Modelling and simulation for extra heavy oil gasification on entrained flow gasifier

Hiroaki Watanabe, Maromu Otaka, Saburo Hara, Masami Ashizawa, Kazuhiro Kidoguchi, Jun Inumaru

Research output: Chapter in Book/Report/Conference proceedingConference contribution

13 Citations (Scopus)

Abstract

The objective of this study is to develop an evaluation tool for a design and performance of an extra heavy oil gasifier by a numerical simulation technique. The modelling and the numerical simulation for the extra heavy oil gasification on the 2.4 tons/day entrained flow gasifier of CRIEPI and described in this paper. The gas phase properties are calculated by three dimensional time-mean Eulerian conservation equations, in addition to the k-ε turbulence model. The fuel droplet behavior is modelled via a Lagrangian particle tracking approach. Four reaction processes are modelled in the present paper: atomization (micro-explosion), pyrolysis, coke gasification reaction, and gaseous phase reaction. As a result of the simulation, in a relationship between an oxygen ratio of the gasifier and the gasifier performance, such as heating value of the product gas, carbon conversion efficiency are presented. Distribution of gas temperature and gas composition in the gasifier, and the product gas composition are also presented. Comparison between the computational and the experimental results shows that the most features of the gasifier performance have been captured accurately by the computational procedure. The numerical simulation approach is very useful for the assessment of gasification performance, operation support and optimization of the gasifier design.

Original languageEnglish
Title of host publicationProceedings of the 2002 International Joint Power Generation Conference
PublisherAmerican Society of Mechanical Engineers
Pages667-674
Number of pages8
ISBN (Print)0791836177, 9780791836170
DOIs
Publication statusPublished - 2002
EventProceedings of the IJPGC 2002 International Joint Power Generation Conference - Scottsdale, AZ, United States
Duration: Jun 24 2002Jun 26 2002

Publication series

NameProceedings of the 2002 International Joint Power Generation Conference

Other

OtherProceedings of the IJPGC 2002 International Joint Power Generation Conference
CountryUnited States
CityScottsdale, AZ
Period6/24/026/26/02

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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  • Cite this

    Watanabe, H., Otaka, M., Hara, S., Ashizawa, M., Kidoguchi, K., & Inumaru, J. (2002). Modelling and simulation for extra heavy oil gasification on entrained flow gasifier. In Proceedings of the 2002 International Joint Power Generation Conference (pp. 667-674). (Proceedings of the 2002 International Joint Power Generation Conference). American Society of Mechanical Engineers. https://doi.org/10.1115/ijpgc2002-26062