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Method for producing base oil of lubricating oil

A technology for lubricating base oil and diesel oil, which is used in lubricating compositions, petroleum industry, preparation of liquid hydrocarbon mixtures, etc. rate increase, the effect of improving product composition

Active Publication Date: 2014-05-07
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The purpose of this invention is to provide a kind of method that produces lubricating oil base oil and byproduct diesel oil and naphtha by hydrogen and carbon monoxide. thermal difficulties and hot spots, and provides a method for producing base oils that maximizes the characteristics of the hydrocarbons produced by the process

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  • Method for producing base oil of lubricating oil
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Embodiment

[0046] 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.

[0047] In this embodiment, the Fischer-Tropsch synthesis reactor adopts a reaction tube with an inner diameter of 32 mm. The porous surface layer is manufactured by iron alloy powder sintering process. The thickness is 3mm.

[0048] Fischer-Tropsch synthesis process conditions are: raw material synthesis gas volume space velocit...

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Abstract

The invention discloses a method for producing the base oil of lubricating oil. Hydrogen and carbon monoxide enter a fixed bed reactor to contact a catalyst to perform a Fischer-Tropsch synthesis reaction; heavy hydrocarbon and light hydrocarbon are separated from a synthesis product; the heavy hydrocarbon, the light hydrocarbon and hydrogen are mixed and enter a hydrotreating reactor to contact the catalyst to perform a saturated hydrogenation reaction and a hydrogenation deoxidization reaction; a hydrotreating reaction product enters a fractionation system, and naphtha, diesel fuel and wax-containing lubricating oil are separated; the wax-containing lubricating oil enters a heterogeneous flow reactor to contact the catalyst; the heterogeneous flow product enters a hydrogenation after-refining reactor to be subjected to dilute hydrocarbon saturation and decoloration, and the naphtha, the diesel fuel and the base oil of the lubricating oil are separated. By the method, the problems that the reaction heat is difficult to control and the reactor has heat transfer difficulties and hot spots during the Fischer-Tropsch synthesis reaction are solved, and the method for producing the base oil maximally aiming at the characteristics of producing hydrocarbons in the process is also provided.

Description

technical field [0001] The present invention relates to a kind of method of producing lubricating oil base oil by hydrogen and carbon monoxide, more specifically, is a kind of hydrocarbons obtained by Fischer-Tropsch synthesis reaction, and then produces naphtha, diesel oil and Lubricant base oil method. 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 join...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G2/00C10M177/00
Inventor 徐润胡志海聂红吴昊李猛
Owner CHINA PETROLEUM & CHEM CORP
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