Hydrogen production, storage, utilisation and environmental impacts: a review

Environmental Chemistry Letters, Год журнала: 2021, Номер 20(1), С. 153 - 188

Опубликована: Окт. 6, 2021

Abstract Dihydrogen (H 2 ), commonly named ‘hydrogen’, is increasingly recognised as a clean and reliable energy vector for decarbonisation defossilisation by various sectors. The global hydrogen demand projected to increase from 70 million tonnes in 2019 120 2024. Hydrogen development should also meet the seventh goal of ‘affordable energy’ United Nations. Here we review production life cycle analysis, geological storage utilisation. produced water electrolysis, steam methane reforming, pyrolysis coal gasification. We compare environmental impact routes analysis. used power systems, transportation, hydrocarbon ammonia production, metallugical industries. Overall, combining electrolysis-generated with underground porous media such reservoirs salt caverns well suited shifting excess off-peak dispatchable on-peak demand.

Язык: Английский

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Conversion of biomass to biofuels and life cycle assessment: a review

Environmental Chemistry Letters, Год журнала: 2021, Номер 19(6), С. 4075 - 4118

Опубликована: Июль 23, 2021

Abstract The global energy demand is projected to rise by almost 28% 2040 compared current levels. Biomass a promising source for producing either solid or liquid fuels. Biofuels are alternatives fossil fuels reduce anthropogenic greenhouse gas emissions. Nonetheless, policy decisions biofuels should be based on evidence that produced in sustainable manner. To this end, life cycle assessment (LCA) provides information environmental impacts associated with biofuel production chains. Here, we review advances biomass conversion and their impact assessment. Processes gasification, combustion, pyrolysis, enzymatic hydrolysis routes fermentation. Thermochemical processes classified into low temperature, below 300 °C, high higher than i.e. combustion pyrolysis. Pyrolysis because it operates at relatively lower temperature of up 500 which 800–1300 °C. We focus 1) the drawbacks advantages thermochemical biochemical various possibility integrating these better process efficiency; 2) methodological approaches key findings from 40 LCA studies pathways published 2019 2021; 3) bibliometric trends knowledge gaps using routes. integration hydrothermal circular economy.

Язык: Английский

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Biogas upgrading, economy and utilization: a review

Environmental Chemistry Letters, Год журнала: 2021, Номер 19(6), С. 4137 - 4164

Опубликована: Авг. 27, 2021

Язык: Английский

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Selecting Catalysts for Pyrolysis of Lignocellulosic Biomass

Biomass, Год журнала: 2023, Номер 3(1), С. 31 - 63

Опубликована: Янв. 10, 2023

The pyrolysis of lignocellulosic biomass is a promising technology for obtaining renewable chemicals and fuels to replace fossil-based products. However, due the complexity lignin, cellulose hemicellulose molecules, large variety compounds are often formed, making commercial implementation difficult. use catalyst during reactions has been recognized as one major improvements in pyrolysis, allowing production selected compounds. Moreover, number available catalysts opens up wide range possibilities controlling reaction network. Zeolites, hierarchical zeolites, alkali alkaline earth oxides, transition metals carbonaceous materials, among others, have investigated biomasses. In addition, bifunctional play role well addition plastics hydrogen donors. This review aims present discuss detail state-of-the-art catalytic focusing on relationships between properties obtained A guideline selecting also provided.

Язык: Английский

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High-Value Utilization of Agricultural Residues Based on Component Characteristics: Potentiality and Challenges

Journal of Bioresources and Bioproducts, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Язык: Английский

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Microwave pyrolysis of coal, biomass and plastic waste: a review

Environmental Chemistry Letters, Год журнала: 2021, Номер 19(5), С. 3609 - 3629

Опубликована: Май 17, 2021

Язык: Английский

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Machine learning-quantitative structure property relationship (ML-QSPR) method for fuel physicochemical properties prediction of multiple fuel types

Fuel, Год журнала: 2021, Номер 304, С. 121437 - 121437

Опубликована: Июль 20, 2021

Язык: Английский

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Recent progress in catalytic deoxygenation of biomass pyrolysis oil using microporous zeolites for green fuels production

Fuel, Год журнала: 2022, Номер 333, С. 126268 - 126268

Опубликована: Окт. 20, 2022

Язык: Английский

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Electrochemical conversion of biomass-derived aldehydes into fine chemicals and hydrogen: A review

Environmental Chemistry Letters, Год журнала: 2022, Номер 21(3), С. 1555 - 1583

Опубликована: Ноя. 23, 2022

Язык: Английский

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Co-pyrolysis of sewage sludge and biomass for stabilizing heavy metals and reducing biochar toxicity: A review

Environmental Chemistry Letters, Год журнала: 2022, Номер 21(2), С. 1231 - 1250

Опубликована: Дек. 19, 2022

Abstract The huge amounts of sewage sludge produced by municipal wastewater treatment plants induce major environmental and economical issues, calling for advanced disposal methods. Traditional methods increase greenhouse gas emissions pollution. Moreover, biochar created from often cannot be used directly in soil applications due to elevated levels heavy metals other toxic compounds, which alter biota earthworms. This has limited the application sludge-derived as a fertilizer. Here, we review biomass co-pyrolysis with focus on stabilization toxicity reduction biochar. We observed that co-pyrolyzing materials reduced metal concentrations decreased risk up 93%. Biochar could enhance reproduction stimulation 20‒98%. Heavy immobilization transformation are controlled co-feed material mixing ratio, pyrolysis temperature, atmosphere.

Язык: Английский

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