Role of Water Vapor in Oxidative Decomposition of Calcium Sulfide

Shengji Wu, Azhar Uddin, Shinsuke Nagamine, Eiji Sasaoka

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

Abstract

In gasifiers of coal, decomposition of limestone into CaO and CO2 depend on the concentration and pressure of CO2 and the temperature. The basic characters of the oxidative decomposition of CaS were studied using reagent grade CaS to determine a method for perfect conversion of CaS formed from a natural lime to CaSO4. The role of H2O in the oxidative decomposition of CaS carried out using a flow-type thermogravimetric apparatus at 1 atm was studied. At 900°C, the presence of H2O drastically accelerated the decomposition of CaS with O2. CaS directly reacted with H2O at 800°-1000°C and formed CaO, SO2, and H2. The evolution of SO2 in the 10% H2O-1% O2-He system indicated that there is a synergistic effect of H2O and O2 on the oxidative decomposition of CaS. H2O played an important role in the oxidative decomposition of CaS even if the O2 concentration was high.

Original languageEnglish
Title of host publicationACS Division of Fuel Chemistry, Preprints
Pages405-406
Number of pages2
Volume48
Edition1
Publication statusPublished - Mar 2003
EventProceedings of the 2003 SPE/EPA/DOE Exploration Production Environmental Conference - San Antonio, TX, United States
Duration: Mar 10 2003Mar 12 2003

Other

OtherProceedings of the 2003 SPE/EPA/DOE Exploration Production Environmental Conference
CountryUnited States
CitySan Antonio, TX
Period3/10/033/12/03

Fingerprint

Water vapor
Calcium
Decomposition
Limestone
Lime
Sulfides
Coal
Temperature

ASJC Scopus subject areas

  • Energy(all)

Cite this

Wu, S., Uddin, A., Nagamine, S., & Sasaoka, E. (2003). Role of Water Vapor in Oxidative Decomposition of Calcium Sulfide. In ACS Division of Fuel Chemistry, Preprints (1 ed., Vol. 48, pp. 405-406)

Role of Water Vapor in Oxidative Decomposition of Calcium Sulfide. / Wu, Shengji; Uddin, Azhar; Nagamine, Shinsuke; Sasaoka, Eiji.

ACS Division of Fuel Chemistry, Preprints. Vol. 48 1. ed. 2003. p. 405-406.

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

Wu, S, Uddin, A, Nagamine, S & Sasaoka, E 2003, Role of Water Vapor in Oxidative Decomposition of Calcium Sulfide. in ACS Division of Fuel Chemistry, Preprints. 1 edn, vol. 48, pp. 405-406, Proceedings of the 2003 SPE/EPA/DOE Exploration Production Environmental Conference, San Antonio, TX, United States, 3/10/03.
Wu S, Uddin A, Nagamine S, Sasaoka E. Role of Water Vapor in Oxidative Decomposition of Calcium Sulfide. In ACS Division of Fuel Chemistry, Preprints. 1 ed. Vol. 48. 2003. p. 405-406
Wu, Shengji ; Uddin, Azhar ; Nagamine, Shinsuke ; Sasaoka, Eiji. / Role of Water Vapor in Oxidative Decomposition of Calcium Sulfide. ACS Division of Fuel Chemistry, Preprints. Vol. 48 1. ed. 2003. pp. 405-406
@inproceedings{50e81597e1274b1ba7cb31a80994ceb3,
title = "Role of Water Vapor in Oxidative Decomposition of Calcium Sulfide",
abstract = "In gasifiers of coal, decomposition of limestone into CaO and CO2 depend on the concentration and pressure of CO2 and the temperature. The basic characters of the oxidative decomposition of CaS were studied using reagent grade CaS to determine a method for perfect conversion of CaS formed from a natural lime to CaSO4. The role of H2O in the oxidative decomposition of CaS carried out using a flow-type thermogravimetric apparatus at 1 atm was studied. At 900°C, the presence of H2O drastically accelerated the decomposition of CaS with O2. CaS directly reacted with H2O at 800°-1000°C and formed CaO, SO2, and H2. The evolution of SO2 in the 10{\%} H2O-1{\%} O2-He system indicated that there is a synergistic effect of H2O and O2 on the oxidative decomposition of CaS. H2O played an important role in the oxidative decomposition of CaS even if the O2 concentration was high.",
author = "Shengji Wu and Azhar Uddin and Shinsuke Nagamine and Eiji Sasaoka",
year = "2003",
month = "3",
language = "English",
volume = "48",
pages = "405--406",
booktitle = "ACS Division of Fuel Chemistry, Preprints",
edition = "1",

}

TY - GEN

T1 - Role of Water Vapor in Oxidative Decomposition of Calcium Sulfide

AU - Wu, Shengji

AU - Uddin, Azhar

AU - Nagamine, Shinsuke

AU - Sasaoka, Eiji

PY - 2003/3

Y1 - 2003/3

N2 - In gasifiers of coal, decomposition of limestone into CaO and CO2 depend on the concentration and pressure of CO2 and the temperature. The basic characters of the oxidative decomposition of CaS were studied using reagent grade CaS to determine a method for perfect conversion of CaS formed from a natural lime to CaSO4. The role of H2O in the oxidative decomposition of CaS carried out using a flow-type thermogravimetric apparatus at 1 atm was studied. At 900°C, the presence of H2O drastically accelerated the decomposition of CaS with O2. CaS directly reacted with H2O at 800°-1000°C and formed CaO, SO2, and H2. The evolution of SO2 in the 10% H2O-1% O2-He system indicated that there is a synergistic effect of H2O and O2 on the oxidative decomposition of CaS. H2O played an important role in the oxidative decomposition of CaS even if the O2 concentration was high.

AB - In gasifiers of coal, decomposition of limestone into CaO and CO2 depend on the concentration and pressure of CO2 and the temperature. The basic characters of the oxidative decomposition of CaS were studied using reagent grade CaS to determine a method for perfect conversion of CaS formed from a natural lime to CaSO4. The role of H2O in the oxidative decomposition of CaS carried out using a flow-type thermogravimetric apparatus at 1 atm was studied. At 900°C, the presence of H2O drastically accelerated the decomposition of CaS with O2. CaS directly reacted with H2O at 800°-1000°C and formed CaO, SO2, and H2. The evolution of SO2 in the 10% H2O-1% O2-He system indicated that there is a synergistic effect of H2O and O2 on the oxidative decomposition of CaS. H2O played an important role in the oxidative decomposition of CaS even if the O2 concentration was high.

UR - http://www.scopus.com/inward/record.url?scp=0344984408&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0344984408&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:0344984408

VL - 48

SP - 405

EP - 406

BT - ACS Division of Fuel Chemistry, Preprints

ER -