Preparation of nickel-loaded on lignite char for catalytic gasification of biomass

Preparation of high-dispersion Ni/C catalyst using modified lignite as carbon precursor for catalytic reforming of biomass volatiles

“…Ni/C catalysts were prepared by method of ion exchange using SL and the treated sample (OXSL, DMSL, OXDMSL, AWSL and OXAWSL) and nickel solution under carbonization temperature (CT) of 650°C for 1 h as reported previously [6]. The catalysts prepared with different samples were designated as Ni/SL, Ni/OXSL, Ni/DMSL, Ni/OXDMSL, Ni/AWSL and Ni/OXAWSL, respectively.…”

“…The atmosphere of the gasification was in the presence of Ar or steam (30 kPa) for catalytic reforming (CR) and catalytic steam reforming (CSR) of volatiles from corncob pyrolysis. Space velocity (SV) and temperature of catalytic bed was set at 3600 h À1 and 650°C, which were proved to be the suitable condition previously [6]. The characterization of the char and the gaseous and tarry products, as well as the calculation of carbon in gas (C gas ), carbon in water-soluble oil (C wso ) and carbon in char (C char ) were reported previously [25], and the details were presented in Supplementary Material.…”

“…It was concluded that treated materials by H 2 O 2 produce more volatiles compared with others, which was consistent with the results in Table 1. As reported previously [6], if the Ni/C catalyst was employed for CR and CSR, blank experiments should be performed to calculate the gas yields and carbon distributions accurately.…”

“…The catalyst that nickel-loaded on lignite was successfully utilized for volatile reforming in biomass gasification [6]. However, lignite contains a relatively high ash content, which might affect the ion-exchange capacity as well as the catalyst activity.…”

Effect of Ni/Al2O3-SiO2and Ni/Al2O3-SiO2with K2O Promoter Catalysts on H2, CO and CH4Concentration by CO2Gasification ofRosa MultifloraBiomass

“…Currently, there are numerous research projects have been implementing connected with catalyst activity for an additional gaseous yields extraction from tar cracking and char yield reduction from gasification and pyrolysis processes. Nickel based catalyst is extensively applied in chemical industries and is verified as one of the most effective transition metal catalysts [20,21] in biomass gasification for cracking and reforming of tar [22] as well as for enhancement of gaseous yields production.…”