A bi-directional conversion method based on biogas
By employing a two-way biogas-based method of biogas conversion, and utilizing the combination of metal-supported nanocatalysts and regenerated gas, the problems of catalyst deactivation and low CNT purity were solved. This enabled in-situ catalyst regeneration and the preparation of high-purity CNTs, reducing process time and costs.
Patent Information
- Application Number
- CN202610721241.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-05-25
- Publication Date
- 2026-07-17
AI Technical Summary
In existing methane catalytic cracking processes, the catalyst deactivates rapidly and the CNT purity is low. The catalyst regeneration and CNT purification processes are separated, resulting in extended process time and increased costs.
A two-way conversion method based on biogas is adopted, which combines metal-supported nanocatalysts with periodically introduced regeneration gas to achieve in-situ regeneration of catalysts and purification of CNTs. The process includes steps such as impurity removal, concentration, cracking, regeneration and activation. The regeneration gas is used to selectively gasify amorphous carbon, release catalytic active sites and retain highly crystalline CNTs.
This approach enables efficient catalyst regeneration and high-purity CNT preparation, significantly improving product purity and reducing process time and costs.
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