Invention Publication
- Patent Title: STABLE CATALYST FOR CARBON DIOXIDE TO METHANOL CONVERSION AND PROCESS OF CONVERSION THEREOF
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Application No.: US18537124Application Date: 2023-12-12
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Publication No.: US20240189800A1Publication Date: 2024-06-13
- Inventor: Pavan Naganath DONGAPURE , Jyoti Rajesh TEKAWADIA , Radhamonyammma Nandini DEVI
- Applicant: COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH
- Applicant Address: IN New Delhi
- Assignee: COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH
- Current Assignee: COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH
- Current Assignee Address: IN New Delhi
- Priority: IN 2211071788 2022.12.12
- Main IPC: B01J23/80
- IPC: B01J23/80 ; B01J21/04 ; B01J21/06 ; B01J35/30 ; B01J37/02 ; B01J37/04 ; B01J37/08 ; B01J37/18 ; C07C29/156

Abstract:
The present disclosure is directed to a catalyst for carbon dioxide to methanol conversion comprising: 1-10 wt % of Nickel; 5-15 wt % of Zinc; and 80-95 wt % of metal oxide, wherein the wt % is based on the total weight of the catalyst. The present disclosure also provides a method for preparation of a catalyst for carbon dioxide to methanol conversion comprising: i) dissolving 1-10 wt % nickel precursor and 5-15 wt % zinc precursor in a solvent to obtain a first mixture; ii) adding 80-95 wt % metal oxide in the first mixture as obtained in step (a) to obtain a second mixture; iii) evaporating the solvent from the second mixture as obtained in step (b), drying and calcining in air at a temperature in the range of 350° C. to 500° C. for a period in the range of 2 hr to 4 hrs to obtain calcined mixture; and iv) reducing the calcined mixture as obtained in step (c) under hydrogen atmosphere at a temperature in the range of 500° C. to 700° ° C. for a period in the range of 1 hr to 3 hrs to obtain the catalyst. The disclosure also provides a low pressure process for conversion of carbon dioxide to methanol.
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