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Title: Multiphase flow simulations of a moving fluidized bed regenerator in a carbon capture unit

Abstract

To accelerate the commercialization and deployment of carbon capture technologies, computational fluid dynamics (CFD)-based tools may be used to model and analyze the performance of carbon capture devices. This work presents multiphase CFD-based flow simulations for the regeneration device responsible for extracting CO2 from CO2-loaded sorbent particles before the particles are recycled. The use of solid particle sorbents in this design is a departure from previously reported systems, where aqueous sorbents are employed. Another new feature is the inclusion of a series of perforated plates along the regenerator height. The influence of these plates on sorbent distribution is examined for varying sorbent holdup, fluidizing gas velocity, and particle size. The residence time distribution of sorbents is also measured to classify the low regime as plug flow or well-mixed flow. The purpose of this work is to better understand the sorbent flow characteristics before reaction kinetics of CO2 desorption can be implemented.

Authors:
 [1];  [1];  [1];  [2];  [1]
  1. Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
  2. National Energy Technology Laboratory (NETL), Pittsburgh, PA, and Morgantown, WV (United States)
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1167636
Report Number(s):
PNNL-SA-91136
Journal ID: ISSN 0032-5910; AA9010100
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Journal Name:
Powder Technology
Additional Journal Information:
Journal Volume: 265; Journal ID: ISSN 0032-5910
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 01 COAL, LIGNITE, AND PEAT

Citation Formats

Sarkar, Avik, Pan, Wenxiao, Suh, Dong-Myung, Huckaby, E. D., and Sun, Xin. Multiphase flow simulations of a moving fluidized bed regenerator in a carbon capture unit. United States: N. p., 2014. Web. doi:10.1016/j.powtec.2014.01.031.
Sarkar, Avik, Pan, Wenxiao, Suh, Dong-Myung, Huckaby, E. D., & Sun, Xin. Multiphase flow simulations of a moving fluidized bed regenerator in a carbon capture unit. United States. https://doi.org/10.1016/j.powtec.2014.01.031
Sarkar, Avik, Pan, Wenxiao, Suh, Dong-Myung, Huckaby, E. D., and Sun, Xin. 2014. "Multiphase flow simulations of a moving fluidized bed regenerator in a carbon capture unit". United States. https://doi.org/10.1016/j.powtec.2014.01.031.
@article{osti_1167636,
title = {Multiphase flow simulations of a moving fluidized bed regenerator in a carbon capture unit},
author = {Sarkar, Avik and Pan, Wenxiao and Suh, Dong-Myung and Huckaby, E. D. and Sun, Xin},
abstractNote = {To accelerate the commercialization and deployment of carbon capture technologies, computational fluid dynamics (CFD)-based tools may be used to model and analyze the performance of carbon capture devices. This work presents multiphase CFD-based flow simulations for the regeneration device responsible for extracting CO2 from CO2-loaded sorbent particles before the particles are recycled. The use of solid particle sorbents in this design is a departure from previously reported systems, where aqueous sorbents are employed. Another new feature is the inclusion of a series of perforated plates along the regenerator height. The influence of these plates on sorbent distribution is examined for varying sorbent holdup, fluidizing gas velocity, and particle size. The residence time distribution of sorbents is also measured to classify the low regime as plug flow or well-mixed flow. The purpose of this work is to better understand the sorbent flow characteristics before reaction kinetics of CO2 desorption can be implemented.},
doi = {10.1016/j.powtec.2014.01.031},
url = {https://www.osti.gov/biblio/1167636}, journal = {Powder Technology},
issn = {0032-5910},
number = ,
volume = 265,
place = {United States},
year = {Wed Oct 01 00:00:00 EDT 2014},
month = {Wed Oct 01 00:00:00 EDT 2014}
}