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Cu-Ni bimetallic catalyst with charcoal being carrier and application of Cu-Ni bimetallic catalyst

A bimetallic catalyst and biochar technology, applied in the direction of metal/metal oxide/metal hydroxide catalyst, physical/chemical process catalyst, organic chemistry, etc., can solve the problem of few reports on catalyst carrier and achieve cheap raw materials , saving resources and protecting the natural environment

Pending Publication Date: 2020-02-18
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, research reports on biochar at home and abroad mainly focus on catalysts, energy storage and environmental protection, while there are few reports on the use of biochar as a catalyst carrier.

Method used

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  • Cu-Ni bimetallic catalyst with charcoal being carrier and application of Cu-Ni bimetallic catalyst
  • Cu-Ni bimetallic catalyst with charcoal being carrier and application of Cu-Ni bimetallic catalyst
  • Cu-Ni bimetallic catalyst with charcoal being carrier and application of Cu-Ni bimetallic catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A kind of biochar is the Cu-Ni bimetallic catalyst of carrier, is prepared by following steps:

[0031] (1) Under magnetic bar stirring, 2.0 g of α-cellulose and 20.0 g of 1-butyl-3-methylimidazolium chloride ([BMim]Cl) were mixed in a flask, and then the mixture was placed in an oil bath While heating in medium temperature, add 12.0 mL of concentrated H2 dropwise with an acid burette 2 SO 4 Until the temperature rose to 150° C., after 15 h, the prepared sample was filtered through a millipore filter (0.22 μm pore size), and washed with deionized water until the filtrate was neutral. Finally, the samples were vacuum-dried overnight at 60 °C to obtain biochar precursors.

[0032] (2) In a tube furnace, the biochar precursor obtained in step (1) was carbonized at 600 °C for 3 h (heating rate 3 °C / min) by nitrogen gas flow (purity ≥ 99.9%), and then heated at room temperature with The pyrolyzed biochar was washed with ethanol to remove the tar generated during pyrolysis...

Embodiment 2

[0046] A kind of biochar is the Cu-Ni bimetallic catalyst of carrier, is prepared by following steps:

[0047] (1) Mix 3.0 g of α-cellulose with 20.0 g of 1-butyl-3-methylimidazolium chloride ([BMim]Cl) in a flask under stirring with a magnetic bar, and then place the mixture in an oil bath While heating in medium temperature, add 18.0 mL of concentrated H2 dropwise with an acid burette 2 SO 4 After the temperature rose to 150° C., after 15 h of reaction, the prepared sample was filtered through a millipore filter (0.22 μm pore size), and washed with deionized water until the filtrate was neutral. Finally, the samples were vacuum-dried overnight at 60 °C to obtain biochar precursors.

[0048] (2) In a tube furnace, the biochar precursor obtained in step (1) was carbonized at 500 °C for 4 h (heating rate was 3 °C / min) through nitrogen gas flow (purity ≥ 99.9%), and then heated at room temperature with The pyrolyzed biochar was washed with ethanol to remove the tar generated ...

Embodiment 3

[0051] A kind of biochar is the Cu-Ni bimetallic catalyst of carrier, is prepared by following steps:

[0052] (1) Under magnetic bar stirring, 2.0 g of α-cellulose and 20.0 g of 1-butyl-3-methylimidazolium chloride ([BMim]Cl) were mixed in a flask, and then the mixture was placed in an oil bath While heating in medium temperature, add 12.0 mL of concentrated H2 dropwise with an acid burette 2 SO 4 After the temperature rose to 160° C., after 15 h of reaction, the prepared sample was filtered through a millipore filter (0.22 μm pore size), and washed with deionized water until the filtrate was neutral. Finally, the samples were vacuum-dried overnight at 60 °C to obtain biochar precursors.

[0053] (2) In a tube furnace, the biochar precursor obtained in step (1) was carbonized at 700 °C for 3 h (heating rate was 3 °C / min) through nitrogen gas flow (purity ≥ 99.9%), and then heated at room temperature with The pyrolyzed biochar was washed with ethanol to remove the tar gener...

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Abstract

The invention discloses a Cu-Ni bimetallic catalyst with charcoal being a carrier and application of the Cu-Ni bimetallic catalyst. The Cu-Ni bimetallic catalyst is prepared through the steps that (1)under a stirring condition, alpha-cellulose and an ionic liquid are heated after being mixed, then concentrated H<2>SO<4> is added till the temperature of the mixture is increased, a reaction is performed for 10-20h, and then a charcoal precursor is obtained after filtering, washing and drying; (2) the charcoal precursor is carbonized in a nitrogen atmosphere, washed and dried, and then the charcoal is obtained; and (3) copper salt and nickel salt are sequentially dissolved in water and uniformly mixed, the charcoal is added for stirring impregnation, an impregnated sample is vacuum-dried andcalcined in the nitrogen atmosphere, and then reduction is performed in the nitrogen atmosphere to obtain the Cu-Ni bimetallic catalyst with the charcoal being the carrier. According to the method ofpreparing the Cu-Ni bimetallic catalyst with the charcoal being the carrier, cellulose originating from biomass is used as a raw material, and the raw material is low in price and wide in source.

Description

technical field [0001] The invention relates to the technical field of catalysts, in particular to a Cu-Ni bimetallic catalyst with biochar as a carrier and an application thereof. Background technique [0002] With the increasingly prominent energy and environmental issues, the development of renewable new energy has become a top priority. Because of its cheapness, renewability and low pollution, the new technology of preparing fuel oil and fine chemicals from biomass resources has attracted extensive attention at home and abroad. [0003] Among biomass, cellulose is the most abundant biomass resource in nature, and it mainly comes from plants and agricultural and forestry wastes. In addition to the direct preparation of biochar (biochar, BC) and other materials from cellulose, 5-hydroxymethylfurfural (5-hydroxymethylfurfural, HMF) derived from cellulose hydrolysis is an important furan derivative. Bio-based platform compounds for the production of various chemicals and h...

Claims

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Application Information

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IPC IPC(8): B01J23/755C07D307/36C07D307/46
CPCB01J23/755C07D307/36C07D307/46
Inventor 刘琪英朱长辉王海永吴小平辛浩升修忠勋马隆龙王晨光
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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