Multi-generation method and device for preparing methanol, LNG and liquid fuel from coal

A liquid fuel, coal-to-methanol technology, used in waste fuels, refrigeration and liquefaction, chemical instruments and methods, etc. Carbon alcohols are not separated, etc.

Pending Publication Date: 2017-12-01
李大鹏
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Problems solved by technology

However, these two technologies have the disadvantages of low yield of low-carbon alcohols and no separation of low-carbon alcohols, high energy consumption and low yield of target products.
Although the above-mentioned invention patents partially involve the process route of coupling coal gasification with syngas to produce low-carbon alcohols and syngas to produce natural gas, none of them have fundamentally realized the classificati

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  • Multi-generation method and device for preparing methanol, LNG and liquid fuel from coal

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Embodiment Construction

[0024] In order to make the technical scheme and advantages of the present invention clearer, the method and device for coal-to-methanol, LNG, and liquid fuel polygeneration disclosed in the application of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0025] see figure 1 , the device of the present invention includes a pulverized coal preparation and transportation unit 1 and a pulverized coal pyrolysis and gasification integrated reaction unit 2 connected thereto, and the outlet of the pulverized coal pyrolysis and gasification integrated reaction unit 2 is separated from the product It is connected with the recovery unit 3, and the gas outlet of the product separation and recovery unit 3 is connected with the transformation unit 4, the low-temperature methanol washing unit 5, the molecular sieve adsorption unit 6, and the demethanization washing unit 7 in turn, and the syngas outlet at the top ...

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Abstract

The invention relates to a multi-generation method and a multi-generation device for preparing methanol, LNG and liquid fuel from coal. The device comprises an integrated system for extracting coal tar from pulverized coal and preparing methane-enriched synthesis gas, a synthesis gas purification system, a system for preparing LNG through cryogenic separation, a methane synthesis system and a coal tar deep processing system. According to the method and the device, multiple industries such as coal chemical products, coal gas, coal oil and the like are coupled and integrated to form a novel coal, oil, gas and chemical multi-generation process, efficient conversion and clean utilization of low-rank coal are realized, the additional value of products is greatly increased, and high technical feasibility and market competitiveness are achieved.

Description

technical field [0001] The present invention relates to the utilization of low-level coal resources by quality and classification, and the energy and chemical technology of coal-to-chemicals, coal-to-gas, and coal-to-oil cross-coupling, and specifically relates to a coal-to-methanol, LNG, and liquid fuel polygeneration method and device. Background technique [0002] Among my country's proven fossil energy reserves, coal accounts for about 94%, oil and natural gas account for about 6%, and the per capita remaining oil and gas reserves are only 6% of the world average, so it is difficult to further increase the production of oil and natural gas; my country The foreign dependence on oil and natural gas continues to rise, reaching 63.16% and 34.44% respectively in 2016. Non-fossil energy such as biomass, wind energy, solar energy, and geothermal energy have problems such as low density, intermittent, unstable, and high production costs. It is difficult to form a stable, effecti...

Claims

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Application Information

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IPC IPC(8): C07C29/153C07C31/04C07C9/04C10B53/04C10K1/16C10G1/00C10G1/06C10G61/02F25J3/08
CPCC07C9/04C07C29/153C10B53/04C10G1/002C10G1/06C10G61/02C10G2400/00C10G2400/04C10K1/16F25J3/08C07C31/04Y02E50/30
Inventor 李大鹏
Owner 李大鹏
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