A study of a regeneration reaction for desulfurization sorbents using natural Manganese Ore

Yeo Yoon, Byung Hee Chun, Yongseung Yun, Sung Hyun Kim

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Natural manganese ores were selected as the main active component for a non-zinc desulfurization sorbent used in the gas clean-up process of the integrated gasification combined cycle (IGCC) because of excellent H 2S removal efficiency and economical aspect. In this study, the regeneration characteristics of a sorbent after a desulfurization reaction was determined in a thermobalance reactor and a fixed bed reactor in the temperature range of 823-1123 K. A mixed gas of oxygen and nitrogen was used as the regeneration reaction gas for the manganese sorbent. According to an Mn-S-O phase diagram, the manganese sorbent has a low regeneration efficiency in medium temperautre due to the formation of MnS0 4 and the regeneration temperature must be over 1123 K. To improve this problem, ammonia and steam was added in the regeneration mixed gas. The effect of the new regeneration method was determined by XRD and difference of desulfurization through multi-cycle tests in a fixed bed reactor.

Original languageEnglish
Pages (from-to)835-841
Number of pages7
JournalJournal of Chemical Engineering of Japan
Volume37
Issue number7
DOIs
Publication statusPublished - 2004 Jul 1

Fingerprint

Manganese
Desulfurization
Sorbents
Ores
Gases
Steam
Gasification
Ammonia
Phase diagrams
Nitrogen
Oxygen
Temperature

Keywords

  • Ammonium sulfate
  • IGCC
  • Natural manganese ore
  • Reaction
  • Regeneration

ASJC Scopus subject areas

  • Chemical Engineering(all)

Cite this

A study of a regeneration reaction for desulfurization sorbents using natural Manganese Ore. / Yoon, Yeo; Chun, Byung Hee; Yun, Yongseung; Kim, Sung Hyun.

In: Journal of Chemical Engineering of Japan, Vol. 37, No. 7, 01.07.2004, p. 835-841.

Research output: Contribution to journalArticle

@article{c6c8d8760dfe4a628d5d8de1aa52659a,
title = "A study of a regeneration reaction for desulfurization sorbents using natural Manganese Ore",
abstract = "Natural manganese ores were selected as the main active component for a non-zinc desulfurization sorbent used in the gas clean-up process of the integrated gasification combined cycle (IGCC) because of excellent H 2S removal efficiency and economical aspect. In this study, the regeneration characteristics of a sorbent after a desulfurization reaction was determined in a thermobalance reactor and a fixed bed reactor in the temperature range of 823-1123 K. A mixed gas of oxygen and nitrogen was used as the regeneration reaction gas for the manganese sorbent. According to an Mn-S-O phase diagram, the manganese sorbent has a low regeneration efficiency in medium temperautre due to the formation of MnS0 4 and the regeneration temperature must be over 1123 K. To improve this problem, ammonia and steam was added in the regeneration mixed gas. The effect of the new regeneration method was determined by XRD and difference of desulfurization through multi-cycle tests in a fixed bed reactor.",
keywords = "Ammonium sulfate, IGCC, Natural manganese ore, Reaction, Regeneration",
author = "Yeo Yoon and Chun, {Byung Hee} and Yongseung Yun and Kim, {Sung Hyun}",
year = "2004",
month = "7",
day = "1",
doi = "10.1252/jcej.37.835",
language = "English",
volume = "37",
pages = "835--841",
journal = "Journal of Chemical Engineering of Japan",
issn = "0021-9592",
publisher = "Society of Chemical Engineers, Japan",
number = "7",

}

TY - JOUR

T1 - A study of a regeneration reaction for desulfurization sorbents using natural Manganese Ore

AU - Yoon, Yeo

AU - Chun, Byung Hee

AU - Yun, Yongseung

AU - Kim, Sung Hyun

PY - 2004/7/1

Y1 - 2004/7/1

N2 - Natural manganese ores were selected as the main active component for a non-zinc desulfurization sorbent used in the gas clean-up process of the integrated gasification combined cycle (IGCC) because of excellent H 2S removal efficiency and economical aspect. In this study, the regeneration characteristics of a sorbent after a desulfurization reaction was determined in a thermobalance reactor and a fixed bed reactor in the temperature range of 823-1123 K. A mixed gas of oxygen and nitrogen was used as the regeneration reaction gas for the manganese sorbent. According to an Mn-S-O phase diagram, the manganese sorbent has a low regeneration efficiency in medium temperautre due to the formation of MnS0 4 and the regeneration temperature must be over 1123 K. To improve this problem, ammonia and steam was added in the regeneration mixed gas. The effect of the new regeneration method was determined by XRD and difference of desulfurization through multi-cycle tests in a fixed bed reactor.

AB - Natural manganese ores were selected as the main active component for a non-zinc desulfurization sorbent used in the gas clean-up process of the integrated gasification combined cycle (IGCC) because of excellent H 2S removal efficiency and economical aspect. In this study, the regeneration characteristics of a sorbent after a desulfurization reaction was determined in a thermobalance reactor and a fixed bed reactor in the temperature range of 823-1123 K. A mixed gas of oxygen and nitrogen was used as the regeneration reaction gas for the manganese sorbent. According to an Mn-S-O phase diagram, the manganese sorbent has a low regeneration efficiency in medium temperautre due to the formation of MnS0 4 and the regeneration temperature must be over 1123 K. To improve this problem, ammonia and steam was added in the regeneration mixed gas. The effect of the new regeneration method was determined by XRD and difference of desulfurization through multi-cycle tests in a fixed bed reactor.

KW - Ammonium sulfate

KW - IGCC

KW - Natural manganese ore

KW - Reaction

KW - Regeneration

UR - http://www.scopus.com/inward/record.url?scp=4644342423&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=4644342423&partnerID=8YFLogxK

U2 - 10.1252/jcej.37.835

DO - 10.1252/jcej.37.835

M3 - Article

VL - 37

SP - 835

EP - 841

JO - Journal of Chemical Engineering of Japan

JF - Journal of Chemical Engineering of Japan

SN - 0021-9592

IS - 7

ER -