Chemical looping-A perspective on the next-gen technology for efficient fossil fuel utilization

Joshi, Anuj; Shah, Vedant; Mohapatra, Pinak; Kumar, Sonu; Joshi, Rushikesh K.; Kathe, Mandar; Qin, Lang; Tong, Andrew; Fan, Liang‐Shih

doi:10.1016/j.adapen.2021.100044

Cited by 66 publications

(28 citation statements)

References 173 publications

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“…Chemical looping technology is one of the sustainable technologies that can be harnessed aiming at producing fuel and/or energy from waste solid and/or gaseous hydrocarbon when coupled with renewable energy [7]. A chemical looping system consists of two reactors namely the metal oxide reduction reactor (fuel reactor) and metal oxidation reactor (air reactor).…”

Section: Introductionmentioning

confidence: 99%

Thermal plasma-aided chemical looping carbon dioxide dissociation for fuel production from aluminium particles

Sarafraz

Christo

Tran

et al. 2022

Energy Conversion and Management

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Section: Introductionmentioning

confidence: 99%

Thermal plasma-aided chemical looping carbon dioxide dissociation for fuel production from aluminium particles

Sarafraz

Christo

Tran

et al. 2022

Energy Conversion and Management

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“…In a chemical looping process, CO 2 and CH 4 can be converted into valuable chemicals through the cyclic reaction and regeneration of a looping mediator. For instance, chemical looping reforming achieves CH 4 oxidation and CO 2 reduction in an integrated process to produce syngas as chemical building block of the most important chemical materials and can be used to produce methanol, gasoline and other chemical products 11,12 . This technology shows a promising future for scalability and commercial applicability, though also facing issues as material deactivation, system complexity, and high solid recirculation rate 11–14 .…”

Section: Introductionmentioning

confidence: 99%

Separate H₂ and CO production from CH₄‐CO₂ cycling of Fe‐Ni

Jin

Srinath²,

Poelman³

et al. 2022

AIChE Journal

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CH 4 -CO 2 chemical looping is proposed for separate H 2 and CO production using nanostructured Fe-Ni looping materials. The product streams are obtained by first feeding CH 4 , which decomposes to H 2 and carbon. The latter acts as reductant for the subsequent CO 2 feed, which together with Fe re-oxidation yields CO. After 25 CH 4 -CO 2 cycles, 10Fe5Ni@Zr has a higher H 2 space-time yield than 10Fe0Ni@Zr (20 mmol s À1 kg À1FeþNi vs. 15 mmol s À1 kg À1 FeþNi ), a 2.6 times higher CO yield (57 mmol s À1 kg À1 FeþNi ) and lower deactivation. This improvement has two reasons: (i) CH 4 activation over Ni leading to cracking, (ii) product hydrogen causing deeper FeO reduction. Deactivation follows from accumulated carbon, non-reactive for CO 2 .On Ni and Fe sites, carbon can be removed by lattice oxygen or CO 2 , yielding more CO compared to the theoretical value for Fe oxidation. However, carbon that migrates away from the metals requires oxygen for removal, which restores the activity of the Ni-containing samples.carbon deposit, CH 4 -CO 2 redox cycling, chemical looping, CO 2 reduction, stability | INTRODUCTIONCarbon dioxide (CO 2 ) and methane (CH 4 ) are two common greenhouse gases leading to climate change. [1][2][3] In view of environmental protection, the effective utilization of these two compounds is of global concern. [4][5][6] Fortunately, chemical looping provides a new framework to realize CO 2 reduction and CH 4 utilization with low exergy penalty and low economic cost. [7][8][9][10] In a chemical looping process, CO 2 and CH 4 can be converted into valuable chemicals through the cyclic reaction and regeneration of a looping mediator. For

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“…Moreover, the exothermic heat generated during the regeneration of the reduced oxygen carriers can be used to produce steam for electricity generation, as shown in Figure 1. 7 Coal direct chemical looping (CDCL) is a manifestation of the conventional CLC process configuration developed at the Ohio State University (OSU) that utilizes a countercurrent moving bed reducer reactor using iron-based oxygen carriers. 8−10 In this process, the oxygen carrier particles move downward in the reducer under the influence of gravity whereas the gases move in the opposite direction from the bottom to the top and hence a countercurrent moving bed.…”

Section: Introductionmentioning

confidence: 99%

“…In this way, a pure stream of CO 2 is released from the reducer without the need for any downstream processing units to generate the capture-ready CO 2 stream. Moreover, the exothermic heat generated during the regeneration of the reduced oxygen carriers can be used to produce steam for electricity generation, as shown in Figure …”

Section: Introductionmentioning

confidence: 99%

Coal-Direct Chemical Looping Process with In Situ Sulfur Capture for Energy Generation Using Ca–Cu Oxygen Carriers

Joshi

Pottimurthy

Shah

et al. 2021

Ind. Eng. Chem. Res.

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A novel process scheme for energy production from coal with in situ sulfur capture, known as the coal-direct chemical looping process with sulfur removal (CDCL-SR), is proposed in this study. The proposed process utilizes multimetal oxide comprising the oxides of copper and calcium supported on inert SiC as the oxygen carrier to combust coal and simultaneously produce separate streams of CO2 and SO2, thus eliminating the need for downstream processing units. The computational software ASPEN Plus has been utilized to carry out detailed reactor simulations along with a thorough thermodynamic analysis of the process. The reactor modeling results indicate that the moving bed reducer can effectively convert all the carbon present in coal into CO2 while capturing sulfur in the form of calcium sulfide in the reduced oxygen carrier. The reduced oxygen carrier can in turn be oxidized using steam to produce pure SO2 stream that can be readily utilized. Process simulation results indicate that the proposed CDCL-SR process has thermal and exergy efficiencies of 86 and 51%, respectively, significantly higher than both the conventional pulverized coal Rankine cycle and Fe-based CDCL processes.

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Chemical looping-A perspective on the next-gen technology for efficient fossil fuel utilization

Cited by 66 publications

References 173 publications

Thermal plasma-aided chemical looping carbon dioxide dissociation for fuel production from aluminium particles

Thermal plasma-aided chemical looping carbon dioxide dissociation for fuel production from aluminium particles

Separate H₂ and CO production from CH₄‐CO₂ cycling of Fe‐Ni

Coal-Direct Chemical Looping Process with In Situ Sulfur Capture for Energy Generation Using Ca–Cu Oxygen Carriers

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Chemical looping-A perspective on the next-gen technology for efficient fossil fuel utilization

Cited by 66 publications

References 173 publications

Thermal plasma-aided chemical looping carbon dioxide dissociation for fuel production from aluminium particles

Thermal plasma-aided chemical looping carbon dioxide dissociation for fuel production from aluminium particles

Separate H2 and CO production from CH4‐CO2 cycling of Fe‐Ni

Coal-Direct Chemical Looping Process with In Situ Sulfur Capture for Energy Generation Using Ca–Cu Oxygen Carriers

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Separate H₂ and CO production from CH₄‐CO₂ cycling of Fe‐Ni