Chemical kinetics-based analysis for utilities of ZEC power generation system

He, Boshu; Li, Mingyang; Wang, Xin; Zhu, Ling; Wang, Lili; Xue, Jiang; Chen, Zhenxing

doi:10.1016/j.ijhydene.2008.06.042

Cited by 17 publications

(4 citation statements)

References 6 publications

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“…Gasification is the key technology for the cleaner conversion of solid fuels such as coal, biomass and MSW, which have long been used under different names around the globe [11][12][13][14][15][16][17]. Gasification technology is primarily divided into three major groups: fixed bed, fluidised bed and entrained-flow gasifier [18].…”

Section: Gasification Technologiesmentioning

confidence: 99%

Gasification of Solid Fuels (Coal, Biomass and MSW): Overview, Challenges and Mitigation Strategies

Shahabuddin

Alam

2022

Energies

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Currently, hydrogen energy is the most promising energy vector, while gasification is one of the major routes for its production. However, gasification suffers from various issues, including slower carbon conversion, poor syngas quality, lower heating value and higher emissions. Multiple factors affect gasification performance, such as the selection of gasifiers, feedstock’s physicochemical properties and operating conditions. In this review, the status of gasification, key gasifier technologies and the effect of solid-fuel (i.e., coal, biomass and MSW) properties on gasification performance are reviewed critically. Based on the current review, the co-gasification of coal, biomass and solid waste, along with a partial utilisation of CO2 as a reactant, are suggested. Furthermore, a technological breakthrough in carbon capture and sequestration is needed to make it industrially viable.

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Section: Gasification Technologiesmentioning

confidence: 99%

Gasification of Solid Fuels (Coal, Biomass and MSW): Overview, Challenges and Mitigation Strategies

Shahabuddin

Alam

2022

Energies

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“…Several alternatives have been proposed in the literature as a means of providing the heat required for the calcination of CaCO 3 . These mainly include oxy-fuel combustion in a regenerator (Martínez et al, 2013b;Weimer et al, 2008;Wolf and Yan, 2005), indirect heating by hot solids (Wolf and Yan, 2005) or by hot gases (Johnsen et al, 2006;Li and Cai, 2007;Stevens et al, 2007) obtained from additional fuel combustion, or the use of the waste heat from a fuel cell coupled to the SER process (Boshu et al, 2008;Meyer et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

CaCO3 calcination by the simultaneous reduction of CuO in a Ca/Cu chemical looping process

Alarcón

Fernández

2015

Chemical Engineering Science

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“…Another solution proposed in the literature is the ZEG technology, which couples a solid oxide fuel cell (SOFC) to the sorption enhanced reforming process. This hybrid concept entails the production of hydrogen and electricity from natural gas (Meyer et al, 2011) or coal (Boshu et al, 2008), employing the waste heat from the fuel cell through an internal heat transfer loop in order to perform the CO 2 sorbent calcination at around 900 • C. This technology requires specific materials for the SOFC stacks (Ni-based and (La, Sr)MnO 3 -based electrodes) that must exhibit a high stability and low degradation rates under conditions of high temperature and pressure.…”

Section: Introductionmentioning

confidence: 99%

Conceptual design of a hydrogen production process from natural gas with CO2 capture using a Ca–Cu chemical loop

Fernández

Abanades

Murillo

et al. 2012

International Journal of Greenhouse Gas Control

122

165

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a b s t r a c tThis work presents a conceptual design of a novel method to obtain hydrogen and/or electricity from natural gas and a concentrated stream of CO 2 suitable for permanent geological storage. The method is based on the well known Sorption Enhanced Reforming (SER) principles for H 2 production using a CaO/CaCO 3 chemical loop. A second chemical loop of Cu/CuO is employed to solve the problem of endothermic CaCO 3 calcination in order to regenerate the sorbent and release the concentrated CO 2 . The reduction reaction of CuO with natural gas, CO or H 2 is shown to be feasible for providing the necessary heat for calcination. A preliminary design of the process has been carried out based on the principles of fixed bed operation and high temperature PSA, making use of the information offered by the literature to define the operating best conditions for the key gas-solid reaction steps and assuming ideal plug flow behaviour in all the reactors during the chemical reactions and gas-solid heat transfer. This makes it possible to define the precise operating windows for the process, so that the reactors can operate close to neutrally thermal conditions. Special material properties (particularly the Ca/inert and Cu/inert ratios) are required, but these are shown to be within the limits of what have been reported in the literature for other gas/solid reaction processes using the same reactions. The conclusion is that there is a great potential for achieving a high degree of energy efficiency with the proposed process by means of a sequence of reactions under the conditions described in this work.

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Chemical kinetics-based analysis for utilities of ZEC power generation system

Cited by 17 publications

References 6 publications

Gasification of Solid Fuels (Coal, Biomass and MSW): Overview, Challenges and Mitigation Strategies

Gasification of Solid Fuels (Coal, Biomass and MSW): Overview, Challenges and Mitigation Strategies

CaCO3 calcination by the simultaneous reduction of CuO in a Ca/Cu chemical looping process

Conceptual design of a hydrogen production process from natural gas with CO2 capture using a Ca–Cu chemical loop

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