The technical feasibility of biomass gasification for hydrogen production

Albertazzi, Simone; Basile, Francesco; Brandin, Jan; Einvall, Jessica; Hulteberg, Christian; Fornasari, Giuseppe; Rosetti, Valentina; Sanati, Mehri; Trifirò, F.; Vaccari, Angelo

doi:10.1016/j.cattod.2005.07.160

Cited by 91 publications

(50 citation statements)

References 7 publications

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“…Biomass gasification is a promising pathway for the conversion of biomass into energy products taking place at elevated temperatures, between 500 and 1400 • C without combustion [35]. Renewable biomass is an attractive alternative and in continuous evolution because of essentially being CO 2 neutral source [36]. The process flowchart and a mass balance diagram are presented by Mann and Steward [29].…”

Section: Biomass Gasificationmentioning

confidence: 99%

Life Cycle Assessment and Water Footprint of Hydrogen Production Methods: From Conventional to Emerging Technologies

et al. 2018

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A common sustainability issue, arising in production systems, is the efficient use of resources for providing goods or services. With the increased interest in a hydrogen (H 2 ) economy, the life-cycle environmental performance of H 2 production has special significance for assisting in identifying opportunities to improve environmental performance and to guide challenging decisions and select between technology paths. Life cycle impact assessment methods are rapidly evolving to analyze multiple environmental impacts of the production of products or processes. This study marks the first step in developing process-based streamlined life cycle analysis (LCA) of several H 2 production pathways combining life cycle impacts at the midpoint (17 problem-oriented) and endpoint (3 damage-oriented) levels using the state-of-the-art impact assessment method ReCiPe 2016. Steam reforming of natural gas, coal gasification, water electrolysis via proton exchange membrane fuel cell (PEM), solid oxide electrolyzer cell (SOEC), biomass gasification and reforming, and dark fermentation of lignocellulosic biomass were analyzed. An innovative aspect is developed in this study is an analysis of water consumption associated with H 2 production pathways by life-cycle stage to provide a better understanding of the life cycle water-related impacts on human health and natural environment. For water-related scope, Water scarcity footprint (WSF) quantified using Available WAter REmaining (AWARE) method was applied as a stand-alone indicator. The paper discusses the strengths and weaknesses of each production pathway, identify the drivers of environmental impact, quantify midpoint environmental impact and its influence on the endpoint environmental performance. The findings of this study could serve as a useful theoretical reference and practical basis to decision-makers of potential environmental impacts of H 2 production systems.

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Section: Biomass Gasificationmentioning

confidence: 99%

Life Cycle Assessment and Water Footprint of Hydrogen Production Methods: From Conventional to Emerging Technologies

et al. 2018

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“…Therefore, there is global interest in the development of renewable and clean fuels as alternatives to fossil fuels [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

“…A 25L Tedlar TM gas bag was used to collect the non-condensed gases, which were further analyzed using off-line gas chromatograph (GC). The gas, residue yields and mass balance was calculated via the following Equations (1), (2) and (3), respectively:…”

mentioning

confidence: 99%

Promoting hydrogen production and minimizing catalyst deactivation from the pyrolysis-catalytic steam reforming of biomass on nanosized NiZnAlOx catalysts

Dong

Ling

et al. 2017

Fuel

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Hydrogen production from the thermochemical conversion of biomass was carried out with nano-sized NiZnAlOx catalysts using a two-stage fixed bed reactor system. The gases derived from the pyrolysis of wood sawdust in the first stage were catalytically steam reformed in the second stage. The NiZnAlOx catalysts were synthesized by a co-precipitation method with different Ni molar fractions (5, 10, 15, 25 and 35%) and a constant Zn:Al molar ratio of 1:4. The catalysts were characterized by a wide range of techniques, including N2 adsorption, SEM, XRD, TEM and temperature-programmed oxidation (TPO) and reduction (TPR). Fine metal particles of size around 10-11 nm were obtained and the catalysts had high stability characteristics, which improved the dispersion of active centers during the reaction and promoted the performance of the catalysts. The yield of gas was increased from 49.3 to 74.8 wt.%, and the volumetric concentration of hydrogen was increased from 34.7 to 48.1 vol.%, when the amount of Ni loading was increased from 5 to 35%. Meanwhile, the CH4 fraction decreased from 10.2 to 0.2 vol.% and the C2-C4 fraction was reduced from 2.4 vol.% to 0.0 vol.%. During the reaction, the crystal size of all catalysts was successfully maintained at around 10-11 nm with lowered catalyst coke formation, (particularly for the 35NiZn4Al catalyst where negligible coke was found) and additionally no obvious catalyst sintering was detected. The efficient production of hydrogen from the thermochemical conversion of renewable biomass indicates that it is a promising sustainable route to generate hydrogen from biomass using the NiZnAl metal oxide catalyst prepared in this work via a two-stage reaction system.

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“…are, at the present, not included in the project. In table 1, the estimated gas composition after the gasifier is given (5). Those values were estimated, within the consortium, from the expected change in gas composition when switching from air blown to oxygen Figure 1.…”

Section: Unit Operations In the Plantmentioning

confidence: 99%

“…To use the produced gas in subsequent synthesis processes, for instance Fischer-Tropsch, the ratio should be close to 2. The role of the shift steps [3,4] is to tune the ratio between H 2 and CO to the desired value according to the water gas shift reaction [5]. This reaction is ruled by equilibrium ( figure 4).…”

Section: The Shiftmentioning

confidence: 99%

Shift catalysts in biomass generated synthesis gas

2007

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One of the CHRISGAS project objectives is to study the shift catalysts in biomass-generated synthesis gas. The water gas shift reaction is ruled by equilibrium, and the state of the gas can for a given H 2 /CO ratio be shifted by addition/removal of water, CO 2 and/or by a change in the temperature. Stability area in respect to gas composition, sulphur content, pressure and temperature for FeCr shift catalyst has been investigated by thermodynamic equilibrium calculations. The calculations show that carbide formation is favourable in the ''Normal water'' case without sulphur in the gas. If sulphur is present in the gas, the situation improves due to sulphide formation.

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The technical feasibility of biomass gasification for hydrogen production

Cited by 91 publications

References 7 publications

Life Cycle Assessment and Water Footprint of Hydrogen Production Methods: From Conventional to Emerging Technologies

Life Cycle Assessment and Water Footprint of Hydrogen Production Methods: From Conventional to Emerging Technologies

Promoting hydrogen production and minimizing catalyst deactivation from the pyrolysis-catalytic steam reforming of biomass on nanosized NiZnAlOx catalysts

Shift catalysts in biomass generated synthesis gas

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