Catalyst for synthesizing methanol through hydrogenation of carbon dioxide

A technology for carbon dioxide and methanol synthesis, applied in the field of energy chemistry, can solve the problems of high price of metal Pd, difficult industrial process, sintering deactivation, etc., and achieve the effects of good environmental value, low production cost, and easy control of conditions

Active Publication Date: 2020-02-25
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
View PDF9 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although many catalysts have been used for CO 2 In the process of hydrogenation to methanol, common CO 2 Hydrogenation catalysts mainly include Cu-based catalysts, Pd-based catalysts, and some recently reported new catalysts, among which Cu-based catalysts are mainly Cu / ZnO / Al 2 o 3 (Kattel et al., Science 355, 1296–1299 (2017)), Cu / ZrO 2 (Larmier et al., Angew.Chem.129, 2358–2363 (2017)), etc., but this type of catalyst is easily affected by water in the reaction atmosphere and deactivated by sintering; Pd-based catalysts such as Pd / ZnO (Liao et al. al., Green Chem.19, 270–280(2017)), Pd / In 2 o 3 (Rui et al.,Applied Catalysis B:Environmental.218,488-497(2017)), etc., due to the high price of metal Pd, it is difficult to use in industrial processes
Molybdenum disulfide has been widely used in the process of hydrodesulfurization (HDS) due to its excellent anti-sulfur properties and cheap and easy-to-obtain characteristics. not reported

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
  • Catalyst for synthesizing methanol through hydrogenation of carbon dioxide
  • Catalyst for synthesizing methanol through hydrogenation of carbon dioxide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] 1. Seal 20ml aqueous solution of 0.73mmol ammonium molybdate and 10ml carbon disulfide into a 40ml autoclave under nitrogen protection;

[0019] 2. Keep the autoclave in (1) at 400°C for 4 hours to obtain a sample solution;

[0020] 3. Treat the sample solution obtained in (2) with 30% (mass concentration) ammonia solution for 3 hours, then wash with water and ethanol several times respectively and suction filter to obtain the sample;

[0021] 4. Dry the sample obtained in (3) at 100° C. for 12 hours to obtain a catalyst Cat1 sample.

[0022] For the convenience of comparison, the application evaluation conditions and results of the carbon dioxide to methanol application of the catalyst are summarized in the application example, and the evaluation results are listed in Table 1.

Embodiment 2

[0024] 1. Seal 0.73mmol ammonium molybdate and 10ml carbon disulfide into a 40ml autoclave under nitrogen protection;

[0025] 2. Keep the autoclave in (1) at 400°C for 4 hours to obtain a sample solution;

[0026] 3. Dissolve the sample solution obtained in (2) in 6mol L -1 The NaOH solution was treated for 3 hours, then washed with water and ethanol several times and suction filtered to obtain the sample;

[0027] 4. Dry the sample obtained in (3) at 100° C. for 12 hours to obtain a catalyst Cat2 sample.

[0028] For the convenience of comparison, the application evaluation conditions and results of the carbon dioxide to methanol application of the catalyst are summarized in the application example, and the evaluation results are listed in Table 1.

Embodiment 3

[0030] 1. Dissolve 1mmol ammonium molybdate and 30mmol thiourea in 35ml water, and seal it into a 100ml reaction kettle under nitrogen protection;

[0031] 2. Keep the reaction kettle in (1) at 200°C for 24 hours to obtain a sample solution;

[0032] 3. Dissolve the sample solution obtained in (2) in 6mol L -1 The KOH solution was treated for 3 hours, then washed with water and ethanol several times and suction filtered to obtain the sample;

[0033] 4. Dry the sample obtained in (3) at 100° C. for 12 hours to obtain a catalyst Cat3 sample.

[0034] For the convenience of comparison, the application evaluation conditions and results of the carbon dioxide to methanol application of the catalyst are summarized in the application example, and the evaluation results are listed in Table 1.

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 relates to a catalyst for synthesizing methanol through hydrogenation of carbon dioxide. A purpose of the invention is mainly to solve the problems of low activity and low selectivity ofthe catalyst for preparing methanol through hydrogenation of carbon dioxide in the prior art. According to the invention, molybdenum disulfide is used as the main component of the catalyst for synthesizing methanol through hydrogenation of carbon dioxide, so the catalyst has characteristics of low price, simple and convenient operation, high carbon dioxide conversion rate, high selectivity of methanol in a product, good stability and the like.

Description

technical field [0001] The invention relates to a molybdenum disulfide catalyst and its application in carbon dioxide hydrogenation to synthesize methanol, belonging to the field of energy chemistry. Background technique [0002] CO 2 As a kind of greenhouse gas, with the development of science and technology and industry, its emission is increasing, which leads to more and more serious greenhouse effect and greater impact on the environment. Therefore, reducing CO 2 emissions and use efficient materials to capture and transform CO 2 is crucial. Governments around the world are trying to solve CO by increasing investment 2 The problem lies mainly in two aspects: reducing CO from the source 2 emissions; capture and convert CO 2 It is an industrial product with high added value. While using a catalytic process to convert CO 2 converted into some hydrocarbons or hydrocarbon oxygen compounds, which can reduce atmospheric CO 2 It is a current research hotspot to alleviat...

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
Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/22B01J27/051B01J29/00C07C29/153C07C31/04
CPCB01J27/051B01J27/224B01J29/00C07C29/153C07C31/04Y02P20/52
Inventor 邓德会胡景庭邓浇成康王野张庆红苏海燕包信和
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap