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Method for preparation of diesel components by triglyceride hydrodeoxygenation

A triglyceride, hydrodeoxygenation technology, applied in the field of catalytic technology and renewable energy, can solve the problems of expensive metal catalysts, equipment corrosion environment, increased operating costs, etc., to achieve high selectivity of diesel components and easy operation Good performance and high utilization rate of raw materials

Active Publication Date: 2016-03-30
QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the sulfurized catalyst has high hydrodeoxygenation activity and good selectivity, the operating cost increases because the catalyst needs to be sulfurized, and the generated H 2 S will also cause corrosion of equipment and environmental pollution, and the reaction needs to be carried out under high temperature and high pressure, resulting in high energy consumption
In addition, the supported noble metal catalysts introduced in the literature Fuel94 (2012) 578-585 and Catal. scale application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Catalyst preparation:

[0016] Zn(NO 3 ) 2 , ZnCl 2 , Al(NO 3 ) 3 、Al 2 (SO 4 ) 3 Put urea and urea into a reaction kettle lined with polytetrafluoroethylene, add water to dissolve and react at 180°C for 3 hours, filter and wash the obtained product, dry at 110-120°C for 6-8 hours, and roast at 500°C for 4 hours. Zinc-aluminum composite oxide; Ni(NO 3 ) 2 The solution is impregnated on the above composite oxide, dried at 110-120°C for 6-8h, calcined at 400°C and then reduced with hydrogen at 500°C to obtain Ni / ZnO-Al 2 o 3 catalyst.

Embodiment 2

[0018] Zn(NO 3 ) 2 , ZnCl 2 , Al(NO 3 ) 3 、Al 2 (SO 4 ) 3 Put urea and urea into a reaction kettle lined with polytetrafluoroethylene, add water to dissolve and react at 180°C for 3 hours, filter and wash the obtained product, dry at 110-120°C for 6-8 hours, and roast at 500°C for 4 hours. Zinc-aluminum composite oxide; Ni(NO 3 ) 2 The solution is impregnated on the above composite oxide, dried at 110-120°C for 6-8h, calcined at 400°C and then reduced with hydrogen at 500°C to obtain Ni / ZnO-Al 2 o 3 catalyst.

Embodiment 3

[0020] Zn(NO 3 ) 2 , ZnCl 2 , Al(NO 3 ) 3 、Al 2 (SO 4 ) 3 Put urea and urea into a reaction kettle lined with polytetrafluoroethylene, add water to dissolve and react at 180°C for 3 hours, filter and wash the obtained product, dry at 110-120°C for 6-8 hours, and roast at 500°C for 4 hours. Zinc-aluminum composite oxide; Ni(NO 3 ) 2 The solution is impregnated on the above composite oxide, dried at 110-120°C for 6-8h, calcined at 400°C and then reduced with hydrogen at 500°C to obtain Ni / ZnO-Al 2 o 3 catalyst.

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PUM

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Abstract

The present invention belongs to the technical field of catalytic technology and renewable energy, and particularly relates to a method for preparation of diesel components by triglyceride hydrodeoxygenation. The method is as follows: the diesel components can be directly generated by liquid-phase catalytic triglyceride hydrodeoxygenation, wherein the triglyceride is a triglyceride with a C14-C18 fatty acid chain, the catalyst uses a zinc-aluminum composite oxide as a carrier, and nickel as an active component, and the nickel accounts for 2-15% by mass of the catalyst. The method has very high catalytic activity and diesel component selectivity of conversion of the triglyceride into the diesel components by hydrodeoxygenation. The catalyst is used in the method without vulcanization, the operation is easy and practical, the reaction system contains no sulfur, and the process does not produce toxic gases to pollute the environment. Meanwhile the reaction temperature is low, so that the method is a low energy consumption production process. The fatty acid chain contained in the triglyceride does not crack, and the raw material utilization rate and the diesel component high selectivity are high.

Description

technical field [0001] The invention belongs to the field of catalytic technology and renewable energy technology, and specifically relates to a method for preparing diesel oil components by hydrodeoxygenating triglycerides. Background technique [0002] With the depletion of non-renewable resources such as oil and coal, the energy crisis has become a common concern of all countries in the world, and finding and developing new renewable energy has become a top priority. Because biofuels are not limited by local natural conditions, and biomass raw materials are cheap and easy to obtain, they have broad application prospects and become a research hotspot worldwide. In recent years, my country is in an important period of accelerated industrialization and urbanization, and the gap between the increasing consumption of transportation fuels and the domestic supply is getting bigger and bigger. By 2020, my country's dependence on foreign oil will exceed 60%, and the growth rate o...

Claims

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Application Information

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IPC IPC(8): C10G3/00B01J23/80
CPCY02P30/20
Inventor 李学兵柳云骐李广慈陈磊郭鹏黄河
Owner QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI