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Preparation method of aviation kerosene or diesel

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

Active Publication Date: 2013-05-08
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Abstract
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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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  • Preparation method of aviation kerosene or diesel
  • Preparation method of aviation kerosene or diesel
  • Preparation method of aviation kerosene or diesel

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Experimental program
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Embodiment

[0036] 1. Preparation of catalyst:

[0037] 1) Preparation of solid acid catalyst: Nafion and Amberlyst resins are commercial catalyst products purchased directly.

[0038] 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 present invention relates to a novel synthetic route of a liquid chain hydrocarbon fuel totally independent of fossil energy based on a lignocellulose raw material to obtain a platform compound. The method includes three parts: 1) preparing oxygen-containing organic compounds with carbon chain length of 8-16 through the acid-catalyzed alkylation reaction by taking lignocelluloses-based carbonyl-containing platform compounds and furan platform compounds as raw materials on a novel solid catalyst; 2) effectively removing carbon-carbon double bonds and carbon-oxygen double bonds to prepare saturated oxygen-containing organic compounds by hydrogenation of the alkylated product; and 3) conducting hydrodeoxygenation for the hydrogenated alkylation product by using a metal-solid acid bifunctional catalyst to obtain the biomass aviation kerosene or high grade diesel fuel with the carbon chain length of 8-16 and having a high energy density and stability.

Description

technical field [0001] The present invention relates to a synthesis route of aviation kerosene and diesel chain hydrocarbons which is completely independent of fossil energy to obtain platform compounds based on lignocellulose, which specifically includes three steps: 1) starting from lignocellulose-based platform compounds through alkyl 2) Low-temperature hydrogenation of the above-mentioned alkylation reaction product by hydrogenation catalyst to reduce its unsaturation; 3) Metal-solid acid bifunctional catalyst Hydrodeoxygenation is carried out on the alkylation product after hydrogenation at a relatively high temperature, so as to obtain biomass aviation kerosene and high-grade diesel oil with chain hydrocarbon as the main component and a carbon chain length of 8 to 16. Wherein the second and third steps can also be combined into one step to complete. Background technique [0002] Aviation kerosene is a liquid fuel in great demand in the world at present, and it is a st...

Claims

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Application Information

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IPC IPC(8): C10G3/00
CPCY02E50/13Y02T50/678Y02E50/10Y02P30/20
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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