To main content

A comprehensive model for char particle conversion in environments containing O2 and CO2

Abstract

In this work, conversion of char is studied in a simulation code that includes a simplified heterogeneous adsorption–desorption reaction mechanism for char chemical reactivity and uses GRI-Mech 3.0 as the chemical kinetic mechanism that describes the impact of homogeneous reactions. Besides sub-models for the consequences of chemical reactions, a mode of char particle conversion sub-model is included that describes how particle size and apparent density vary with mass loss as well as a radiation sub-model that describes the radiant exchange of energy between the char particle and surrounding particles and walls. The code is transient and zero dimensional in space, and designed to be used both as a stand-alone gasification/combustion code and as a sub-model for heterogeneous reactions of solid particles in a CFD code.

Category

Academic article

Client

  • Research Council of Norway (RCN) / 231444
  • Research Council of Norway (RCN) / 193816

Language

English

Author(s)

Affiliation

  • Norwegian University of Science and Technology
  • SINTEF Energy Research / Termisk energi
  • Stanford University

Year

2015

Published in

Combustion and Flame

ISSN

0010-2180

Publisher

Elsevier

Volume

162

Issue

4

Page(s)

1455 - 1463

View this publication at Cristin