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Method for preparing cycloparaffin as aviation kerosene or diesel oil by biomass route

A technology of aviation kerosene and biomass, applied in the petroleum industry, processing hydrocarbon oil, hydrocarbon oil treatment products, etc., can solve the problem of high reaction temperature

Active Publication Date: 2015-06-17
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

However, these methods still require high reaction temperatures (350°C) or acidic carriers in the hydrodeoxygenation step.

Method used

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  • Method for preparing cycloparaffin as aviation kerosene or diesel oil by biomass route
  • Method for preparing cycloparaffin as aviation kerosene or diesel oil by biomass route
  • Method for preparing cycloparaffin as aviation kerosene or diesel oil by biomass route

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Embodiment

[0031] 1. Preparation of catalyst:

[0032] 1) Preparation of solid acid catalyst: Nafion and Amberlyst resins are commercial catalyst products purchased directly.

[0033] The activated carbon used in the present invention is pretreated by soaking 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 24 hours, filter it, and wash it with 80°C hot water Wash several times, then wash to neutral with deionized water, and dry 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 10 hours, and then dried at 400 °C for 4 hours. Sulfonated alumina is mixed with γ-Al2O3 and 2.5m...

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Abstract

The invention relates to a novel cycloparaffin fuel synthesis route which utilizes a platform chemical compound raw material prepared from lignocellulose and is completely independent of fossil energy. The liquid fuel produced by the method can be used as an aviation kerosene or diesel oil substitute or as an additive for improving fuel cetane number and cold resistance so that through the liquid fuel, a degree of dependence on liquid fuel import is reduced. The method comprises that 1, on a novel solid acid catalyst, cyclopentanone and a furan platform chemical compound (such as fura, methyl furan and hydroxyl methyl furan) prepared from lignocellulose are used as raw materials and undergo an acid catalytic alkylation reaction to produce an oxygen-containing organic compound with carbon chain length of 8-21, and 2, the alkylation product is subjected to hydrogenation deoxidation by a metal-solid acid double function catalyst so that the cycloparaffin which has carbon chain length of 8-21, has high energy density and stability and is suitable as biomass aviation kerosene or high-grade diesel oil is obtained.

Description

technical field [0001] The present invention relates to a synthesis route of aviation kerosene and diesel naphthenes which uses lignocellulose as a raw material to obtain a platform compound as a raw material and does not rely on fossil energy at all. It specifically includes two steps: 1) Starting from a lignocellulose-based platform compound, through The alkylation reaction produces oxygen-containing organic compounds with a carbon chain length of 8 to 21; 2) The alkylation product is hydrodeoxygenated by a metal-solid acid bifunctional catalyst to obtain cycloalkanes as the main component with a carbon chain length of 8 to 21 biomass aviation kerosene and high-grade diesel. 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 numbers between 8 and 16. Taking the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G69/02
CPCC10G69/02C10G2300/1011C10G2400/04
Inventor 李宁李广亿张涛王爱琴王晓东丛昱
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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