Transient Reacting Flow Simulations of Chemical-Looping Combustion Reactors

Guanglei Ma, Subhodeep Banerjee, Ramesh K. Agarwal

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

1 Scopus citations

Abstract

Chemical-looping combustion (CLC) has shown great promise in addressing the need for high-efficiency low-cost carbon capture from fossil-fueled power plants. In recent years, there has been a focus on developing high-fidelity simulations of the CLC process in the literature to facilitate the transition of this technology from laboratory- and pilot-scale projects to deployment on an industrial scale. Detailed computational fluid dynamics (CFD) simulations of two CLC reactors are presented in this chapter. The first case employs the Eulerian–Eulerian approach to investigate hot flow behavior with chemical reactions in a packed bed reactor with ilmenite oxygen carrier and carbon monoxide simulating the exact experimental conditions. Previous simulations of this setup were conducted for cold flow without chemical reactions. After 60 minutes of simulation, the results are in excellent agreement with experimental data. The second case is an Eulerian–Lagrangian model of a bubbling bed CLC reactor with hematite oxygen carrier and methane. The experiment is modeled to scale and particle interactions are calculated using the Discrete Element Method (DEM) coupled with CFD to solve the flow field. Owing to the computational demands of DEM, only the simulation start-up is investigated and the results show reasonable agreement with the experiment.

Original languageEnglish
Title of host publicationEnergy, Environment, and Sustainability
PublisherSpringer Nature
Pages219-235
Number of pages17
DOIs
StatePublished - 2019

Publication series

NameEnergy, Environment, and Sustainability
ISSN (Print)2522-8366
ISSN (Electronic)2522-8374

Keywords

  • Chemical reactions
  • Chemical-looping combustion
  • Eulerian–Eulerian simulation
  • Eulerian–Lagrangian simulation
  • Ilmenite

Fingerprint

Dive into the research topics of 'Transient Reacting Flow Simulations of Chemical-Looping Combustion Reactors'. Together they form a unique fingerprint.

Cite this