Hydrogen from biomass – Present scenario and future prospects

Balat, Havva; Kırtay, Elif

doi:10.1016/j.ijhydene.2010.04.137

Cited by 673 publications

(274 citation statements)

References 76 publications

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“…In order to maintain a sustainable supply of energy together with a reduction in greenhouse gases emissions, it is essential to find alternative and cleaner sources of energy. Hydrogen has been suggested as such a future energy source which is currently largely produced from fossil fuels via natural gas steam reforming or coal gasification [3]. However, hydrogen production from fossil fuels is considered unsustainable and alternative, more carbon-neutral sources for hydrogen production are under consideration [3].…”

Section: Introductionmentioning

confidence: 99%

“…Hydrogen has been suggested as such a future energy source which is currently largely produced from fossil fuels via natural gas steam reforming or coal gasification [3]. However, hydrogen production from fossil fuels is considered unsustainable and alternative, more carbon-neutral sources for hydrogen production are under consideration [3]. Hydrogen may be produced from biomass via gasification/reforming processes [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

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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

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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.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

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“…Due to this data, it indicates that the world is still facing the dependency on fossil fuel. Petroleum-based fuels became the primary source energy for transportation needs in the 20th century and continued in the beginning of the 21th century with almost all vehicles running [2].…”

Section: Introductionmentioning

confidence: 99%

CO2 Emission Reduction Analysis of Bio-Hydrogen Network: An Initial Stage of Hydrogen Society

Hendrawan¹,

Dowaki²

2015

JOCET

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Abstract-This article presents a case study about regional network of bio-hydrogen supply-chain to discover the key indicators of sustainability of bio-hydrogen energy network in initial stage. The sustainability factor is focus on CO 2 emission abatement from introduction of bio-hydrogen network scenarios in comparison with the conventional system. The conventional hydrogen production method is steam methane reforming (SMR) from natural gas in Japan. The proposed hydrogen production system is a gasification process due to waste woody biomass as a feedstock and it produce in ASEAN member countries and then exporting to Japan. The feedstock is waste wood due to logging activity and production of pulp paper and furniture in the natural forest and forest plantation. The Life Cycle Inventory (LCI) analysis estimated the carbon dioxide (CO 2 ) emission in consideration of hydrogen form variation (liquid and gaseous phases). The results show that the high consumption of electricity in production system and the emission factor of electricity grid in each country play significant role to reduce CO 2 emission. Regional network of bio-hydrogen energy can be use for the international negotiation on climate change to drive the energy policy in national and local scale.Index Terms-Bio-hydrogen, waste woody, LCI, energy network.

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“…Being a secondary form of energy, H 2 does not freely exist in nature and consequently has to be manufactured. Today H 2 is produced essentially by steam methane reforming, coal gasification and in a lesser extent by water electrolysis [2,3,10]. The drawback of these processes is that they are using fossil fuels or electricity from non-renewable sources.…”

Section: Introductionmentioning

confidence: 99%

Co-production of hydrogen and electricity from lignocellulosic biomass: Process design and thermo-economic optimization

Tock¹,

Maréchal²

2012

Energy

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The thermochemical production of hydrogen from lignocellulosic biomass is systematically analyzed by developing thermo-environomic models combining thermodynamics with economic analysis, process integration techniques and optimization strategies for the conceptual process design. H 2 is produced by biomass gasification and subsequent gas treatment, followed by H 2 purification via CO 2 removal. It is shown how the overall efficiency is improved by considering process integration and computing the optimal integration of combined heat and power production. In the conversion process, electricity can be generated in steam and gas turbine cycles using the combustion of the off-gases and recovering available process heat. Additional electricity can be produced by burning part of the H 2 -rich intermediate or of the purified H 2 product. The trade-off between H 2 and electricity co-production and H 2 or electricity only generation is assessed with regard to energy, economic and environmental considerations. Based on multi-objective optimization, the most promising options for the poly-generation of hydrogen, power and heat are identified with regard to different process configurations. The best compromise between efficiency, H 2 and/or electricity production cost and CO 2 capture is identified. Biomass based H 2 and electricity reveal to be a competitive alternative in a future sustainable energy system. Keywords

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Hydrogen from biomass – Present scenario and future prospects

Cited by 673 publications

References 76 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

CO2 Emission Reduction Analysis of Bio-Hydrogen Network: An Initial Stage of Hydrogen Society

Co-production of hydrogen and electricity from lignocellulosic biomass: Process design and thermo-economic optimization

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