Preparation of nickel-loaded on Shengli lignite catalysts for catalytic gasification of biomass
BIAN Yue
XU Baoshan
WANG Benshui
CAO Jingpei
ZHAO Xiaoyan
WEI Xianyong
Abstract：In order to prepare low price and high active catalyst for biomass tar pyrogasification,based on the rich oxygen-containing spe-cies in lignite,a kind of novel catalyst was prepared by loading nickel on Shenli lignite char via ion-exchange.The effects of solution pH and carbonization temperature on the physic-chemical properties of catalyst was studied.The research determined the optimum operation condition of Ni/ SLC catalyst.Then the catalyst was used in two-stage moving-bed gasification of corn cob in quartz tube reactor.The influ-ence of catalyst on gas yield and carbon balance was investigated.The results showed that,the catalyst prepared in the pH of 11 at 650 ℃reached the maximum SSA of 266.3 m2 / g and the nickel particles dispersed quite well in the catalyst with the NCS of 5.0 nm.It effectively improved tar decomposition at 650 ℃ under inert atmosphere and produced a tar-free syngas in a yield of 43.9 mmol/ g,which were 3.3 times of the total gas yield without catalyst.The gasification of coal tar with steam was thorough.The gas yield were 85.1 mmol/ g,the H2 yield were 61.9 mmol/ g,which were 72.7% of the total gas yield.So the Ni/ SLC catalyst was suitable for the gasification of biomass.
Keywords：lignitelow-temperature gasificationcatalytic reformingnickel loaded on lignite charcorn cobnickel crystallite size
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 13-18 )