Novel methanothermobacter wolfeii strain and use in production of renewable natural gas and co2 sequestration
EP4762166A1Pending Publication Date: 2026-06-24WASHINGTON STATE UNIVERSITY
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Patent Information
- Application Number
- EP2024854988
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-08-17
- Filing Date
- 2024-08-16
- Publication Date
- 2026-06-24
AI Technical Summary
Technical Problem
Current methods for cultivating methanogens require organic supplements, which increase costs and discourage their use for CO2 capture and renewable natural gas production.
Method used
A newly isolated variant of Methanothermobacter wolfeii, M. wolfeii BSEL1, is adapted to grow optimally and produce methane in mineral media without organic supplements, utilizing CO2 as an electron acceptor.
Benefits of technology
M. wolfeii BSEL1 efficiently converts CO2 and hydrogen into methane, reducing production costs and enabling more sustainable CO2 sequestration and renewable energy sourcing.
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Figure US2024042655_20022025_PF_FP_ABST
Abstract
The present disclosure pertains to a Methanothermobacter wolfeii archaeal strain identified as BSEL1 and progeny and mutants thereof. The archaeal strain BSEL1 is capable of growing and producing renewable natural gas (RNG) from a supply of carbon dioxide (CO2) and hydrogen (H2) without the addition of organic supplements, and further to grow in wastewater with an exceptionally high growth rate. The strain is further capable of reducing CO2 to a very low level when grown, e.g., in a trickling bed reactor. BSEL1 is of major importance for direct addition of RNG into the natural gas grid.
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