Greener reactants, renewable energies and environmental impact mitigation strategies in pyrometallurgical processes: A review

MRS Energy & Sustainability, Год журнала: 2022, Номер 9(2), С. 212 - 247

Опубликована: Сен. 1, 2022

Abstract Metals and alloys are among the most technologically important materials for our industrialized societies. They common structural used in cars, airplanes buildings, constitute technological core of electronic devices. allow transportation energy over great distances exploited critical parts renewable technologies. Even though primary metal production industries mature operate optimized pyrometallurgical processes, they extensively rely on cheap abundant carbonaceous reactants (fossil fuels, coke), require high power heating units (which also typically powered by fossil fuels) to calcine, roast, smelt refine, generate many output streams with residual content. Many unit operations hazardous gaseous species top large CO 2 emissions which gas-scrubbing capture strategies future. Therefore, there still opportunities lower environmental footprint key operations. This paper explores possibility use greener such as bio-fuels, bio-char, hydrogen ammonia different units. It identifies all recycled that available (such steel aluminum scraps, waste Li-ion batteries) well challenges associated their integration processes. A complete discussion about alternatives carbon-based reduction is constructed around hydrogen, metallo-reduction inert anode electrometallurgy. The review work completed an overview approaches energies valorize heat Finally, mitigate impacts utilization storage gas scrubbing technologies detailed. original brings together first time potential efforts could be deployed future decrease industry. primarily intended favour collaborative establish synergies between academia, industry, decision-makers equipment providers. Graphical abstract Highlights more sustainable metals using reactants, green electricity or carbon possible sometimes already underway. More investments pressure required hasten change. Discussion Is enough meet set climate targets? greenhouse existing facilities can often partly mitigated retrofitting them technologies, should we close plants prematurely build new technologies? Since resources presently have limited availability, sector maximize benefits?

Язык: Английский

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Biochar: From by-products of agro-industrial lignocellulosic waste to tailored carbon-based catalysts for biomass thermochemical conversions

Chemical Engineering Journal, Год журнала: 2022, Номер 441, С. 135972 - 135972

Опубликована: Март 23, 2022

Язык: Английский

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Biochar composites: Emerging trends, field successes and sustainability implications

Soil Use and Management, Год журнала: 2021, Номер 38(1), С. 14 - 38

Опубликована: Май 31, 2021

Abstract Engineered biochars are promising candidates in a wide range of environmental applications, including soil fertility improvement, contaminant immobilization, wastewater treatment and situ carbon sequestration. This review provides systematic classification these novel biochar composites identifies the future trends composite research application. It is proposed that metals, minerals, layered double hydroxides, carbonaceous nanomaterials microorganisms enhance performances via distinct mechanisms. In this review, four identified assessed critically. Firstly, facile synthesis methods, particular ball milling co‐pyrolysis, have emerged as popular fabrication strategies suitable for large‐scale applications. Secondly, modification with green materials, such natural clay minerals microorganisms, align well on‐going sustainable remediation (GSR) movement. Furthermore, new applications health improvement climate change mitigation support realization United Nation's Sustainable Development Goals (SDGs). Finally, importance field studies getting more attention, since evidence success critically needed before

Язык: Английский

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Production and beneficial impact of biochar for environmental application: A review on types of feedstocks, chemical compositions, operating parameters, techno-economic study, and life cycle assessment

Fuel, Год журнала: 2023, Номер 343, С. 127968 - 127968

Опубликована: Март 2, 2023

Язык: Английский

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Recent advances in developing engineered biochar for CO2 capture: An insight into the biochar modification approaches

Journal of environmental chemical engineering, Год журнала: 2021, Номер 9(6), С. 106869 - 106869

Опубликована: Ноя. 26, 2021

Язык: Английский

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