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Applications of hydrodeoxygenation catalyst in synthesis of renewable diesel fuel or aviation kerosene

A technology for deoxidation catalyst and regenerated diesel oil, applied in metal/metal oxide/metal hydroxide catalyst, physical/chemical process catalyst, refined hydrocarbon oil, etc., can solve the problem of high reaction temperature, achieve good selectivity and excellent operation process Simple, solvent-free effect

Active Publication Date: 2015-06-17
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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AI Technical Summary

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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  • Applications of hydrodeoxygenation catalyst in synthesis of renewable diesel fuel or aviation kerosene
  • Applications of hydrodeoxygenation catalyst in synthesis of renewable diesel fuel or aviation kerosene
  • Applications of hydrodeoxygenation catalyst in synthesis of renewable diesel fuel or aviation kerosene

Examples

Experimental program
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Embodiment

[0026] 1. Preparation of catalyst:

[0027] (1) Immersion method: Prepare a nickel nitrate solution with a mass concentration of 10%, dilute it according to the saturated water absorption of the carrier, add one of commercial silica and ordered mesoporous silica SBA-15, and then let it stand 2 hours, dry overnight at 120°C, air roast at 500°C for 2 hours, and reduce with hydrogen for 2 hours at 500°C, after the temperature drops to room temperature, feed 1% O 2 / N 2 Passivation can prepare nickel catalysts supported by different carriers (see Table 1, Examples 1 and 2).

[0028] Prepare palladium chloride, ruthenium chloride, chloroplatinic acid, chloroiridic acid, rhodium chloride, nickel nitrate, cobalt nitrate, copper nitrate, iron nitrate solution with a mass ratio of 10%, and add one of them to the commercial Silica, then let it stand for 2 hours, dried overnight at 120°C, calcined in air at 500°C for 2 hours, and reduced with hydrogen at 500°C for 2 hours, after the te...

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Abstract

The present invention relates to a new method for preparing diesel fuel or aviation kerosene range hydrocarbons by using isophorone, 3,3,5-trimethyl cyclopentanol, 3,3,5-trimethyl cyclopentanone, 2-ethyl-2-hexenal, 2-ethyl-2-hexanol, 2-ethyl-2-hexanal, fatty acids, fatty acid methyl (or ethyl) esters, a biomass fatty acid triglyceride and other oxygen-containing organic compounds obtained from biomasses as raw materials through a hydrodeoxygenation reaction. According to the present invention, the direct low-temperature hydrodeoxygenation of the biomass oxygen-containing organic compound under the solvent-free condition is achieved, and a series of the high-yield chain alkanes or cycloalkanes having the diesel fuel or aviation kerosene chain length range are obtained; and the catalyst of the present invention has characteristics of no requirement of solvent, simple operation process, mild reaction conditions, good aviation kerosene (or diesel fuel) selectivity, and the like, and is the ideal catalyst for preparation of the diesel fuel or aviation kerosene range hydrocarbon fuels through the hydrodeoxygenation of the biomass oxygen-containing organic compound.

Description

technical field [0001] The invention relates to a new method for preparing hydrocarbons in aviation kerosene range by hydrodeoxygenating oxygen-containing organic compounds obtained from biomass as raw materials. Using supported metal-silica catalysts, the direct hydrodeoxygenation of biomass aviation kerosene precursors under mild solvent-free conditions was achieved, and a series of hydrocarbons with chain lengths of aviation kerosene (or diesel) were obtained in high yield. Compared with the existing hydrodeoxygenation method, the method has the advantages of no solvent, simple operation process, low energy consumption, low cost and the like. 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 current common JP-8 as an example...

Claims

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Application Information

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IPC IPC(8): C10G45/04C10G45/08C10G45/10B01J23/755B01J23/42B01J23/44B01J23/46B01J23/745B01J23/75B01J23/72B01J23/89
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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