Numerical simulation of gasification: Effect of injection velocity on the feedstock conversion and syngas composition

Syed Shabbar Raza, Isam Janajreh

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Gasification is a thermochemical pathway that is use to convert feedstock into combustible syngas (CO and H2). In the following research a computational fluid dynamics study is performed to model the gasification of discrete coal particles stream using air as oxidizer. The main objective of the study is to understand the effect of the oxidizer's velocity on the conversion of coal particle and syngas composition. Initially the chemical composition of coal particle is measured using the proximate, ultimate and calorimetric analysis. The measured results are used to define the coal properties in the numerical simulation. Afterwards, a parametric study for inlet velocity of oxidizer is performed. The result shows that at lower velocities complete conversion of coal can be attained but at the same time the quality of syngas is degraded due to the formation of CO2 and H2O. On the other hand the increase in velocity tend to reduce the conversion of coal particle due to decrease in residence time in the gasifier. Further result of CO and H2 mole fraction, temperature and velocity contours are also presented.

Original languageBritish English
Title of host publicationProceedings of 2013 International Renewable and Sustainable Energy Conference, IRSEC 2013
Pages482-488
Number of pages7
DOIs
StatePublished - 2013
Event1st International Renewable and Sustainable Energy Conference, IRSEC 2013 - Ouarzazate, Morocco
Duration: 7 Mar 20139 Mar 2013

Publication series

NameProceedings of 2013 International Renewable and Sustainable Energy Conference, IRSEC 2013

Conference

Conference1st International Renewable and Sustainable Energy Conference, IRSEC 2013
Country/TerritoryMorocco
CityOuarzazate
Period7/03/139/03/13

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