Hydrogen-rich gas production by steam gasification of palm oil wastes over supported tri-metallic catalyst

Li, Jianfen; Yin, Yi; Zhang, Xuanming; Liu, Jianjun; Yan, Rong

doi:10.1016/j.ijhydene.2009.09.030

Cited by 136 publications

(58 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The gas yield in relation to biomass (corrected for no input water) only slightly increased from 63.83 wt.% for the largest particle size range (2.8 -3.3 mm) to 66.24 wt.% for the smallest particle size range (0.2 -0.5 mm). Similar findings have been reported in the literature [4,17,42,43] For example, Li et al [43] reported an increase in gas yield from 2.16 to 2.41 m 3 kg -1 when the particle size was reduced from 5 mm to < 0.15 mm during two stage gasification (800 °C) and catalytic reforming (850 °C) of palm oil waste.…”

Section: Influence Of Steam Flow Rate On Gas Composition and Hydrogensupporting

confidence: 89%

Pyrolysis/reforming of rice husks with a Ni–dolomite catalyst: Influence of process conditions on syngas and hydrogen yield

Waheed

2016

Journal of the Energy Institute

View full text Add to dashboard Cite

The influence of process conditions on the production of syngas and H2 from biomass in the form of rice husks was investigated using a two-stage pyrolysis-catalytic reforming reactor.The parameters investigated were, reforming temperature, steam flow rate and biomass particle size and the catalyst used was a 10 wt.% Ni-dolomite catalyst. Biomass was pyrolysed in the first stage, and the product volatiles were reformed in the second stage in the presence of steam and the Ni-dolomite catalyst. Increase in catalyst temperature from 850 °C to 1050 °C marginally improved total syngas yield. However, H2 yield was increased from 20.03 mmoles g -1 at 850 °C to 30.62 mmoles g -1 at 1050 °C and H2 concentration in the product gas increased from 53.95 vol.% to 65.18 vol.%. Raising the steam flow rate increased the H2 yield and H2 gas concentration. A significant increase in H2:CO ratio along with a decrease in CO:CO2 ratio suggested a change in the equilibrium of the water gas shift reaction towards H2 formation with increased steam flow rate. The influence of particle size on H2 yield was small showing an increase in H2 production when the particle size was reduced from 2.8 -3.3 to 0.2 -0.5 mm.

show abstract

Section: Influence Of Steam Flow Rate On Gas Composition and Hydrogensupporting

confidence: 89%

Pyrolysis/reforming of rice husks with a Ni–dolomite catalyst: Influence of process conditions on syngas and hydrogen yield

Waheed

2016

Journal of the Energy Institute

View full text Add to dashboard Cite

show abstract

“…The production of hydrogen shows a marked increase from 11.01 mmol g -1 tyre in the absence of steam rising to 32.64 mmol g -1 tyre at 2 ml h -1 water injection rate and 34.69 mmol g -1 tyre at 5 ml h -1 . The limited increment in H2 production as the water injection rate was increased from 2 to 5 ml h -1 suggest that high levels of water injection could reverse the water gas shift reaction [28,29]. The gas compositions at different water injection rates also shown in Also, the CO concentration decreased from 19.37 to 16.31 vol.% and the CO2 concentration increased from 0 to 14.24 vol.%.…”

Section: Effect Of Water Injection Ratementioning

confidence: 92%

Carbon nanotubes and hydrogen production from the pyrolysis catalysis or catalytic-steam reforming of waste tyres

Zhang

Williams

2016

Journal of Analytical and Applied Pyrolysis

View full text Add to dashboard Cite

A range of process conditions have been investigated to maximise the production of carbon nanotubes (CNTs) and/or hydrogen from waste tyres. A two-stage pyrolysis-catalytic reactor system was used and the influence of catalyst temperature (700, 800 and 900 °C), tyre: catalyst ratio (1:0.5, 1:1 and 1:2) and steam input (water injection 0, 2 and 5 ml h -1 ) to the second catalyst stage were investigated. The catalyst used was a Ni/Al2O3 catalyst prepared by a wetness impregnation technique. Carbon was deposited on the catalyst surface during pyrolysis-catalysis increasing with increasing catalyst temperature and also increasing as the tyre: catalyst ratio was raised. Examination of the carbon showed it to be composed of largely filamentous type carbons, producing 253.7 mg g -1 tyre of filamentous carbons at a tyre: catalyst ratio of 1:1 and catalyst temperature of 900 °C. A significant proportion of the deposited filamentous carbons were multi-walled carbon nanotubes as shown by transmission electron microscopy characterisation. The introduction of steam to the process enhanced hydrogen production, producing a maximum of 34.69 mmol g -1 tyre at a water injection rate of 5 ml h -1 .4

show abstract

“…Li et al [48] conducted steam gasification varying S/B from 0 to 2.67. With an increase in S/B from 0 to 1.33, an increase in H 2 composition was obtained.…”

Section: Effect Of S/b On Overall Gas Volume and Product Gas Compositionmentioning

confidence: 99%

Effect of combined slow pyrolysis and steam gasification of sugarcane bagasse on hydrogen generation

Parthasarathy

Narayanan

2015

Korean J. Chem. Eng.

View full text Add to dashboard Cite

show abstract

Hydrogen-rich gas production by steam gasification of palm oil wastes over supported tri-metallic catalyst

Cited by 136 publications

References 22 publications

Pyrolysis/reforming of rice husks with a Ni–dolomite catalyst: Influence of process conditions on syngas and hydrogen yield

Pyrolysis/reforming of rice husks with a Ni–dolomite catalyst: Influence of process conditions on syngas and hydrogen yield

Carbon nanotubes and hydrogen production from the pyrolysis catalysis or catalytic-steam reforming of waste tyres

Effect of combined slow pyrolysis and steam gasification of sugarcane bagasse on hydrogen generation

Contact Info

Product

Resources

About