Life cycle assessment of hydrogen and power production by supercritical water reforming of glycerol

Galera, S.; Ortiz, F.J. Gutiérrez

doi:10.1016/j.enconman.2015.03.031

Cited by 46 publications

(11 citation statements)

References 30 publications

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“…emissions from SS3 should not be considered as fossil carbon, but as biogenic CO2. This decision agrees with a study on the production of hydrogen and electricity by reforming supercritical water from bioglycerol feedstock (Galera and Gutiérrez-Ortiz, 2015). If CO2…”

Section: Life Cycle Profile Of the Processsupporting

confidence: 91%

Environmental implications of biohydrogen based energy production from steam reforming of alcoholic waste

Cortes

Feijoo

Chica

et al. 2019

Industrial Crops and Products

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Nowadays, there is an increasing demand for energy in the world. With an energy system still based on fossil fuels, a paradigm shifts towards clean energy production based on available renewable resources is necessary. Hydrogen is a high-quality energy carrier that can be used with great efficiency and is expected to acquire a great importance in the next generation of fuels. This study aims to analyze the potential environmental impacts associated with the steam reforming of alcoholic waste from distilleries to produce clean electricity by using the Life Cycle Assessment methodology. The main findings from this study reported that the global environmental profile is better than other alternatives more common as sanitary landfill or incineration. In terms of some impact categories as Abiotic and Ozone Depletion, Acidification and Eutrophication, steam reforming of alcoholic waste performed better profiles than other processes that produce hydrogen from diverse feedstocks.

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Section: Life Cycle Profile Of the Processsupporting

confidence: 91%

Environmental implications of biohydrogen based energy production from steam reforming of alcoholic waste

Cortes

Feijoo

Chica

et al. 2019

Industrial Crops and Products

View full text Add to dashboard Cite

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“…Nevertheless, the capital investment and operational difficulties of ASCWR process leads to relatively high hydrogen production costs (5.75 $/kg). This value is still too high compared to conventional technologies (e.g., methane SR); in a future scenario, however, some possible improvements in supercritical water (SCW) reforming performance may lead to a decrease in the estimated renewable hydrogen price [130,131].…”

Section: Life Cycle Assessment (Lca) Approach For a Sustainable Hydromentioning

confidence: 99%

Hydrogen from Renewables: A Case Study of Glycerol Reforming

Fasolini

Cespi²,

Tabanelli

et al. 2019

Catalysts

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Biomass is an interesting candidate raw material for the production of renewable hydrogen. The conversion of biomass into hydrogen can be achieved by several processes. In particular, this short review focuses on the recent advances in glycerol reforming to hydrogen, highlighting the development of new and active catalysts, the optimization of reaction conditions, and the use of non-innocent supports as advanced materials for supported catalysts. Different processes for hydrogen production from glycerol, especially aqueous phase reforming (APR) and steam reforming (SR), are described in brief. Thermodynamic analyses, which enable comparison with experimental studies, are also considered. In addition, research advances in terms of life cycle perspective applied to support R&D activities in the synthesis of renewable H2 from biomass are presented. Lastly, also featured is an evaluation of the studies published, as evidence of the increased interest of both academic research and the industrial community in biomass conversion to energy sources.

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“…The GWP values fell in the interval between 0.28 and 0.52 kg CO 2 eq./kWh for the APG system and between 0.12 kg and 0.96 kg CO 2 eq./kWh for the COG case. These results were in the range of values that characterize the carbon footprint of natural gas-fired power generation [66,67]. The contribution of the hydrogen recovery stage in this category is much greater than that of the cell, being between 82% and 90% for the APG case and from 61% to 95% for the COG system.…”

Section: Life-cycle Impact Assessment Based On Energy Productionmentioning

confidence: 67%

Hydrogen Recovery from Waste Gas Streams to Feed (High-Temperature PEM) Fuel Cells: Environmental Performance under a Life-Cycle Thinking Approach

et al. 2020

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Fossil fuels are being progressively substituted by a cleaner and more environmentally friendly form of energy, where hydrogen fuel cells stand out. However, the implementation of a competitive hydrogen economy still presents several challenges related to economic costs, required infrastructures, and environmental performance. In this context, the objective of this work is to determine the environmental performance of the recovery of hydrogen from industrial waste gas streams to feed high-temperature proton exchange membrane fuel cells for stationary applications. The life-cycle assessment (LCA) analyzed alternative scenarios with different process configurations, considering as functional unit 1 kg of hydrogen produced, 1 kWh of energy obtained, and 1 kg of inlet flow. The results make the recovery of hydrogen from waste streams environmentally preferable over alternative processes like methane reforming or coal gasification. The production of the fuel cell device resulted in high contributions in the abiotic depletion potential and acidification potential, mainly due to the presence of platinum metal in the anode and cathode. The design and operation conditions that defined a more favorable scenario are the availability of a pressurized waste gas stream, the use of photovoltaic electricity, and the implementation of an energy recovery system for the residual methane stream.

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Life cycle assessment of hydrogen and power production by supercritical water reforming of glycerol

Cited by 46 publications

References 30 publications

Environmental implications of biohydrogen based energy production from steam reforming of alcoholic waste

Environmental implications of biohydrogen based energy production from steam reforming of alcoholic waste

Hydrogen from Renewables: A Case Study of Glycerol Reforming

Hydrogen Recovery from Waste Gas Streams to Feed (High-Temperature PEM) Fuel Cells: Environmental Performance under a Life-Cycle Thinking Approach

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