Integrated carbon recycling system for mitigation of CO sub(2) emissions utilizing degraded thermal energy

A natural gas-based power plant design with onsite methanation of CO sub(2) incorporated has been proposed for an option of mitigation technology of CO sub(2) emissions. CO sub(2) and NO sub(x) in the flue gas at 330 degree C are adsorbed/separated from the main constituent N sub(2) gas by oxygen-de...

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Bibliographic Details
Published in:Energy conversion and management 1995-08, Vol.37 (6-8), p.1333-1338
Format: Article
Language:English
Online Access:Get full text
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Summary:A natural gas-based power plant design with onsite methanation of CO sub(2) incorporated has been proposed for an option of mitigation technology of CO sub(2) emissions. CO sub(2) and NO sub(x) in the flue gas at 330 degree C are adsorbed/separated from the main constituent N sub(2) gas by oxygen-deficient Ni(II) ferrite reactor and simultaneously decomposed to carbon and gaseous N sub(2) at the same temperature. Then, carbon is hydrogenated to form CH sub(4) at 330 degree C and recycled to the natural gas boiler along with the process heat. This system can be applied easily to existing power plants and will contribute to mitigation of CO sub(2) emissions at a minimum additional cost and will be important when H sub(2) gas would be supplied cheaply and sufficiently. A thermochemical water-splitting to form H sub(2) gas using a tailor-made ceramics and degraded thermal energy at 300 degree C was described for an efficient utilization of fossil energy.
ISSN:0196-8904