Method for producing tar and hydrocarbon fuel products from coal

A hydrocarbon fuel and tar technology, applied in the field of coal resource processing, can solve problems such as waste of coal, low utilization value of macromolecular substances, and reduction of coal resource utilization efficiency
CN104893748AInactive Publication Date: 2015-09-09XIAN ORIGIN CHEM TECH +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
XIAN ORIGIN CHEM TECH
Publication Date
2015-09-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a method for producing tar and hydrocarbon fuel products from coal. The method comprises steps of pyrolysis, raw gas purification and desulfurization, a methanation process, a methane separation process, a gasification process, a conversion process, a purification process, a sulfur recovery process, a fine desulfurization process, a synthesis process and the like. With the adoption of the method, raw coal is firstly subjected to low-temperature pyrolysis and then subjected to gasification conversion, the types of coal chemical products are increased, and the utilization efficiency of the coal raw material is improved; the problem that low-rank coal cannot be gasified and utilized by a wet-process entrained-flow bed is solved, the raw material consumption during gasification is reduced, the waste water discharge is reduced, the greenhouse gas production amount in the process is reduced, and efficient class-based and quality-based utilization of the coal resource is realized.
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Description

【Technical Field】

[0001] The invention belongs to the technical field of coal resource processing. More specifically, the present invention relates to a method of using coal to produce tar and hydrocarbon fuel products. 【Background technique】

[0002] my country is rich in coal, short in oil, and low in gas. The use of relatively abundant coal resources to produce relatively scarce natural gas and fuel oil (hydrocarbon fuels) is my country’s basic energy strategy and an important technology to ensure social stability and national security. Guarantee. The use of coal to produce hydrocarbon fuel products is generally a method of re-synthesizing the crude gas produced by gasification after coal gasification. This method has the characteristics of high technological maturity, single crude gas product, and flexible subsequent processing routes. The existing coal chemical industry is focusing on the hot spot route, but with the deepening of our country's understanding of the coal indu...

Claims

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