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Production process for preparing liquid hydrocarbon fuel through hydrolysis of coal

A hydrolyzate and coal technology, applied in the preparation of liquid hydrocarbon mixtures, petroleum industry, organic compound/hydride/coordination complex catalysts, etc., can solve problems such as complex process, high equipment requirements, harsh reaction conditions, etc.

Active Publication Date: 2011-10-12
CHINA FUEL HUAIBEI BIOENERGY TECH DEV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the reaction conditions of direct liquefaction are quite harsh, with a hydrogenation reaction system with a temperature close to 500°C and a pressure of more than 150 kg; the indirect method of coal gasification produces liquid hydrocarbon fuels, the gasification temperature exceeds 1000°C, and the requirements for coal quality are very high , and, due to the high content of sulfur, nitrogen, heavy metals, etc. in coal, the reaction process control and reaction equipment need to deal with sulfur, nitrogen, heavy metals, etc., the process is complicated and the equipment requirements are high

Method used

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  • Production process for preparing liquid hydrocarbon fuel through hydrolysis of coal
  • Production process for preparing liquid hydrocarbon fuel through hydrolysis of coal
  • Production process for preparing liquid hydrocarbon fuel through hydrolysis of coal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] Embodiment 1: can be converted into the catalyst of " formula one " structure in water: Four p-benzenesulfonyl porphyrin ferric sodium (corresponding catalyst general formula M=Fe, S=O)

[0073]

[0074] 60 grams of pulverized lignite and 40 grams of pulverized and dried wheat straw, 1 gram of four-porphyrin ferric sodium, and 800 milliliters of 4.5% sodium hydroxide aqueous solution are all added to a 1000 milliliter stainless steel high-pressure reactor, and the reaction is sealed system, heated to 250°C, kept for 100 minutes and then cooled back to room temperature. No change in pressure was observed before and after the reaction (no gasification reaction occurred). After taking out the reaction mixed product, the reactor was washed twice with a small amount of pure water. No trace of carbonization reaction was found in the reaction kettle. The reaction mixture and washing liquid were combined and filtered. The filter residue was washed twice with a small amount o...

Embodiment 2

[0075] Embodiment 2: L-M=O class catalyst catalytic hydrolysis (catalyst: sodium perrhenate NaReO 4 , corresponding to the general formula of the catalyst, M=Re, S=O)

[0076] 60 grams of pulverized lignite and 40 grams of pulverized dry wheat straw, 1 gram of sodium perrhenate, and 800 milliliters of 4.5% sodium hydroxide aqueous solution are all added in a 1000 milliliter stainless steel high-pressure reactor, and the reaction system is sealed and heated to 250°C temperature, keep warm for 100 minutes and then cool back to room temperature. No change in pressure was observed before and after the reaction (no gasification reaction occurred). After taking out the reaction mixed product, the reactor was washed twice with a small amount of pure water. No trace of carbonization reaction was found in the reaction kettle. The reaction mixture and washing liquid were combined and filtered. The filter residue was washed twice with a small amount of pure water and then vacuum-dried. ...

Embodiment 3

[0077] Embodiment 3: catalyst: mercuric trifluoroacetate Hg (OCOCF 3 ) 2 (Catalysts that can be converted into L-M-OH classes in water, corresponding to M=Hg in the general formula of the catalyst, S=O)

[0078] 60 grams of pulverized lignite and 40 grams of pulverized dry wheat straw, 1 gram of mercuric trifluoroacetate, and 800 milliliters of 4.5% aqueous sodium hydroxide solution were all added to a 1000 milliliter stainless steel high-pressure reactor, and the reaction system was sealed and heated to 250°C temperature, keep warm for 100 minutes and then cool back to room temperature. No change in pressure was observed before and after the reaction (no gasification reaction occurred). After taking out the reaction mixed product, the reactor was washed twice with a small amount of pure water. No trace of carbonization reaction was found in the reaction kettle. The reaction mixture and washing liquid were combined and filtered. The filter residue was washed twice with a sma...

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Abstract

The invention relates to a new production process for preparing a liquid hydrocarbon fuel by using coal as raw material and in particular to a production process in which cellulose is used for assisting the hydrolysis of coal and then the obtained hydrolyzate is used for preparing a liquid hydrocarbon fuel through hydrogenation reaction. The method is adopted to realize the hydrolysis of coal for the first time. The temperatures and pressures of the hydrolysis reaction and hydrogenation reaction of the production process are greatly reduced compared with those of the production process adopting direct coal liquefaction or indirect coal liquefaction; and less or nearly no influences of substances in coal such as sulfur, nitrogen and heavy metals on the hydrogenation process exist, and the production cost for preparing the liquid hydrocarbon fuel by utilizing the coal is effectively reduced.

Description

technical field [0001] The invention relates to a brand-new production process for preparing liquid hydrocarbon fuels from coal. Specifically, it first catalyzes and hydrolyzes coal into small molecular organics, and then hydrogenates them under milder conditions than current coal liquefaction conditions. Method and production process for liquid hydrocarbon fuel. Background technique [0002] The reserves of coal in the earth are far higher than those of oil. At the beginning of this century, petroleum energy has entered the peak of its supply. Under the current technological conditions of human society, liquid hydrocarbon fuels are irreplaceable for a long period of time, and human beings are trying different methods of preparing liquid hydrocarbon fuels from coal. Known methods all require higher coal quality due to relatively serious defects, and industrialization has not been formed. For example, the reaction conditions of direct liquefaction are quite harsh, with a hy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G1/00C10G1/06B01J31/22
Inventor 朱作霖孙萌苏春高
Owner CHINA FUEL HUAIBEI BIOENERGY TECH DEV