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Method for preparing diesel hydrocarbons from vegetable fat through catalytic hydrogenation and deoxygenation

A vegetable oil, catalytic hydrogenation technology, applied in the preparation of liquid hydrocarbon mixtures, petroleum industry, biological raw materials, etc., can solve the problems of restrictions, high prices, limited reserves, etc., achieve reduced production costs, low boiling point, and avoid production costs the increased effect of

Inactive Publication Date: 2010-12-01
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such catalysts are limited in large-scale industrial applications due to their high price and limited reserves.

Method used

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  • Method for preparing diesel hydrocarbons from vegetable fat through catalytic hydrogenation and deoxygenation
  • Method for preparing diesel hydrocarbons from vegetable fat through catalytic hydrogenation and deoxygenation
  • Method for preparing diesel hydrocarbons from vegetable fat through catalytic hydrogenation and deoxygenation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Add 0.2g of Mo2C / AC catalyst, 1.0g of sunflower oil and 20mL of n-hexane into a 100mL reactor, fill it with hydrogen, start stirring and heating at an initial hydrogen pressure of 2.5MPa, stop the reaction after 10 hours at 270°C, and wait to cool to After room temperature, the catalyst was separated by filtration to obtain clear and transparent diesel hydrocarbons. Quantitative detection of the product by high-performance liquid chromatography and gas chromatography shows that the conversion rate of the raw material sunflower oil can reach 97%, and the total output of diesel hydrocarbons is 0.61g.

[0036] The product composition is shown in the table below:

[0037]

Embodiment 2

[0039] Add 0.4g of Mo2C / AC catalyst, 2.0g of olive oil and 30mL of n-octane into a 100mL reactor, fill it with hydrogen, start stirring and heating at an initial hydrogen pressure of 4.0MPa, and stop the reaction at 320°C for 6 hours, and wait to cool to After room temperature, the catalyst was separated by filtration to obtain clear and transparent diesel hydrocarbons. Quantitatively detect the product by high performance liquid chromatography and gas chromatography respectively, it can be seen that the conversion rate of the raw material olive oil can reach 100%, and the total output of diesel oil hydrocarbons is 1.44g.

[0040] The product composition is shown in the table below:

[0041]

Embodiment 3

[0043] Add 0.25g of Mo2C / AC catalyst, 1.5g of corn oil and 25mL of n-heptane into a 100mL reactor, fill it with hydrogen, start stirring and heating at an initial hydrogen pressure of 2.5MPa, stop the reaction after 8 hours at 290°C, and wait to cool to After room temperature, the catalyst was separated by filtration to obtain clear and transparent diesel hydrocarbons. Quantitative detection of the product by high-performance liquid chromatography and gas chromatography respectively shows that the conversion rate of raw material corn oil can reach 100%, and the total output of diesel hydrocarbons is 1.00g.

[0044] The product composition is shown in the table below:

[0045]

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PUM

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Abstract

The invention discloses a method for preparing diesel hydrocarbons from vegetable fat through catalytic hydrogenation and deoxygenation, is a method for preparing alkane with a high calorific value from vegetable fat through catalytic hydrogenation and deoxygenation, and adopts a one-pot method reaction process, comprising the following steps: adding a molybdenum carbide catalyst, vegetable fact and solvent in a reactor, filling hydrogen in the reactor, stirring and heating, reacting for 3-10h with the reaction pressure of 1-10MPa and the reaction temperature of 250-350 DEG C, stopping reaction, cooling to room temperature, filtering and separating the catalyst out to obtain the diesel hydrocarbons with alkane at a high calorific value. By adopting the technical scheme in the invention, the method has low production cost and high product combustion value, is favor of large-scale industrialized popularization and is a clean and regenerative diesel alternative fuel.

Description

technical field [0001] The present invention relates to a method based on catalytic hydrodeoxygenation of vegetable fats and oils to produce diesel hydrocarbons, more specifically, to a method based on non-noble metal-based catalysts to prepare diesel hydrocarbons by catalytic hydrodeoxygenation of vegetable fats and oils Background technique [0002] With the sustained and rapid development of my country's national economy, the demand for liquid fuels has grown rapidly. It is estimated that by 2020, my country's oil supply gap will reach 250 million tons, and the dependence on foreign oil will reach 54%. The development of liquid fuels with sustainable sources to replace petroleum is of great significance to alleviate the current situation of my country's oil shortage, and to ensure my country's energy security and sustainable development of the national economy. It is a long-term major demand for my country in the future. Animal and vegetable oils are a class of substances...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G3/00
CPCY02E50/13Y02E50/10Y02P30/20
Inventor 楼辉韩军兴李望孙辉丁宇琦段谨钊郑小明
Owner ZHEJIANG UNIV
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