A low-temperature high-activity supported Ru-based catalyst, a preparation method and application thereof
CN120984259BActive Publication Date: 2026-08-28NANCHANG UNIV
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Patent Information
- Application Number
- CN202511516687.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-23
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2045-10-23
AI Technical Summary
Technical Problem
然而，从动力学角度，由于CO2分子具有很高的化学稳定性，其活化加氢转化为甲烷的动力学势垒很高，因此研制低温下具有高活性的甲烷化催化剂仍然面临巨大挑战
Benefits of technology
1、本发明通过优化MnO载体与Ru活性组分的协同作用，在180℃的低温和36000mL·g-1·h-1高空速条件下，实现了高达94.9%的CO2转化率和100%的选择性，突破了现有催化剂低温活性不足的瓶颈；同时，该催化剂展现出卓越的长期稳定性，在180℃下连续运行100小时后，CO2转化率衰减小于0.5%，且
选择性始终保持100%，为工业化应用奠定了坚实的耐久性基础。
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Abstract
The application provides a low-temperature high-activity supported Ru-based catalyst, a preparation method and application, the method is characterized in that a manganese oxide carrier is synthesized by a precipitation method, the manganese oxide carrier is loaded by a deposition precipitation method, and a supported Ru-based catalyst is obtained. ‑1 ·h ‑1 Under high space velocity conditions, a CO2 conversion rate of 94.9% and a selectivity of 100% are achieved, the bottleneck of insufficient low-temperature activity of existing catalysts is broken through; meanwhile, the catalyst exhibits excellent long-term stability, after continuous operation for 100 hours at 180 DEG C, the CO2 conversion rate attenuation is less than 0.5%, and the selectivity is always kept at 100%, laying a solid durability foundation for industrial application.
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