Fuel 212 (2018) 523–532 Contents lists available at ScienceDirect Fuel journal homepage: www.elsevier.com/locate/fuel Full Length Article Catalytic mechanism of ion-exchanging alkali and alkaline earth metallic species on biochar reactivity during CO /H O gasiﬁcation 2 2 a a, a,b a a a Dongdong Feng , Yijun Zhao , Yu Zhang , Huanhuan Xu , Linyao Zhang , Shaozeng Sun School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, PR China Faculty of Engineering, University of Nottingham, Nottingham NG7 2TU, UK GR APHICAL A BSTRACT ARTICLE I NFO ABSTRACT Keywords: To understand the detailed catalytic mechanism of ion-exchanging AAEM species on biochar structure and its AAEM speciﬁc reactivity during CO /H O gasiﬁcation, the experiments were carried out in a laboratory ﬁxed-bed 2 2 CO /H O 2 2 reactor at 800 °C, with two kinds of AAEM-loading methods. The migration and precipitation characteristics of Gasiﬁcation AAEM species was evaluated by ICP-AES, while the transformation of biochar structures were analyzed by FTIR Biochar structure and Raman. The speciﬁc reactivity of H O/CO gasiﬁcation biochar was determined by TGA analysis in Air at 2 2 Speciﬁc reactivity 370 °C. The results show that the stronger catalytic properties of
Fuel – Elsevier
Published: Jan 15, 2018
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