Formation and behaviour of nitrogen compounds in an IGCC process

Jukka Leppälahti

Research output: Contribution to journalArticleScientificpeer-review

31 Citations (Scopus)

Abstract

A summary of the latest available information on the formation and decomposition of nitrogen compounds in gasification, hot-gas cleaning, and gas combustion is presented. When nitrogenous fuels are gasified, nitrogen compounds are formed in gas from fuel nitrogen. In pressurized high-temperature fluidized-bed and entrained-bed gasifiers, NH3 is the primary nitrogen compound. Very little HCN is formed in these types of gasifier. The most important factors correlating with the NH3 content of the gas seem to be gas temperature and fuel quality. The NH3 content of the gas can be reduced by catalysts or by feeding oxidizers to the gas. CH4 reduces the decomposition rate of NH3.

Original languageEnglish
Pages (from-to)65 - 70
Number of pages6
JournalBioresource Technology
Volume46
Issue number1 - 2
DOIs
Publication statusPublished - 1993
MoE publication typeA1 Journal article-refereed

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Nitrogen Compounds
Nitrogen compounds
nitrogen compound
Gases
gas
decomposition
Decomposition
Gasification
Fluidized beds
catalyst
Cleaning
Nitrogen
nitrogen
Temperature
Catalysts

Cite this

Leppälahti, Jukka. / Formation and behaviour of nitrogen compounds in an IGCC process. In: Bioresource Technology. 1993 ; Vol. 46, No. 1 - 2. pp. 65 - 70.
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Formation and behaviour of nitrogen compounds in an IGCC process. / Leppälahti, Jukka.

In: Bioresource Technology, Vol. 46, No. 1 - 2, 1993, p. 65 - 70.

Research output: Contribution to journalArticleScientificpeer-review

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AB - A summary of the latest available information on the formation and decomposition of nitrogen compounds in gasification, hot-gas cleaning, and gas combustion is presented. When nitrogenous fuels are gasified, nitrogen compounds are formed in gas from fuel nitrogen. In pressurized high-temperature fluidized-bed and entrained-bed gasifiers, NH3 is the primary nitrogen compound. Very little HCN is formed in these types of gasifier. The most important factors correlating with the NH3 content of the gas seem to be gas temperature and fuel quality. The NH3 content of the gas can be reduced by catalysts or by feeding oxidizers to the gas. CH4 reduces the decomposition rate of NH3.

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