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Method for preparation of aviation kerosene and diesel oil from biomass derivative

A technology for aviation kerosene and biomass, which is applied in the petroleum industry, processing hydrocarbon oil, and liquid carbon-containing fuels, etc., and can solve the problems of hydrogenation or hydrodeoxygenation catalyst poisoning, equipment corrosion, etc.

Active Publication Date: 2013-12-18
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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  • Method for preparation of aviation kerosene and diesel oil from biomass derivative
  • Method for preparation of aviation kerosene and diesel oil from biomass derivative
  • Method for preparation of aviation kerosene and diesel oil from biomass derivative

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Embodiment

[0032] 1. Catalyst preparation:

[0033] 1) Preparation of solid acid catalyst: Nafion and Amberlyst resins are commercial catalyst products purchased directly.

[0034] 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. Sulfonated alumina is γ-Al 2 o 3 Mix with 2.5mol / L...

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Abstract

The invention relates to a new liquid chain hydrocarbon fuel synthetic route that acquires a platform chemical compound based on a lignocellulose raw material and is completely independent of fossil energy. The liquid fuel obtained by the method can be used as a substitute of aviation kerosene and diesel oil or as an additive for improving the cetane number and cold hardiness of fuels, thereby reducing the national dependence on imported petroleum in terms of liquid fuels. The method provided in the invention consists of two parts: 1) on a novel solid acid catalyst, an aldehyde group-containing compound (such as formaldehyde, acetaldehyde, propionaldehyde, and butyraldehyde, etc.) and a furan platform compound (such as furan, methyl furan, and hydroxylmethyl furan, etc.) undergo an acid catalyzed alkylation reaction to prepare an oxygen-containing organic compound with a carbon chain length of 8-16; and 2) hydrogenation and hydrodeoxygenation are conducted on an alkylation product to hydrogenate unsaturated bonds and remove the oxygen therein, thus preparing aviation kerosene or high grade diesel oil with a carbon chain length ranging from 8 to 16.

Description

technical field [0001] The present invention relates to a synthesis route of aviation kerosene and diesel chain hydrocarbons which is obtained from lignocellulose-based platform compounds and does not rely on fossil energy at all. Specifically, it includes two steps: 1) starting from lignocellulose-based platform compounds through alkanes Alkylation reaction to generate oxygen-containing organic compounds with a carbon chain length of 8 to 16; 2) Hydrodeoxygenation of the above-mentioned alkylation reaction product by a hydrodeoxygenation catalyst to obtain a chain hydrocarbon as a main component with a carbon chain length of 8 to 16 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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G69/12C10L1/04
Inventor 张涛李广亿李宁王爱琴王晓东丛昱
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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