loading page

Acquiring real kinetics of reactions in inhibitory atmosphere containing product gases using micro fluidized bed
  • +6
  • Xuejing Liu,
  • Wenqian Hao,
  • Kexin Wang,
  • Yingche Wang,
  • Ping An,
  • Hong Zhang,
  • Junrong Yue,
  • Dingrong Bai,
  • Guangwen Xu
Xuejing Liu
Shenyang University of Chemical Technology
Author Profile
Wenqian Hao
Shenyang University of Chemical Technology
Author Profile
Kexin Wang
Shenyang University of Chemical Technology
Author Profile
Yingche Wang
Shenyang University of Chemical Technology
Author Profile
Ping An
Shenyang University of Chemical Technology
Author Profile
Hong Zhang
Shenyang University of Chemical Technology
Author Profile
Junrong Yue
Institute of Process Engineering Chinese Academy of Sciences
Author Profile
Dingrong Bai
Shenyang University of Chemical Technology
Author Profile
Guangwen Xu
Shenyang University of Chemical Technology
Author Profile

Abstract

The study proposed an isotopes-tagging method for investigation of reactions under the atmosphere of product gas. To illustrate this method, the calcination kinetics of calcium carbonate Ca13CO3 in CO2 atmospheres were investigated by monitoring 13CO2 produced using a micro fluidized bed reaction analyzer (MFBRA). The results demonstrated that the presence of CO2 in the reaction atmosphere increases the apparent activation energy. The increase in the apparent activation energy is, however, significantly overestimated by the TGA because of the excessive suppression by stagnated product gas inside the sample crucible. Comparatively, the results from the MFBRA are due primarily to the thermal equilibrium limitation, because the gas diffusion in the MFBRA is essentially eliminated. It is thus concluded that the MFBRA is quite capable of acquiring the real kinetics of reactions in such inhibitory atmospheres. atmosphere.

Peer review status:Published

03 Nov 2020Submitted to AIChE Journal
04 Nov 2020Submission Checks Completed
04 Nov 2020Assigned to Editor
16 Nov 2020Reviewer(s) Assigned
28 Feb 2021Editorial Decision: Revise Major
11 Apr 20211st Revision Received
13 Apr 2021Submission Checks Completed
13 Apr 2021Assigned to Editor
19 Apr 2021Reviewer(s) Assigned
04 May 2021Editorial Decision: Accept
17 May 2021Published in AIChE Journal. 10.1002/aic.17325