Uddin, Azhar und Bose, Archishman und Boaro, Marta und Llorca, Jordi und Santarelli, Massimo (2020) Assessment of integration of methane-reduced ceria chemical looping CO2/H2O splitting cycle to an oxy-fired power plant. International Journal of Hydrogen Energy, 45 (11), Seiten 6184-6206. Elsevier. doi: 10.1016/j.ijhydene.2019.12.182. ISSN 0360-3199.
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Kurzfassung
In this paper, we investigated the effect of reaction kinetics and moving bed reactors for chemical looping (CO2 / H2O)splitting unit (CL) that produces syngas and fedback to the power plant to gain the efficiency loss due to carbon capture. The reduction reactor (RED) produces Methane is partially oxidized to make syngas and reducing the non-stoichiometric ceria which is transported to oxidation reactor (OXI) where the flue gases (CO2 and H2O)split to produce syngas. We developed the kinetics for methane reduced ceria and CO2/H2O splitting in a tubular reactor for an operating temperature range of (900 to 1100 °C) for different methane concentration which yielded to Avrami-Erofeev (AE3) model fits well for both redox reaction with different reaction constants. A moving bed reactors system is developed representing RED and OXI reactors of CL unit with kinetics hooked to the model in Aspen Plus with FORTRAN code. The effect of thermodynamics and the kinetics of redox reaction was investigated in the proposed integrated plant. The CL unit efficiency obtained is 42.8% for kinetic-based CL unit compares to 64% for thermodynamic based CL unit. However, the maximum available efficiency of the proposed layout lowered as 50.9% for kinetic-based CL unit plant compare to than 61.5% for thermodynamic based CL unit. However, the proposed plant shows an improvement in the energy efficiency penalty from 11.3% to 3.8% after CCS.
elib-URL des Eintrags: | https://elib.dlr.de/140081/ | ||||||||||||||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||||||
Titel: | Assessment of integration of methane-reduced ceria chemical looping CO2/H2O splitting cycle to an oxy-fired power plant | ||||||||||||||||||||||||
Autoren: |
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Datum: | 28 Februar 2020 | ||||||||||||||||||||||||
Erschienen in: | International Journal of Hydrogen Energy | ||||||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||||||
Open Access: | Ja | ||||||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||||||||||
In ISI Web of Science: | Ja | ||||||||||||||||||||||||
Band: | 45 | ||||||||||||||||||||||||
DOI: | 10.1016/j.ijhydene.2019.12.182 | ||||||||||||||||||||||||
Seitenbereich: | Seiten 6184-6206 | ||||||||||||||||||||||||
Verlag: | Elsevier | ||||||||||||||||||||||||
ISSN: | 0360-3199 | ||||||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||||||
Stichwörter: | Chemical looping CO2/H2O splitting Kinetics Experimental System analysis Moving bed reactors | ||||||||||||||||||||||||
HGF - Forschungsbereich: | Energie | ||||||||||||||||||||||||
HGF - Programm: | Speicher und vernetzte Infrastrukturen | ||||||||||||||||||||||||
HGF - Programmthema: | Elektrolyse und Wasserstoff | ||||||||||||||||||||||||
DLR - Schwerpunkt: | Energie | ||||||||||||||||||||||||
DLR - Forschungsgebiet: | E SP - Energiespeicher | ||||||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | E - Elektrochemische Prozesse (Elektrolyse) (alt) | ||||||||||||||||||||||||
Standort: | Stuttgart | ||||||||||||||||||||||||
Institute & Einrichtungen: | Institut für Technische Thermodynamik > Elektrochemische Energietechnik | ||||||||||||||||||||||||
Hinterlegt von: | Friedrich, Prof.Dr. Kaspar Andreas | ||||||||||||||||||||||||
Hinterlegt am: | 11 Jan 2021 17:02 | ||||||||||||||||||||||||
Letzte Änderung: | 01 Mär 2024 03:00 |
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