CARBON FOOTPRINT OF HYDROGEN PRODUCED FROM SPENT COFFEE GROUNDS

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dc.authorscopusid55239883600
dc.authorscopusid57210842002
dc.authorscopusid26534038500
dc.authorscopusid6603843248
dc.contributor.authorUctug, F.G.
dc.contributor.authorCay, H.
dc.contributor.authorDuman, G.
dc.contributor.authorYanik, J.
dc.date.accessioned2024-08-25T18:53:21Z
dc.date.available2024-08-25T18:53:21Z
dc.date.issued2022
dc.departmentEge Üniversitesien_US
dc.descriptionBAU;et al.;INOGEN;Republic of Turkey, Ministry of Energy and Natural Resources;TENMARK;Turkish Airlinesen_US
dc.description23rd World Hydrogen Energy Conference: Bridging Continents by H2, WHEC 2022 -- 26 June 2022 through 30 June 2022 -- 186176en_US
dc.description.abstractLife cycle carbon footprint of producing hydrogen from spent coffee grounds was calculated. The following scenarios were compared: direct gasification; gasification of biochar produced by carbonization at 300°C and at 500°C; and gasification of hydrochar produced by hydrothermal carbonization. In each scenario, two sub-scenarios for one-step and two-step gasification were also studied, respectively. CCaLC2 software was used with CML2001 methodology, and the functional unit was defined as 1 kg of hydrogen gas produced. Material inputs and emissions were obtained based on experimental data whereas energy consumption of the process was partially adopted from the literature. Hydrogen produced via the two-step gasification of hydrochar obtained as a result of hydrothermal carbonization was found to have the lowest carbon footprint (33.0 kg CO2eq. per kg H2) whereas hydrogen produced via direct one-step gasification of spent coffee grounds was found to have the highest carbon footprint (87.0 kg CO2eq. per kg H2). The results in general were observed to be in reasonable consistency with the values reported for the carbon footprint of other hydrogen production methods. The main conclusions of the study were the necessity of adding a carbonization step prior to the gasification process, and preferring two-step gasification instead of one-step so that the carbon footprint can be reduced. © 2022 Proceedings of WHEC 2022 - 23rd World Hydrogen Energy Conference: Bridging Continents by H2. All rights reserved.en_US
dc.identifier.endpage303en_US
dc.identifier.isbn9786250008430
dc.identifier.scopus2-s2.0-85147191377en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.startpage301en_US
dc.identifier.urihttps://hdl.handle.net/11454/103058
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherInternational Association for Hydrogen Energy, IAHEen_US
dc.relation.ispartofProceedings of WHEC 2022 - 23rd World Hydrogen Energy Conference: Bridging Continents by H2en_US
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.snmz20240825_Gen_US
dc.subjectCarbon Footprinten_US
dc.subjectCarbonizationen_US
dc.subjectGasificationen_US
dc.subjectHydrogen Productionen_US
dc.subjectSpent Coffee Groundsen_US
dc.subjectCarbon footprinten_US
dc.subjectEnergy utilizationen_US
dc.subjectGasificationen_US
dc.subjectHydrogen productionen_US
dc.subjectLife cycleen_US
dc.subjectThermochemistryen_US
dc.subjectBiocharen_US
dc.subjectCarbonisationen_US
dc.subjectCML2001en_US
dc.subjectEnergy-consumptionen_US
dc.subjectFunctional unitsen_US
dc.subjectHigh carbonsen_US
dc.subjectHydrogen gasen_US
dc.subjectHydrothermal carbonizationen_US
dc.subjectLow carbonen_US
dc.subjectSpent coffee groundsen_US
dc.subjectCarbonizationen_US
dc.titleCARBON FOOTPRINT OF HYDROGEN PRODUCED FROM SPENT COFFEE GROUNDSen_US
dc.typeConference Objecten_US

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