Method for producing clean diesel by hydrogen and carbon monoxide

A carbon monoxide and hydrogen technology, used in the petroleum industry, hydrocarbon oil treatment, hydrotreating process, etc., can solve the problems of difficult heat transfer in the reactor and difficult reaction heat, achieve high product quality, reduce secondary cracking, and improve transmission. Effects of quality and reaction process

Active Publication Date: 2014-05-07
CHINA PETROLEUM & CHEM CORP +1
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AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for producing clean diesel oil from hydrogen and carbon monoxide, which not only solves the problems that the heat of reaction is difficult to control when the Fischer-Tropsch synthesis reaction occurs bet

Method used

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  • Method for producing clean diesel by hydrogen and carbon monoxide

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Embodiment

[0037] The preparation process of the Fischer-Tropsch synthesis catalyst used in the examples is as follows: take aluminum oxide powder, add distilled water dropwise to incipient wetness, record the volume of consumed water, and then calculate according to the Co content (oxide basis) 27% by weight, prepare the Cobalt nitrate impregnation solution. Then impregnate alumina with this solution to incipient wetness, let it stand for 8 hours, then dry it at 120°C for 4 hours, and bake it in a muffle furnace at 450°C for 4 hours to prepare the catalyst. The particle size range of the obtained cobalt-based Fischer-Tropsch synthesis catalyst is 1.2-1.6 mm.

[0038] This embodiment adopts the technological process shown in the accompanying drawing, and the Fischer-Tropsch synthesis reactor adopts 300 reaction tubes with an inner diameter of 32mm, and the porous surface layer is manufactured by the iron alloy powder sintering process, the thickness of the porous surface layer is 0.3mm, ...

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Abstract

The invention discloses a method for producing clean diesel by hydrogen and carbon monoxide. The method comprises the following steps: hydrogen and carbon monoxide enter a heat transfer fixed bed reactor to be in contact with a catalyst to participate in a Fischer-Tropsch synthesis reaction, the synthesized product passes through a hot-cold separator so as to respectively separate heavy hydrocarbons and light hydrocarbons, the light hydrocarbons and hydrogen enter a hydrofining reactor to be in contact with a catalyst to carry out a hydrogenization saturation reaction and a hydrogenization deoxygenation reaction after being mixed, the hydrofined reaction product enters a separation system, the separated tail oil and the heavy hydrocarbons enter a hydrogenization isocracking reactor after being mixed, the product enters the separation system to obtain an intermediate fraction oil product. The method solves the problem that when the Fischer-Tropsch synthesis reaction happens, reaction heat is difficult to control, and difficult heat transfer and hot spots exist in the reactor, and provides the method for producing the clean diesel economically and effectively, and hydrocarbon is produced in the producing process.

Description

technical field [0001] The invention relates to a method for producing clean diesel oil from hydrogen and carbon monoxide, more specifically, a method for producing diesel oil from hydrocarbons obtained through Fischer-Tropsch synthesis reaction through multiple hydrotreating processes. Background technique [0002] Hydrocarbon products are obtained from hydrogen and carbon monoxide through Fischer-Tropsch synthesis (Fischer-Tropsch synthesis). Carbon monoxide and carbon monoxide can be easily converted from coal, natural gas or biomass. This technology path has attracted great attention from the world's energy and chemical industry. Many international energy companies have developed synthetic oil processes with Fischer-Tropsch synthesis as the core. The most successful of these are South Africa's Sasol and Holland's Shell. Sasol's three plants I, II and III have an annual output of 7.2 million tons of oil products and chemicals. The PetroSA project jointly constructed by ...

Claims

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Application Information

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IPC IPC(8): C10G2/00C10G65/02
Inventor 徐润胡志海聂红吴昊李猛
Owner CHINA PETROLEUM & CHEM CORP
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