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The effects of catalysts on the conversion of organic matter and bio-fuel production in the microwave pyrolysis of sludge at different temperatures

Abstract : Adding catalyst could improve the yields and qualities of bio-gas and bio-oil, and realize the oriented production. Results showed that the catalytic gas-production capacities of CaO were higher than those of Fe2O3, and the bio-gas yield at 800°C reached a maximum of 35.1%. Because the polar cracking active sites of CaO reduced the activation energy of the pyrolysis reaction and resulted in high catalytic cracking efficiencies. In addition, the quality of bio-oil produced by CaO was superior to that by Fe2O3, although the bio-oil yield of CaO was relatively weak. The light bio-fuel oriented catalytic pyrolysis could be realized when adding different catalysts. At 800°C, CaO was 45% higher than Fe2O3 in aspect of H2 production while Fe2O3 was 103% higher than CaO in aspect of CH4 production. Therefore, CaO was more suitable for H2 production and Fe2O3 was more suitable for CH4 production.
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https://hal-univ-rennes1.archives-ouvertes.fr/hal-01533329
Contributor : Laurent Jonchère <>
Submitted on : Wednesday, July 5, 2017 - 4:42:42 PM
Last modification on : Thursday, March 5, 2020 - 2:05:34 PM
Long-term archiving on: : Tuesday, January 23, 2018 - 10:03:17 PM

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Rui Ma, Xiaofei Huang, Yang Zhou, Lin Fang, Shichang Sun, et al.. The effects of catalysts on the conversion of organic matter and bio-fuel production in the microwave pyrolysis of sludge at different temperatures. Bioresource Technology, Elsevier, 2017, 238, pp.616-623. ⟨10.1016/j.biortech.2017.04.103⟩. ⟨hal-01533329⟩

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