One-pot or one-step method for preparing diesel oil or aviation kerosene

A technology for aviation kerosene and diesel oil, which is applied in the preparation of liquid hydrocarbon mixtures, the petroleum industry, and the treatment of hydrocarbon oils, etc. It can solve problems such as hydrogenation or hydrodeoxygenation catalyst poisoning, equipment corrosion, etc.

Active Publication Date: 2018-06-08
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this work, they used sulfuric acid, p-toluenesulfonic acid, etc. as acid catalysts to cause serious corrosion to equipment. If the elution of sulfuric acid retained in the product is not thorough enough, it will lead to poisoning of downstream hydrogenation or hydrodeoxygenation catalysts.

Method used

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  • One-pot or one-step method for preparing diesel oil or aviation kerosene
  • One-pot or one-step method for preparing diesel oil or aviation kerosene
  • One-pot or one-step method for preparing diesel oil or aviation kerosene

Examples

Experimental program
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Embodiment

[0043] 1. Preparation of catalyst:

[0044] 1) Preparation of solid acid catalyst: Nafion and Amberlyst resins are commercial catalyst products purchased directly.

[0045] The activated carbon used in the present invention is pretreated by immersing in nitric acid with a mass concentration of 20-50% at 80° C. for 24 hours. Mix activated carbon (AC) or mesoporous carbon (MC) with concentrated sulfuric acid (95%) at a mass ratio of 1:15, raise the temperature to 250°C under nitrogen protection, keep it for 24h, filter it, and wash it with 80°C hot water several times, then washed with deionized water until neutral, and dried overnight at 120°C. Zirconium phosphate (ZrP) catalyst is mixed with 1mol / L zirconium oxychloride and ammonium dihydrogen phosphate aqueous solution at a volume ratio of 2:1, and the obtained precipitate is washed and filtered repeatedly, dried at 120°C for 10h, and then dried at 400°C Under roasting 4h. The sulfonated alumina is mixed with γ-Al2O3 and 2...

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Abstract

The invention relates to a novel synthesis route of liquid chain hydrocarbon fuel from platform compounds obtained on the basis of lignocellulose as a raw material completely independent of fossil energy. A reported method comprises two-step reactions as follows: 1) lignocellulose-based carbonyl-containing platform compounds (such as levulinic acid, levulinate, acetone, hydroxyacetone, furfural and the like) and furan platform compounds (such as furan, methylfuran, hydroxymethyl furfuran and the like) are taken as raw materials on a solid acid catalyst and subjected to an acid catalysis alkylation reaction, and oxygen-containing organic compounds with the carbon chain length ranging from 8 to 16 are prepared; 2) hydrogenation and hydrodeoxygenation are performed on an alkylation product byuse of a metal-solid acid dual-function catalyst, so that biomass aviation kerosene or high-grade diesel which has the carbon chain length ranging from 8 to 16 and has higher energy density and stability is obtained. The two steps are integrated into one step innovatively in the invention, the reaction course is shortened, and the production efficiency is improved.

Description

technical field [0001] The present invention relates to a synthetic route of aviation kerosene and diesel chain hydrocarbons which is completely independent of fossil energy to obtain platform compounds based on lignocellulose as a raw material, specifically including two reactions: 1) starting from lignocellulose-based platform compounds through alkyl 2) The alkylation product is hydrodeoxygenated by a metal-solid acid bifunctional catalyst to obtain chain hydrocarbons as the main component with a carbon chain length of 8 to 16 16 biomass aviation kerosene and high-grade diesel. This patent reports the method that above-mentioned two reactions are realized in one pot (tank reactor) or one step (fixed bed reactor). Background technique [0002] Aviation kerosene is a liquid fuel in great demand in the world at present, and it is a strategic material of a country. There are many types of it, and it is generally composed of chain alkanes, aromatics and naphthenes with carbon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G1/00C10G3/00
CPCC10G1/002C10G3/50C10G2300/1014C10G2400/04Y02P30/20
Inventor 李广亿李宁张涛王爱琴王晓东丛昱
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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