Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Porous copper-based catalyst for preparing ethanol through carbon dioxide hydrogenation and preparation method thereof

A technology of carbon dioxide and porous copper, which is applied in the preparation of organic compounds, physical/chemical process catalysts, molecular sieve catalysts, etc., can solve the problems of no industrialization prospects, low activity and ethanol selectivity, expensive precious metals, etc., and achieve mild conditions , simple application method and low cost effect

Pending Publication Date: 2021-12-07
内蒙古鄂尔多斯电力冶金集团股份有限公司 +1
View PDF2 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Studies have shown that noble metal catalysts such as palladium and rhodium have good reaction performance for the hydrogenation of carbon dioxide to ethanol, but the high price of these noble metals makes them almost unsuitable for industrialization
Other studies have shown that copper-based catalysts also have higher performance than other catalyst systems for hydrogenation of carbon dioxide to ethanol, but their activity and ethanol selectivity are still low

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Porous copper-based catalyst for preparing ethanol through carbon dioxide hydrogenation and preparation method thereof
  • Porous copper-based catalyst for preparing ethanol through carbon dioxide hydrogenation and preparation method thereof
  • Porous copper-based catalyst for preparing ethanol through carbon dioxide hydrogenation and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] The preparation concentration is 0.15mol L -1 Cesium hydroxide solution; Weigh 6g Beta molecular sieve, disperse in 180mL prepared cesium hydroxide solution under the condition of 80℃ oil bath, stir for 30min; filter the suspension, wash the Beta molecular sieve after alkali treatment with deionized water , and then place it in a blast oven at 110°C for 12 hours;

[0053] Take by weighing 2.28g copper nitrate trihydrate, be dissolved in the deionized water of a certain amount (the water absorption of Beta type molecular sieve after 6g alkali treatment minus 0.51g), carry out equal volume impregnation to Beta type molecular sieve after alkali treatment; Beta-type molecular sieves were dried in a blast oven at 110°C for 12 hours, and then calcined in a muffle furnace at 450°C in an air atmosphere for 3 hours. The obtained samples were designated as Cu / Cs-Beta;

[0054] Under stirring conditions, 0.12g of aluminum sulfate octadecahydrate, 0.54g of silicon dioxide, 0.10g o...

Embodiment 2

[0057] According to the method of Example 1, only the alkali solution for processing Beta molecular sieves was changed to sodium hydroxide solution, and the 0.10 g of cesium hydroxide used for preparing the gel was changed to 0.03 g of sodium hydroxide, and other conditions remained unchanged.

Embodiment 3

[0059] According to the method of Example 1, only the alkali solution for processing Beta molecular sieves was changed to potassium hydroxide solution, and the 0.10 g of cesium hydroxide used for preparing the gel was changed to 0.04 g of potassium hydroxide, and the remaining conditions were unchanged.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a porous copper-based catalyst for preparing ethanol through carbon dioxide hydrogenation and a preparation method thereof, and belongs to the technical field of carbon dioxide resource utilization. The method comprises the following steps: dissolving a template agent and soluble salt of copper in a solvent, depositing on a molecular sieve by an equivalent-volume impregnation method, drying and roasting to obtain a loaded molecular sieve; reacting the loaded molecular sieve with a strong alkali solution, removing the template agent after the reaction, and drying to obtain a sample; mixing an aluminum source, a silicon source, strong alkali, a template agent and a sample to obtain a gel embedding body, and then performing aging and drying to obtain dry gel; and crystallizing the dry gel, and then performing washing, drying and roasting to obtain the copper-based catalyst. The catalyst disclosed by the invention is applied to preparation of ethanol by hydrogenation of carbon dioxide, has the characteristics of high specific surface area, low cost, high activity, high ethanol selectivity and high stability, and has a good application prospect.

Description

technical field [0001] The invention belongs to the technical field of resource utilization of carbon dioxide, and in particular relates to a porous copper-based catalyst for carbon dioxide hydrogenation to ethanol and a preparation method thereof, in particular to a molecular sieve-supported porous copper-based catalyst for carbon dioxide hydrogenation to ethanol and a method for synthesizing ethanol through catalytic hydrogenation of carbon dioxide. Background technique [0002] Ethanol is an important fuel and chemical. Carbon dioxide hydrogenation to ethanol technology, as an important part of carbon neutral technology, can not only solve environmental problems such as the greenhouse effect, but also effectively obtain high value-added products, which has important research and application value. The catalytic conversion of carbon dioxide hydrogenation to polycarbonate alcohols includes thermal catalysis, photocatalysis, electrocatalysis, etc., the core of which is the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B01J29/76B01J29/46B01J29/14C07C29/154C07C31/08
CPCB01J29/7615B01J29/146B01J29/46C07C29/154B01J2229/186C07C31/08
Inventor 宋旭东郭婷高磊罗莎边伟康
Owner 内蒙古鄂尔多斯电力冶金集团股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com