Utilisation of H2O and CO2 in coal particle gasification with an impact of temperature and particle size

Sudarti, T., Wang, L., Karimi, N. and Paul, M. C. (2020) Utilisation of H2O and CO2 in coal particle gasification with an impact of temperature and particle size. Energy and Fuels, 34(10), pp. 12841-12852. (doi: 10.1021/acs.energyfuels.0c02280)

Abstract

Aiming at improving the quality of syngas, the thermochemical behaviour of syngas formation during a single coal particle gasification process is investigated based on a validated numerical model. Initially, simulations of coal gasification with steam (H2O) are conducted in a reactor, and the results show that the steam gasification generally favours the production of H2 and CH4. However, a switch of agent to CO2 into the gasifier influences the gasification products having H2, CO and CH4. This is then prompted to the investigation of a mixture of H2O and CO2 agent in the reactor’s environment, and the results show a promising indicator in producing the overall better syngas quality. Moreover, the influence of the coal particle size and gasification temperature on the syngas production is studied. The results identify that the concentration of syngas products is higher when using smaller coal particles as the behaviour of heterogeneous reactions of CO formation is affected by the particle size. Finally, high temperature promoted the chemical reactions of the gasification process, resulting in the improved production of syngas.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Paul, Professor Manosh and WANG, LINWEI and Karimi, Dr Nader
• Authors: Sudarti, T., Wang, L., Karimi, N., and Paul, M. C.
• College/School: College of Science and Engineering > School of Engineering; College of Science and Engineering > School of Engineering > Systems Power and Energy
• Journal Name: Energy and Fuels
• Publisher: American Chemical Society
• ISSN: 0887-0624
• ISSN (Online): 1520-5029
• Published Online: 11 September 2020
• Copyright Holders: Copyright © 2020 American Chemical Society
• First Published: First published in Energy and Fuels 34(10):12841-12852
• Publisher Policy: Reproduced in accordance with the publisher copyright policy