Invention Grant
- Patent Title: Methane production using resin-wafer electrodeionization
- Patent Title (中): 甲烷生产使用树脂晶片电去离子
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Application No.: US13648319Application Date: 2012-10-10
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Publication No.: US08679314B1Publication Date: 2014-03-25
- Inventor: Seth W. Snyder , YuPo Lin , Meltem Urgun-Demirtas
- Applicant: Seth W. Snyder , YuPo Lin , Meltem Urgun-Demirtas
- Applicant Address: US DC Washington
- Assignee: U.S. Department of Energy
- Current Assignee: U.S. Department of Energy
- Current Assignee Address: US DC Washington
- Agent John D. Cravero; Brian J. Lally; John T. Lucas
- Main IPC: B01D61/48
- IPC: B01D61/48 ; C02F11/04
Abstract:
The present invention provides an efficient method for creating natural gas including the anaerobic digestion of biomass to form biogas, and the electrodeionization of biogas to form natural gas and carbon dioxide using a resin-wafer deionization (RW-EDI) system. The method may be further modified to include a wastewater treatment system and can include a chemical conditioning/dewatering system after the anaerobic digestion system. The RW-EDI system, which includes a cathode and an anode, can either comprise at least one pair of wafers, each a basic and acidic wafer, or at least one wafer comprising of a basic portion and an acidic portion. A final embodiment of the RW-EDI system can include only one basic wafer for creating natural gas.
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