期刊
RENEWABLE ENERGY
卷 147, 期 -, 页码 884-894出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.renene.2019.09.050
关键词
Biomass gasification; Char; Waste valorization; Fischer-Tropsch; Catalyst
资金
- Free University of Bolzano-Bozen, through the BIO2LIQ project: BIOmass-to-LIQuid as a strategy to enhance gasification potential in a biorefinery perspective [CUP I52F16000630005]
- Autonomous Province of Bolzano, Provincia Autonoma di Bolzano - Alto Adige, Ripartizione Diritto allo studio, University e ricerca scientifica, through the NEXT GENERATION project: Novel EXTension of biomass poly-GENERATION to small scale gasification sys [CUP B56J16000780003]
In spite of its remarkable properties and similarities to more traditional activated carbon (AC), biomass gasification char is considered a worthless material and treated as an industrial waste. However, similar to AC, char could be valorized in several applications. This study investigates the application of char as catalyst support for Fischer-Tropsch (FT) synthesis. For this purpose, char derived from a biomass gasifier operating in South Tyrol, Italy, was collected, characterized, acid treated and used as support for the catalysts preparation. Cobalt and iron were used as active metals and impregnated on char with a 10% metal loading (10Co and 10Fe). Catalysts were characterized through different techniques. FT tests were run in a fixed bed reactor operating at T = 240 degrees C, p = 1.6 MPa, H-2/CO = 2, WHSV = 3600 mL g(-1) h(-1).10Fe was also tested at 250 degrees C. Catalysts performances in terms of CO conversion, CH4 and CO2 selectivity, and product distribution were analyzed and compared. The highest CO conversion (26%) was measured for 10Fe at 250 degrees C. For 10Fe, C-1 - C-22 hydrocarbons were detected, while for 10Co also C-22 - C-24. Only production of C-13 - C-19 was superior for 10Fe than 10Co. (C) 2019 Elsevier Ltd. All rights reserved.
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