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Catalyst for preparing 2,5-dimethylfuran through selective hydrogenolysis of 5-hydroxymethylfurfural and preparation method of catalyst

A technology of hydroxymethylfurfural and dimethylfuran, which is applied in the field of 5-hydroxymethylfurfural liquid-phase hydrogenolysis catalysts, can solve the problems of poor selectivity and low activity, and achieves high activity and selectivity, excellent catalytic performance, Low cost of raw materials

Active Publication Date: 2016-01-20
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with noble metal catalysts, existing non-noble metal or non-noble metal catalysts have problems such as low activity or poor selectivity

Method used

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  • Catalyst for preparing 2,5-dimethylfuran through selective hydrogenolysis of 5-hydroxymethylfurfural and preparation method of catalyst
  • Catalyst for preparing 2,5-dimethylfuran through selective hydrogenolysis of 5-hydroxymethylfurfural and preparation method of catalyst
  • Catalyst for preparing 2,5-dimethylfuran through selective hydrogenolysis of 5-hydroxymethylfurfural and preparation method of catalyst

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Experimental program
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Effect test

Embodiment 1

[0047] Take 20ml of distilled water, add 2.52g of tartaric acid under stirring, then add 1.819g of Co(NO 3 ) 2 ·6H 2 O and 0.53gCu(NO 3 ) 2 ·3H 2 0, then add 60ml glycerin aqueous solution (glycerin:water=4:1, volume ratio) and 5.0g polyethylene glycol PEG6000, then add 0.5g nano-graphite carbon, after stirring evenly, place in the hydrothermal kettle 150 ℃ and keep warm for 13h, After the obtained solid was dried, it was transferred to a tube furnace and calcined at 800° C. for 2.0 h under argon to obtain a catalyst marked as Cu-Co / C, wherein the content of Co was 30.7 wt%, and the content of Cu was 12.0 wt%.

[0048] figure 2 The powder diffraction pattern of the Cu-Co / C catalyst shown shows that the active metals cobalt and copper are both in reduced state.

Embodiment 2

[0050] Take 20ml of distilled water, add 2.50g of tartaric acid under stirring, then add 1.819g of Co(NO 3 ) 2 ·6H 2 O and 0.606gNi(NO 3 ) 2 ·6H 2 0, then add 60ml glycerin aqueous solution (glycerin: water = 4:1, volume ratio) and 5.0g polyethylene glycol PEG6000, then add 0.5g nano-graphite carbon, after stirring evenly, place in a hydrothermal kettle at 150°C for 13h, After the obtained solid was dried, it was transferred to a tube furnace and calcined at 800° C. for 2.0 h under argon to obtain a catalyst marked as Ni-Co / C, wherein the content of Co was 29.7 wt%, and the content of Zn was 11.9 wt%.

Embodiment 3

[0052] Take 20ml of distilled water, add 2.50g of tartaric acid under stirring, then add 1.819g of Co(NO 3 ) 2 ·6H 2 O and 0.284g ZnCl 2 , then add 60ml of glycerin aqueous solution (glycerin: water = 4:1, volume ratio) and 5.0g of polyethylene glycol PEG6000, then add 0.5g of nano-graphite carbon, stir evenly, place in a hydrothermal kettle at 150°C for 13h, and obtain After the solid was dried, it was transferred to a tube furnace and calcined at 800° C. for 2.0 h under argon to obtain a catalyst marked as Zn-Co / C, wherein the content of Co was 30.5 wt%, and the content of Zn was 11.7 wt%.

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Abstract

The invention discloses a catalyst for preparing 2,5-dimethylfuran through selective hydrogenolysis of 5-hydroxymethylfurfural and a preparation method of the catalyst. The catalyst consists of a catalyst carrier and carbon layer coated reactive metals, wherein the catalyst carrier comprises a carbon-based carrier, SiO2, TiO2 or Al2O3 and the like; and the reactive metals are selected from Co, Fe, Ni, Cu or Zn and other base metals. Compared with the conventional catalyst system, the catalyst disclosed by the invention has the advantages that (1) the reactive metal of the catalyst refers to a first transition metal, and the raw materials are cheap and readily available; (2) compared with a noble metal catalyst, the catalyst disclosed by the invention has extremely high activity and selectivity; and (3) the catalyst has magnetism and is easy to recycle.

Description

technical field [0001] The present invention relates to the field of 5-hydroxymethylfurfural liquid-phase hydrogenolysis catalyst, and furthermore, relates to a catalyst for preparing 2,5-dimethylfuran by liquid-phase hydrogenolysis of 5-hydroxymethylfurfural and its preparation method. Background technique [0002] With the depletion of petrochemical resources and the rising global greenhouse gas emissions, the use of renewable biomass resources to produce fuels and chemicals is one of the important issues of global sustainable development. 2,5-Dimethylfuran (DMF) is a biomass fuel and organic chemical intermediate converted from renewable cellulose, which has excellent properties similar to gasoline, such as higher energy density (DMF : 30MJ / L; gasoline: 31MJ / L), higher octane number (DMF: 119; gasoline: 95.8), and easy miscibility with gasoline, while common biofuel ethanol is easily soluble in water, difficult to preserve, and has low combustion performance , so 2,5-di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/75B01J23/755B01J23/80B01J23/89C07D307/36
Inventor 陈兵峰袁国卿李峰波黄志军
Owner INST OF CHEM CHINESE ACAD OF SCI
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