Potential hydrogen and non-condensable gases production from biomass pyrolysis: Insights into the process variables

Uddin, Md. Nasir; Daud, Wan Mohd Ashri Wan; Abbas, Hazim F.

doi:10.1016/j.rser.2013.06.031

Cited by 115 publications

(33 citation statements)

References 196 publications

(244 reference statements)

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“…The literature data [32] suggest that the deactivation rate of the catalyst in the investigated process is associated with the formation of carbon deposit. It seems that alkali and alkaline earth dopants inhibited this phenomenon, which in turn enhances overall activity of the modified materials [17,25].…”

Section: Resultsmentioning

confidence: 87%

Effect of alkali and alkaline earth metals addition on Ni/ZrO2 catalyst activity in cellulose conversion

Ryczkowski

Niewiadomski

Michalkiewicz

et al. 2016

J Therm Anal Calorim

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This work is devoted to the investigation of the effect of alkali and alkaline earth metals addition on Ni/ ZrO 2 catalyst activity in high-temperature cellulose conversion. The catalysts containing 20 % of Ni and 1 % of Ca, Mg, Na and K (calculated per amount of oxide) introduced on ZrO 2 surface by impregnation method were prepared. The surface properties of the investigated samples were characterized by X-ray diffraction, temperatureprogrammed reduction, flame atomic absorption spectrometry, scanning electron microscopy and energy-dispersive X-ray spectroscopy. The composition of the gaseous products was identified using gas chromatography. The performed studies demonstrated that introduction of alkali and alkaline earth metals on the surface of nickel catalyst resulted in the considerable increase in the production of hydrogen in comparison with Ni/ZrO 2 reference sample. The highest hydrogen yield was formed in the presence of the catalyst modified by calcium.

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Section: Resultsmentioning

confidence: 87%

Effect of alkali and alkaline earth metals addition on Ni/ZrO2 catalyst activity in cellulose conversion

Ryczkowski

Niewiadomski

Michalkiewicz

et al. 2016

J Therm Anal Calorim

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“…The main objective of the carrier gas is to remove the volatiles like oxygen from the system [25,32]. As gas formation is improved when the N 2 flow rate is higher [25], N 2 is used as a carrier gas because of targeting the hydrogen gas as a main target of this investigation. A flow meter was used to control the nitrogen flow rate to know the effect of N 2 flow on OPF during pyrolysis.…”

Section: Experimental Setup and Methodsmentioning

confidence: 99%

“…The initial products from pyrolysis reaction include solid char and condensable gases. The condensable gases decompose further due to the high temperature and form some non-condensable gases (H 2 , CO 2 , CO and CH 4 ), char and liquid through gassolid-phase heterogeneous thermal reactions and gas-phase homogeneous reactions and [25]. There are also a little amount of C 2 H 4 and C 2 H 6 which also vary with rising the temperature [11].…”

Section: Introductionmentioning

confidence: 99%

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Microwave pyrolysis of oil palm fiber (OPF) for hydrogen production: Parametric investigation

Hossain

Jewaratnam

Ganesan

et al. 2016

Energy Conversion and Management

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“…Thermochemical conversion is one of the most important conversion technologies of biomass. Through thermochemical treatment, biomass is decomposed to bio-oil, char, syngas and syngas mainly consists of H2, CO, CO2, and CH4 (Nasir Uddin et al, 2013). Hydrogen is thought to be the energy for future.…”

Section: Introductionmentioning

confidence: 99%

Producing Hydrogen-rich Gas by Fresh Biomass Co-pyrolysis with Additive

2017

Global NEST Journal

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Pyrolysis properties of fresh ficus lacor leaves with moisture content of 70wt. % was investigated in a TGA setup. The effects of different operating parameters on pyrolysis of biomass were studied in a fixed-bed reactor system. With addition of CaO, there showed an additional decrease in weight at temperature range of 382~490 °C, but 12wt. % weight was recovered in the first stage (40~220 °C). Fresh biomass pyrolysis was calculated to be first order reaction with activation energy about 29.8 kJ mol -1 . Activation energy was lowered to 20.4 kJ mol -1 by addition of CaO. With scope of temperature studied, higher temperature was found always favor hydrogen production during pyrolysis of fresh biomass. Carbonation and hydration of CaO enhanced water gas shift reaction (WGS) which led to hydrogen yield increasing. The highest hydrogen content (around 70vol. %) of hydrogen concentration and hydrogen yield (23.2 ml g -1 -biomass) were achieved when CaO/biomass mass ratio increased to 0.3. Pyrolysis of fresh biomass without pre-drying showed the potential of hydrogen production.

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Potential hydrogen and non-condensable gases production from biomass pyrolysis: Insights into the process variables

Cited by 115 publications

References 196 publications

Effect of alkali and alkaline earth metals addition on Ni/ZrO2 catalyst activity in cellulose conversion

Effect of alkali and alkaline earth metals addition on Ni/ZrO2 catalyst activity in cellulose conversion

Microwave pyrolysis of oil palm fiber (OPF) for hydrogen production: Parametric investigation

Producing Hydrogen-rich Gas by Fresh Biomass Co-pyrolysis with Additive

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