title: Biomass to hydrogen-rich syngas via catalytic steam gasification of bio-oil/biochar slurry.
abstract: The catalytic steam gasification of bio-oil/biochar slurry (bioslurry) for hydrogen-rich syngas production was investigated in a fixed-bed reactor using LaXFeO3 (X=Ce, Mg, K) perovskite-type catalysts. The effects of elemental substitution in LaFeO3, temperature, water to carbon molar ratio (WCMR) and bioslurry weight hourly space velocity (WbHSV) were examined. The results showed that La0.8Ce0.2FeO3 gave the best performance among the prepared catalysts and had better catalytic activity and stability than the commercial 14 wt.% Ni/Al2O3. The deactivation caused by carbon deposition and sintering was significantly depressed in the case of La0.8Ce0.2FeO3 catalyst. Both higher temperature and lower WbHSV contributed to more H2 yield. The optimal WCMR was found to be 2, and excessive introducing of steam reduced hydrogen yield. The La0.8Ce0.2FeO3 catalyst gave a maximum H2 yield of 82.01% with carbon conversion of 65.57% under the optimum operating conditions (temperature=800°C, WCMR=2 and WbHSV=15.36h(-1)).
authors.affiliation: School of Environmental Science and Engineering/State Key Lab of Engines, Tianjin University, Tianjin 300072, China; School of Science, Tibet University, No. 36 Jiangsu Street, Lhasa 850012, Tibet Autonomous Region, China; Tianjin Engineering Center of Biomass-derived Gas and Oil, Tianjin 300072, China.
authors.forename: Guanyi
authors.initials: G
authors.lastname: Chen
authors.affiliation: School of Environmental Science and Engineering/State Key Lab of Engines, Tianjin University, Tianjin 300072, China.
authors.forename: Jingang
authors.initials: J
authors.lastname: Yao
authors.affiliation: School of Environmental Science and Engineering/State Key Lab of Engines, Tianjin University, Tianjin 300072, China.
authors.forename: Jing
authors.initials: J
authors.lastname: Liu
authors.affiliation: School of Environmental Science and Engineering/State Key Lab of Engines, Tianjin University, Tianjin 300072, China; Key Laboratory of Efficient Utilization of Low and Medium Grade Energy (Tianjin University), Ministry of Education, Tianjin 300072, China. Electronic address: yanbeibei@tju.edu.cn.
authors.forename: Beibei
authors.initials: B
authors.lastname: Yan
authors.affiliation: School of Environmental Science and Engineering/State Key Lab of Engines, Tianjin University, Tianjin 300072, China.
authors.forename: Rui
authors.initials: R
authors.lastname: Shan
mesh_terms: D018533:Biomass; D001709:Biotechnology / Q000379:methods; D017610:Calcium Compounds; D002244:Carbon; D002384:Catalysis; D002606:Charcoal / Q000737:chemistry*; D005740:Gases; D006358:Hot Temperature; D006859:Hydrogen; D010087:Oxides; D013227:Steam; D013696:Temperature; D014025:Titanium
chemical_list: D017610:Calcium Compounds; D005740:Gases; D010087:Oxides; D013227:Steam; C540010:biochar; C518665:lanthanum iron oxide; C059910:perovskite; D002606:Charcoal; D002244:Carbon; D006859:Hydrogen; D014025:Titanium
keywords: Bio-oil/biochar slurry; Biomass; Catalytic steam gasification; Hydrogen; Perovskite-type oxide