Catalytic steam reforming of biomass tar over iron- or nickel-based catalyst supported on calcined scallop shell

Guan, Guoqing; Chen, Gang; Kasai, Yutaka; Lim, Ee Peng; Hao, Xiaogang; Kaewpanha, Malinee; Abudula, Abuliti; Fushimi, Chihiro; Tsutsumi, Atsushi

doi:10.1016/j.apcatb.2011.12.009

Cited by 159 publications

(86 citation statements)

References 49 publications

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“…One can see that coke deposited on the zeolite increased to a great extent after the first reuse, but the coke decreased gradually while the gaseous products of CO 2 , CO and H 2 increased to some extent after the second and third reuses, indicating that some coke could be gasified and moved out of the zeolite surface. The water produced from the dehydration of cellulose part in the earlier stage of biomass pyrolysis (Carlson et al, 2009) and the deposited coke could react with each other with the catalytic assistance of alkali and alkaline earth metals (AAEMs) (Guan et al, 2012(Guan et al, , 2013a in the bio-oil, producing H 2 and CO which served as reducer to react with oxygenates in bio-oil for removing out more oxygen from the bio-oil. The simultaneous decrease of coke and water content in Fig.…”

Section: Resultsmentioning

confidence: 99%

Selective catalytic conversion of bio-oil over high-silica zeolites

Widayatno

Guan

Rizkiana

et al. 2015

Bioresource Technology

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Four high silica zeolites, i.e., HSZ-385, 890, 960, and 990 were utilized for the selective catalytic conversion of bio-oil from Fallopia japonica to certain chemicals in a fixed-bed reactor. The Beta-type HSZ-960 zeolite showed the highest selectivity to hydrocarbons, especially to aromatics as well as PAH compounds with the lowest unwanted chemicals while HSZ-890 showed high selectivity to aromatics. NH3-Temperature Programmed Desorption (TPD) analysis indicated that different amounts of acid sites in different zeolites determined the catalytic activity for the oxygen removal from bio-oil, in which the acid sites at low temperature (LT) region gave more contribution within the utilized temperature region. The reusability test of HSZ-960 showed the stability of hydrocarbons yield at higher temperature due to the significant contribution of coke gasification which assisted further deoxygenation of bio-oil. These results provide a guidance to select suitable zeolite catalysts for the upgrading of bio-oil in a practical process.

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Section: Resultsmentioning

confidence: 99%

Selective catalytic conversion of bio-oil over high-silica zeolites

Widayatno

Guan

Rizkiana

et al. 2015

Bioresource Technology

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“…Addition of potassium to a Ni-based catalyst resulted in the increase of hydrogen production from biomass thermo-chemical conversion [34,35]. The negative effect of the presence of alkali metal on hydrogen production from biomass thermo-chemical conversion has been reported by Wu et al [36] who found that H2 content decreased from 35.1 to 26.7% when alkali metal vapors exposed over catalyst for 17 hours during the catalytic reforming of biomass fuel gas.…”

Section: Introductionmentioning

confidence: 90%

Hydrogen production from pyrolysis catalytic reforming of cellulose in the presence of K alkali metal

Zou

Yang

Zeng

et al. 2016

International Journal of Hydrogen Energy

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Abstract:The inherent alkaline metals in biomass material are known to be volatile during biomass pyrolysis. However, there are very limited works about the investigation of the influence of alkaline metal on hydrogen production from downstream catalytic reforming of pyrolysis vapors. In this study, the influence of volatile K inside the cellulose sample was investigated in terms of hydrogen production and catalyst stability using a two-stage fixed-bed reaction system in the presence of a Ni/Al2O3 catalyst. When the content of K in the cellulose sample was increased from 0 to 15%, the deposition of K on the surface of the reacted catalyst was kept constant at around 0.5 wt.% in terms of the weight of the catalyst. The life time test shows that hydrogen production was around 28 (mmol g -1 cellulose) for each experiment, when the catalyst was reused 5 times using the pure cellulose sample. However, the hydrogen production was significantly reduced to 22 (mmol g -1 cellulose) after the catalyst was reused 5 times with the 2.5%K/cellulose sample. X-Ray Fluorescence analysis shows that the reduce hydrogen production might be ascribed to the increase of the K deposition on the surface of the reused catalyst.

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“…Supported nickel metal has been widely used and it is considered as a feasible catalytic option for steam gasification of light hydrocarbons [41], biomass [39,42,43], plastics [44,45] and mixtures of biomass and plastics [46] due to the high cost of the noble metals. Some authors [41] studied the interactions of supported nickel and nickel oxide catalysts in the steam gasification of methane and reported that hydrocarbon fuels are partially or fully oxidized to produce hydrogen, carbon monoxide, carbon dioxide and water.…”

Section: Steam Gasification Studies Of Pb In the Presence Of Lnk-carbmentioning

confidence: 99%

Steam gasification of printed circuit board from e-waste: Effect of coexisting nickel to hydrogen production

Salbidegoitia

Fuentes-Ordóñez

González-Marcos

et al. 2015

Fuel Processing Technology

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Catalytic steam reforming of biomass tar over iron- or nickel-based catalyst supported on calcined scallop shell

Cited by 159 publications

References 49 publications

Selective catalytic conversion of bio-oil over high-silica zeolites

Selective catalytic conversion of bio-oil over high-silica zeolites

Hydrogen production from pyrolysis catalytic reforming of cellulose in the presence of K alkali metal

Steam gasification of printed circuit board from e-waste: Effect of coexisting nickel to hydrogen production

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