2020
DOI: 10.1021/acs.energyfuels.0c00924
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Microfluidized Bed Thermogravimetry Combined with Mass Spectrometry (MFB-TG-MS) for Redox Kinetic Study of Oxygen Carrier

Abstract: Heterogeneous reduction/oxidation reactions in fluidization state play vital roles in chemical looping combustion (CLC) processes. A key task in studying heterogeneous reduction/oxidation reactions and developing CLC technology is to measure the heterogeneous redox kinetics of oxygen carrier particles in fluidizing state. Here we compared two methods to measure heterogeneous redox kinetics of fluidizing oxygen carrier particles by both the solid mass signal measured from the weight balance and the gas evolutio… Show more

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Cited by 8 publications
(6 citation statements)
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References 30 publications
(58 reference statements)
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“…Therefore, the mass change of the oxygen carrier particles and the change of the hydrogen content in the exhaust gas due to the reaction can be measured simultaneously. The detailed information on the MFB-TGA-MS can be found in the literature . The experimental procedure is the same as that in Section .…”
Section: Resultsmentioning
confidence: 99%
“…Therefore, the mass change of the oxygen carrier particles and the change of the hydrogen content in the exhaust gas due to the reaction can be measured simultaneously. The detailed information on the MFB-TGA-MS can be found in the literature . The experimental procedure is the same as that in Section .…”
Section: Resultsmentioning
confidence: 99%
“…Li et al compared two methods to measure heterogeneous redox kinetics of fluidizing oxygen carrier particles by both the solid mass signal measured from the weight balance and the gas evolution signal measured by mass spectroscopy. Microfluidized bed thermogravimetry combined with the mass spectrometry method (MFB-TG-MS) was used to measure the tail gas signal, and heterogeneous redox kinetics was obtained from the analysis of the tail gas signal [ 117 ].…”
Section: Applications To Biomassmentioning
confidence: 99%
“…The presence of steam is found to improve the CO 2 capture capacity of Ce-promoted CaO in carbonation, and this is further confirmed by experimental results. Li et al investigate the redox reaction kinetics of a Mn-based oxygen carrier with H 2 or air in a customized microfluidized bed thermogravimetry combined with mass spectrometry (MFB-TG-MS). Wang et al investigate the oxygen uncoupling property and reaction kinetics of a copper manganese composite oxygen carrier under the context of chemical looping air separation in a packed-bed reactor.…”
Section: Density Functional Theory (Dft) Calculation and Reaction Kin...mentioning
confidence: 99%
“…The presence of steam is found to improve the CO 2 capture capacity of Ce-promoted CaO in carbonation, and this is further confirmed by experimental results. Li et al18 investigate the redox reaction kinetics of a Mn-based oxygen carrier with H 2 or air in a customized microfluidized bed thermogravimetry combined with mass spectrometry (MFB-TG-MS).Five papers are included on this topic. Zhang et al21 report a kind of BaFe 1−x Sn x O 3−δ oxygen carrier for enhanced syngas production via chemical looping partial oxidation of methane, and the perovskite-type oxides demonstrate superior anticoke property during the cycling tests.…”
mentioning
confidence: 99%