Premium
Experimental Study on Catalytic Biomass Gasification in a Bubbling Fluidized Bed
Author(s) -
Cao Zhenheng,
Chen Jun,
Wang Caiqin
Publication year - 2018
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201700646
Subject(s) - char , tar (computing) , catalysis , fluidized bed , biomass (ecology) , hydrogen , hydrogen production , chemical engineering , yield (engineering) , chemistry , carbon fibers , materials science , pyrolysis , waste management , metallurgy , organic chemistry , composite number , composite material , oceanography , computer science , engineering , programming language , geology
A bubbling fluidized‐bed gasification system was selected for catalytic steam gasification of rice straw with four Ni‐based catalysts, i.e., Ni/Al 2 O 3 , Ni/CeO 2 , Ni/MnO 2 , and Ni/MgO. The effect of temperature, steam/biomass ratio ( S / B ), and catalyst/biomass ratio ( C / B ) on the gas composition, char conversion, and hydrogen yield was evaluated. It was found that higher temperature and S / B promote hydrogen production and char conversion. The results also demonstrated that the catalytic activity of Ni/Al 2 O 3 under different S / B values is better than those of the other catalysts. Regarding the catalyst activity, all four catalysts exhibited good performance in terms of tar removal and carbon conversion. However, the performance of Ni/Al 2 O 3 was superior to that of the other three catalysts.