Hydrogen-Rich Gas Formation Characteristics under Microwave Catalytic Pyrolysis of Sewage Sludge

Wei Chao Yu; Wen Yi Deng; Ya Xin Su

doi:10.4028/www.scientific.net/AMR.781-784.2429

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 781-784Hydrogen-Rich Gas Formation Characteristics under...

Hydrogen-Rich Gas Formation Characteristics under Microwave Catalytic Pyrolysis of Sewage Sludge

Abstract:

Microwave catalytic pyrolysis of sewage sludge were conducted on a single mode microwave reactor. The effects of CaO and steam on hydrogen-rich gas formation characteristics were analyzed. The results indicated that the CaO can improve the formation of H₂ and CO. When CaO in sewage sludge increased from 0 to 0.75 g/(g dried sludge), the H₂ and CO concentration increased from 62 vol.% to 77 vol.%, while CH₄ and CO₂ concentrations decreased from 28 vol.% to 9 vol.%. The steam can also improve the formation of H₂ and CO, with 1.59 g/min of the steam flowrate, the H₂ and CO concentration increased to the maximum of 81 vol.%, and the CH₄ and CO₂ concentration decreased to the minimum of 16 vol.%. When the steam gasification was coupled with the CaO catalyzing, the H₂ concentration can reach to 61 vol.%, which was 79.3% higher than the experimental conditions absent of steam and CaO.

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Periodical:

Advanced Materials Research (Volumes 781-784)

Pages:

2429-2432

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.781-784.2429

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Online since:

September 2013

Authors:

Wei Chao Yu, Wen Yi Deng*, Ya Xin Su

Keywords:

Catalytic, Hydrogen, Microwave, Pyrolysis, Sewage Sludge

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