Ltd. is one of the earliest enterprises in China to enter the field of coal-to-ethanol, and its production technology adopts high-temperature gas-phase catalytic technology to produce ethanol from Zhengshan, with a large output and stable product quality. Inner Mongolia Yili Energy Group adopts advanced integrated technologies of independent coal gasification, coal liquefaction and direct coal alcoholization to produce ethanol products with high quality, and can also produce other chemicals to increase the added value of products.

Shaanxi Sanyan Chemical Co., Ltd. uses intermittent stirring reaction aqueous phase oxidation hydrogenation to produce ethanol, and can also produce ethylene glycol and other chemical products. In general, the coal-to-ethanol market is highly competitive, and the technology and capacity conversion rate of manufacturers are the key factors affecting its competitiveness.

In Yushen Industrial Park, Yulin, Shaanxi, the 500,000-tonne-per-year coal-based ethanol plant is "ready to go". This will be the world's largest coal-based ethanol project, which has established the international leading position of China's coal-to-ethanol technology. How can scientific and technological innovation help achieve the "dual carbon" goal?

Recently, the "Entering the Chinese Academy of Sciences, Journalists' Trip - 'Science and Technology Double Carbon' Service Economy Main Battlefield Yulin Section Activity" was held. The reporter learned in the interview that the 500,000-ton annual coal Paipai ethanol project is expected to start commissioning in September, open up the whole process, and will be officially put into production, which is of great strategic significance to ensure national energy security and food security.

Coal and coke are the main solid fuels for the production of crude methanol gas. The process route of methanol from coal and coke includes fuel gasification, gas desulfurization, transformation, decarburization, and methanol synthesis and refining.

The thermal processing of coal and coke with steam and oxygen is called solid fuel gasification, and the flammable gas obtained by gasification is commonly known as coal gas is the initial raw gas for the manufacture of methanol, and the main equipment for gasification is the gas generator, according to the movement mode of coal in the furnace, the gasification method can be divided into fixed bed (moving bed) gas burial high method, fluidized bed gasification method and flow bed gasification method.

Coal gasification of methanol from coal and coke in China generally follows the fixed-bed intermittent gasification method, and UCJ furnace is used for gas furnaces.

The hydrogen-carbon ratio in the crude feed gas components prepared from coal and coke is too low, so the gas needs to go through a transformation process after desulfurization. The excess carbon monoxide is converted into hydrogen and carbon dioxide, and the excess carbon dioxide is removed through the decarburization process. Methanol is produced after compression, methanol synthesis and distillation.

Summary. Coal-to-methanol is a technology that uses coal as raw material to produce methanol, and its basic process includes coal gasification, water-gas transformation, syngas purification, and methanol synthesis stages, the cost of coal-to-methanol in China is relatively low, and the syngas technology and methanol synthesis technology are mature, and the coal-to-methanol industry has entered a mature period.

Coal-to-methanol is a technology that uses coal as raw material to produce methanol, and its basic process includes coal gasification, water-gas shift, syngas purification, and methanol synthesis stage.

This paper briefly describes the traditional coal-to-methanol process, draws a flow chart, and analyzes and discusses the advancement of coal-to-methanol and carbon dioxide hydrogenation to methanol under the background of carbon peaking and carbon neutrality.

Briefly describe the traditional coal-to-methanol process is the technology of coal-to-methanol is to produce methanol from coal, and its basic process includes coal gasification, water-gas transformation, syngas purification, and methanol synthesis stages.

The hydrogenation of carbon dioxide to methanol is of great strategic significance to alleviate the energy crisis and achieve the goal of "carbon neutrality". Driven by environmental factors and market attraction, enterprises and scientific research institutions in many countries around the world are actively developing and building carbon dioxide hydrogenation to methanol projects in the Zhaozhi Belt, including Denmark Topsoe, Japan's Kansai Electric Power Company, Japanese Ashimoto Mitsui Chemical Company, Japan's Mitsui Chemical Company, Norway's Iceland Company, Germany's Lurgi Company, Korea Institute of Science and Technology, etc., among which Norway's Iceland Company is the leader in the commercialization of carbon dioxide directly to methanol.

The synthesis and purification section of the coal-to-methanol process is an important link in the coal-to-methanol production process, which mainly includes the following steps: 1Synthesis section:

The synthesis of coal-to-methanol mainly adopts the low-pressure synthesis method, that is, at low temperature and low pressure, a catalytic reaction of carbon oxide, carbon dioxide and hydrogen and other gases is buried to produce methanol. The reaction is usually carried out in the presence of a catalyst, and the commonly used catalysts are zinc chromium oxide, copper oxide, cobalt oxide, etc. 2.

Purification section: The synthesized methanol needs to be purified to remove impurities and impurities and improve purity. Commonly used methods in the purification process include steam distillation, adsorption, condensation, etc.

Among them, steam distillation is the most commonly used method, through multi-stage distillation of methanol, the impure substances in it are gradually eliminated to obtain high-purity methanol products. At the same time, this step can also dehydrate the methanol to increase the concentration of methanol to meet the needs of different applications. In short, the synthesis and purification section of the coal-to-methanol process is a complex process, which requires close attention to the process parameters and the use of suitable processes and equipment to ensure the quality and production efficiency <>of the product

Summary. Coal-to-ethanol is a process. The "coal-to-ethanol" project has made the production of ethanol from coal a reality, and has also made it possible for China to promote ethanol gasoline on a large scale.

In addition, ethanol is easy to transport and store, and can partially replace downstream chemicals in ethylene production. In 2022, the world's largest coal-to-ethanol production project independently designed and built by China will be put into operation in Yulin, Shaanxi Province in September 2022, with an estimated annual ethanol output of 500,000 tons.

At present, there are some coal-to-ethanol manufacturers in China, such as Shanxi Huaxin Nengzhou Zhenyuanyanjian Technology Co., Ltd., Inner Mongolia Yili Energy Group, Shaanxi Sanyan Chemical Co., Ltd., etc.

Coal-to-ethanol is a process. The "coal-to-ethanol" project has made the production of ethanol from coal a reality, and has also made it possible for China to promote ethanol gasoline on a large scale. In addition, ethanol is easy to transport and store, and can partially replace downstream chemicals in ethylene production.

In 2022, the world's largest coal-to-jujube ethanol production project independently designed and built by China will be put into operation in Yulin, Shaanxi Province in September 2022, with an estimated annual ethanol output of 500,000 tons.