An In-Co-Zr composite catalyst, its preparation method and application
By controlling the molar ratio of In, Co, and Zr through an In-Co-Zr composite catalyst, an amorphous structure and active sites are formed, solving the problems of poor heat resistance and low activity of existing catalysts. This achieves high CO2 conversion and high methanol selectivity, and improves the yield of catalytic CO2 hydrogenation to methanol.
CN118454683BActive Publication Date: 2026-05-26SOUTH CHINA AGRICULTURAL UNIVERSITY
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SOUTH CHINA AGRICULTURAL UNIVERSITY
- Filing Date
- 2024-05-16
- Publication Date
- 2026-05-26
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Figure CN118454683B_ABST
Abstract
This invention discloses an In-Co-Zr composite catalyst, its preparation method, and its application, relating to the technical field of hydrogenation catalysts. The In-Co-Zr composite catalyst comprises an In₂O₃ support and an active component and structural promoter Zr supported on the In₂O₃ support, wherein the active component includes CoIn. x and Co3InC 0.75 The molar ratio of In, Co, and Zr in the composite catalyst is (1-9):(1.5-2.5):1. The In-Co-Zr composite catalyst exhibits a uniform distribution of active components and a high density of active sites. In the catalytic hydrogenation of CO2 to methanol, it can improve CO2 conversion while ensuring high methanol selectivity, and also possesses good heat resistance and anti-sintering properties. Under reaction conditions of 310℃, the CO2 conversion rate reaches 17.4% and the methanol selectivity reaches 77.7% during the catalytic hydrogenation of CO2 to methanol.
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