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Title: Computational fluid dynamics simulations of a binary particle bed in a riser-based carbon stripper for chemical looping combustion

Abstract

Chemical-looping combustion (CLC) is a next generation combustion technology that shows great promise as a solution for the need of high-efficiency low-cost carbon capture from fossil fueled power plants. In this paper, numerical simulations are conducted of a binary particle bed associated with a coal-direct CLC system consisting of coal (represented by plastic beads) and oxygen carrier particles and validated against an experimental riser-based carbon stripper. The detailed particle dynamics and solid-gas and solid-solid interactions are investigated using the Lagrangian particle-tracking approach known as the discrete element method coupled with the computational fluid dynamics solution for the flow field. The simulation results of the fluidization behavior and the separation ratio of the particles are in excellent agreement with the experiment. In conclusion, a credible simulation of a binary particle bed is of particular importance for understanding the details of the fluidization behavior; the baseline simulation established in this work can be used as a tool for designing and optimizing the performance of such systems.

Authors:
 [1];  [2]
  1. National Energy Technology Lab. (NETL), Morgantown, WV (United States). Multiphase Flow Science Group
  2. Washington Univ., St. Louis, MO (United States). Dept. of Mechanical Engineering and Materials Science
Publication Date:
Research Org.:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
Sponsoring Org.:
USDOE Office of Fossil Energy (FE)
OSTI Identifier:
1461080
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Powder Technology
Additional Journal Information:
Journal Volume: 325; Journal Issue: C; Journal ID: ISSN 0032-5910
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Chemical looping combustion; Numerical simulation; Discrete element method; Fluidization; Binary particle bed; Carbon stripper

Citation Formats

Banerjee, Subhodeep, and Agarwal, Ramesh K. Computational fluid dynamics simulations of a binary particle bed in a riser-based carbon stripper for chemical looping combustion. United States: N. p., 2017. Web. doi:10.1016/j.powtec.2017.11.032.
Banerjee, Subhodeep, & Agarwal, Ramesh K. Computational fluid dynamics simulations of a binary particle bed in a riser-based carbon stripper for chemical looping combustion. United States. doi:10.1016/j.powtec.2017.11.032.
Banerjee, Subhodeep, and Agarwal, Ramesh K. Tue . "Computational fluid dynamics simulations of a binary particle bed in a riser-based carbon stripper for chemical looping combustion". United States. doi:10.1016/j.powtec.2017.11.032. https://www.osti.gov/servlets/purl/1461080.
@article{osti_1461080,
title = {Computational fluid dynamics simulations of a binary particle bed in a riser-based carbon stripper for chemical looping combustion},
author = {Banerjee, Subhodeep and Agarwal, Ramesh K.},
abstractNote = {Chemical-looping combustion (CLC) is a next generation combustion technology that shows great promise as a solution for the need of high-efficiency low-cost carbon capture from fossil fueled power plants. In this paper, numerical simulations are conducted of a binary particle bed associated with a coal-direct CLC system consisting of coal (represented by plastic beads) and oxygen carrier particles and validated against an experimental riser-based carbon stripper. The detailed particle dynamics and solid-gas and solid-solid interactions are investigated using the Lagrangian particle-tracking approach known as the discrete element method coupled with the computational fluid dynamics solution for the flow field. The simulation results of the fluidization behavior and the separation ratio of the particles are in excellent agreement with the experiment. In conclusion, a credible simulation of a binary particle bed is of particular importance for understanding the details of the fluidization behavior; the baseline simulation established in this work can be used as a tool for designing and optimizing the performance of such systems.},
doi = {10.1016/j.powtec.2017.11.032},
journal = {Powder Technology},
issn = {0032-5910},
number = C,
volume = 325,
place = {United States},
year = {2017},
month = {11}
}

Journal Article:
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