CO2 gasification rate analysis and modeling under high CO2 partial pressure conditions

Hiroaki Watanabe, Satoshi Umemoto, Shiro Kajitani, Saburo Hara, Hisao Makino

Research output: Contribution to journalConference article

Abstract

Coal char was gasified with carbon dioxide using a PDTF and TGA at high temperature and pressure to model gasification reaction rate by using Langmuir-Hinshelwood equation. Test conditions of temperature and partial pressure of the gasifying agent were determined to simulate the conditions in the O2/CO2 blown entrained flow coal gasifiers. As results, the gasification reaction rate increases with the increase carbon dioxide partial pressure, although the effect of the partial pressure was suppressed in the region where the partial pressure of carbon dioxide was relatively high. It is observed that the produced carbon monoxide gas acts to be an inhibitor against the gasification reaction and the effect was suppressed as the gaseous temperature increased. It is confirmed that these characteristics can be appropriately expressed by the Langmuir-Hinshelwood equation expression.

Original languageEnglish
JournalACS National Meeting Book of Abstracts
Publication statusPublished - Dec 1 2010
Externally publishedYes
Event239th ACS National Meeting and Exposition - San Francisco, CA, United States
Duration: Mar 21 2010Mar 25 2010

Fingerprint

Gasification
Partial pressure
Carbon Dioxide
Carbon dioxide
Coal
Reaction rates
Carbon Monoxide
Carbon monoxide
Temperature
Gases

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

CO2 gasification rate analysis and modeling under high CO2 partial pressure conditions. / Watanabe, Hiroaki; Umemoto, Satoshi; Kajitani, Shiro; Hara, Saburo; Makino, Hisao.

In: ACS National Meeting Book of Abstracts, 01.12.2010.

Research output: Contribution to journalConference article

@article{ad32b2c750ba4ca5b04358faf58114a5,
title = "CO2 gasification rate analysis and modeling under high CO2 partial pressure conditions",
abstract = "Coal char was gasified with carbon dioxide using a PDTF and TGA at high temperature and pressure to model gasification reaction rate by using Langmuir-Hinshelwood equation. Test conditions of temperature and partial pressure of the gasifying agent were determined to simulate the conditions in the O2/CO2 blown entrained flow coal gasifiers. As results, the gasification reaction rate increases with the increase carbon dioxide partial pressure, although the effect of the partial pressure was suppressed in the region where the partial pressure of carbon dioxide was relatively high. It is observed that the produced carbon monoxide gas acts to be an inhibitor against the gasification reaction and the effect was suppressed as the gaseous temperature increased. It is confirmed that these characteristics can be appropriately expressed by the Langmuir-Hinshelwood equation expression.",
author = "Hiroaki Watanabe and Satoshi Umemoto and Shiro Kajitani and Saburo Hara and Hisao Makino",
year = "2010",
month = "12",
day = "1",
language = "English",
journal = "ACS National Meeting Book of Abstracts",
issn = "0065-7727",
publisher = "American Chemical Society",

}

TY - JOUR

T1 - CO2 gasification rate analysis and modeling under high CO2 partial pressure conditions

AU - Watanabe, Hiroaki

AU - Umemoto, Satoshi

AU - Kajitani, Shiro

AU - Hara, Saburo

AU - Makino, Hisao

PY - 2010/12/1

Y1 - 2010/12/1

N2 - Coal char was gasified with carbon dioxide using a PDTF and TGA at high temperature and pressure to model gasification reaction rate by using Langmuir-Hinshelwood equation. Test conditions of temperature and partial pressure of the gasifying agent were determined to simulate the conditions in the O2/CO2 blown entrained flow coal gasifiers. As results, the gasification reaction rate increases with the increase carbon dioxide partial pressure, although the effect of the partial pressure was suppressed in the region where the partial pressure of carbon dioxide was relatively high. It is observed that the produced carbon monoxide gas acts to be an inhibitor against the gasification reaction and the effect was suppressed as the gaseous temperature increased. It is confirmed that these characteristics can be appropriately expressed by the Langmuir-Hinshelwood equation expression.

AB - Coal char was gasified with carbon dioxide using a PDTF and TGA at high temperature and pressure to model gasification reaction rate by using Langmuir-Hinshelwood equation. Test conditions of temperature and partial pressure of the gasifying agent were determined to simulate the conditions in the O2/CO2 blown entrained flow coal gasifiers. As results, the gasification reaction rate increases with the increase carbon dioxide partial pressure, although the effect of the partial pressure was suppressed in the region where the partial pressure of carbon dioxide was relatively high. It is observed that the produced carbon monoxide gas acts to be an inhibitor against the gasification reaction and the effect was suppressed as the gaseous temperature increased. It is confirmed that these characteristics can be appropriately expressed by the Langmuir-Hinshelwood equation expression.

UR - http://www.scopus.com/inward/record.url?scp=79951533552&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79951533552&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:79951533552

JO - ACS National Meeting Book of Abstracts

JF - ACS National Meeting Book of Abstracts

SN - 0065-7727

ER -