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Catalyst for synthesizing higher alcohols from sugars in aqueous phase

A water-phase catalyzed sugar and catalyst technology, applied in physical/chemical process catalysts, catalyst activation/preparation, preparation of organic compounds, etc., can solve problems such as easy water absorption, insufficient vehicle power, low calorific value, etc., and achieve hydrothermal stability. High performance, long service life and high catalytic activity

Active Publication Date: 2020-11-06
广州科创新能源有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ethanol gasoline is easy to absorb water, has a low calorific value, and insufficient power for vehicles burning ethanol gasoline, which hinders the application of ethanol gasoline, and the prospect is not optimistic

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0020] Implementation Case 1: First prepare a catalyst for the synthesis of higher alcohols from sugars in water phase:

[0021] Dry 1000g of hydrotalcite-like two-dimensional layered material LDHs at a temperature of 120°C for 24 hours, and then place it in a vacuum container to evacuate for 3 hours; at the same time, prepare a glucose solution with a concentration of 10wt%; then place the prepared 10wt% glucose solution The solution was evenly sprayed on the surface of the hydrotalcite-like two-dimensional layered material LDHs, and stood at room temperature for 5 hours; then the obtained hydrotalcite-like two-dimensional layered material LDHs impregnated with a 10wt% concentration of glucose solution was placed under the condition of oxygen isolation. LDHs@C material was obtained after high temperature carbonization at 1300°C for 10 hours and then rapidly lowered to room temperature;

[0022] Spray the ammonium molybdate solution onto the LDHs@C material, dry at 80°C for 1 ...

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PUM

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Abstract

The invention relates to the technical field of catalytic materials, and in particular relates to a catalyst for catalyzing a sugar to synthesize a higher alcohol in a water phase. The catalyst is a supported bifunctional catalyst and comprises a carrier and an active component, the carrier is carbon-intercalated hydrotalcite-like two-dimensional layered material LDHs@C, and the active component is a complex of Ru and MoOx. The catalyst for catalyzing the sugar to synthesize the higher alcohol in the water phase disclosed by the invention is used to catalyze sugar molecules in a sugar solutionto perform a repeated dehydration hydrogenation reaction to prepare a pentanol and hexanol product under the conditions of the temperature of 150-280 DEG C and the hydrogen pressure of 3-8MPa, the sugar conversion rate is up to 99%, the total yield of the hexanol and the pentanol is up to 72%, and a low-cost green high-efficiency method is provided for production of the biological higher alcohols.

Description

technical field [0001] The invention relates to the technical field of catalytic materials, in particular to a catalyst for catalyzing the synthesis of higher alcohols from sugars in water phase. Background technique [0002] Biomass is the only carbon resource in renewable energy that can produce liquid fuels and chemicals. Lignocellulosic biomass resources such as agricultural and forestry wastes are very rich, which can be converted into various products such as alcohols, ethers and hydrocarbons through gasification synthesis technology, but the carbon chain distribution of gasification Fischer-Tropsch synthesis technology products is wide, and the crude Oil still needs to be distilled and cut to separate different fractions. The technical route is long, and it is difficult to be economical on a small scale. Lignocellulose can be hydrolyzed and fermented to produce fuel ethanol, but ethanol fermentation strains have not yet achieved efficient conversion of five-carbon su...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/652B01J37/02B01J37/08C07C31/125C07C29/00
CPCB01J23/6525B01J37/0203B01J37/084B01J37/088C07C29/00C07C31/125
Inventor 王铁军陈作义
Owner 广州科创新能源有限责任公司