A process for the methanation of coal-to-syngas
CN116948712BActive Publication Date: 2026-06-30SINOPEC NANJING RES INST OF CHEM IND CO LTD +2
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SINOPEC NANJING RES INST OF CHEM IND CO LTD
- Filing Date
- 2022-04-12
- Publication Date
- 2026-06-30
Smart Images
Figure CN116948712B_ABST
Abstract
This invention discloses a process for the methanation of coal-to-syngas, in which syngas is processed into SNG through a three-stage methane synthesis reactor. The process features a short flow path, fewer equipment requirements, and eliminates the need for a circulating compressor or hydrogen supplementation for syngas dilution. Furthermore, it utilizes the byproduct steam generated from the reaction heat as a heating source, demonstrating excellent energy efficiency. Additionally, it exhibits high COx conversion rate, good CH4 selectivity, and a CH4 content exceeding 98% in the product gas, meeting the requirements for natural gas pipeline transportation.
Need to check novelty before this filing date? Find Prior Art
Citation Information
Patent Citations
Methanation method with combination of slurry bed and fixed bed
CN104212507A
Preparation method and preparation device for substitute natural gas
CN109837125A
Process for synthesizing methane through synthesis gas
CN102690157A
Technology for preparing synthetic natural gas
CN105087091A