Modeling of Sulfided Zinc Titanate Regeneration in a Fluidized-Bed Reactor. 1. Determination of the Solid Conversion Rate Model Parameters

J. T. Konttinen*, C. A.P. Zevenhoven, K. P. Yrjas, M. M. Hupa

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

17 Citations (Scopus)

Abstract

Regenerable mixed metal oxide sorbents are prime candidates for the removal of hydrogen sulfide (a major pollutant) from the hot coal gas in the simplified integrated gasification combined cycle processes. As part of this sulfur removal process development, reactor models are needed for scale-up. It is essential for this work to apply a reliable and simple modeling correlation for the conversion rate of zinc sulfide or oxygen in the regeneration reaction. The fit of such a model, assuming uniform conversion of the ZnS, was obtained from ambient pressure thermogravimetric analyzer test data with sulfided zinc titanate samples. An activation energy of about 140 kJ/ mol was obtained for the regeneration reaction rate constant.

Original languageEnglish
Pages (from-to)5432-5438
Number of pages7
JournalIndustrial and Engineering Chemistry Research
Volume36
Issue number12
DOIs
Publication statusPublished - Dec 1997
MoE publication typeA1 Journal article-refereed

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