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[Chemical Knowledge]：The production and manufacturing method and process of coal-to-oil.

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Research on
the manufacturing method of coal to oil
Abstract

This paper introduces the manufacturing method of coal to oil in the field of chemical production raw materials. Through the detailed introduction of the development process, process type and process flow of coal-to-oil process, the manufacturing method of coal-to-oil is discussed in order to provide some guidance for the production of coal-to-oil.

keywords: coal-to-oil, chemicals, production raw materials, manufacturing methods

1. Introduction

With the decreasing of petrochemical resources, coal as China's rich fossil resources, its transformation and utilization has gradually become a research hotspot. Coal-to-oil technology is a technology that converts coal into oil products, which is of great significance to alleviate the shortage of oil resources in China and promote the clean and efficient use of coal resources. This paper will introduce the manufacturing method of coal to oil in detail, in order to provide some guidance for the production of coal to oil. The development of coal-to-liquid technology in

2.
the development of
coal-to-liquid technology can be traced back to the early 20th century, when German scientists Fischer and Tropsch first proposed the concept of coal-to-liquid. After nearly a hundred years of development, coal-to-liquid technology has become increasingly mature and has become an important source of global oil alternative energy.

3. coal-to-oil process types

coal-to-oil processes are mainly divided into two types: direct liquefaction and indirect liquefaction.

1. Direct liquefaction process: coal is directly converted into oil under high temperature and high pressure conditions through the action of a catalyst. The advantages of this process are high oil yield, but large equipment investment and harsh operating conditions.
2. Indirect liquefaction process: first, coal is gasified to produce synthesis gas (CO and H2), and then the synthesis gas is reacted by Fischer-Tropsch synthesis to produce oil under the action of a catalyst. The advantages of this process are relatively mild operating conditions and low equipment investment.

4. coal-to-oil process

coal-to-oil process mainly includes the following steps:

1. Coal pretreatment: coal crushing, screening, drying and other processing, in order to meet the requirements of the subsequent process.
2. Coal gasification: Under high temperature and high pressure conditions, coal is converted into synthesis gas.
3. Purification treatment: The synthesis gas is purified to remove impurities in the synthesis gas to ensure the smooth progress of the subsequent Fischer-Tropsch synthesis.
4. Fischer-Tropsch synthesis: Under the action of a catalyst, synthesis gas undergoes a Fischer-Tropsch synthesis reaction to produce oil.
5. Product separation and purification: separation and purification of the generated oil to obtain qualified oil products.

5. of coal-to-oil manufacturing methods to explore

1. Select the appropriate coal: According to the requirements of the coal-to-oil process, select the appropriate coal to ensure the effect of coal gasification and liquefaction.
2. Optimize gasification conditions: by adjusting the gasification temperature, pressure, gasification agent and other conditions, improve the efficiency of coal gasification and reduce energy consumption.
3. Selection and use of catalyst: Select the appropriate catalyst and optimize the conditions of use of the catalyst to improve the efficiency of Fischer-Tropsch synthesis and the quality of the oil.
4. Strengthen equipment maintenance and management: regular maintenance and maintenance of production equipment to ensure the normal operation of equipment and improve production efficiency.

6. conclusion

coal-to-oil technology, as a technology that converts coal into oil, is of great significance for alleviating the shortage of oil resources in China and promoting the clean and efficient use of coal resources. Through the detailed introduction of the development process, process type and process flow of coal-to-oil process, the manufacturing method of coal-to-oil is discussed. In the actual production process, it is necessary to select the appropriate coal, optimize the gasification conditions, use the catalyst rationally, and strengthen the equipment maintenance and management to improve the production efficiency and economic benefits of coal-to-liquid.

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