An autothermal catalytic reactor for the conversion of the co 2 contained in biogas and hydrogen into renewable natural gas
The autothermal catalytic reactor with microcatalysts and optimized insulation addresses the economic feasibility issue of low-to-medium capacity plants by simplifying temperature control and eliminating external cooling, achieving efficient CO2 conversion to renewable natural gas.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- NATURGY INNOVAHUB S L U
- Filing Date
- 2025-12-10
- Publication Date
- 2026-06-18
AI Technical Summary
Existing reactor designs for converting CO2 in biogas to renewable natural gas are economically unfeasible for low-to-medium capacity plants due to high capital and operating expenses from complex heat integration systems, which are not justified by their relatively low heat output, making them unaffordable for decentralized biogas operations.
An autothermal catalytic reactor design that utilizes microcatalysts, such as nickel-cerium oxide-aluminium oxide, and optimizes temperature control through insulation and natural convection, eliminating the need for external cooling systems, thereby simplifying the design and reducing costs.
The reactor achieves efficient conversion of CO2 to renewable natural gas with >90% methane content, reducing capital and operating expenses while maintaining reactor integrity and operational efficiency.
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