NDLI: Equilibrium Analyses of H2S Conversion during Hot Gas Desulfurization

Content Provider	IEEE Xplore Digital Library
Author	Zhanlong Song Mingyao Zhang
Copyright Year	2010
Abstract	The complexity of the coal gas compositions and their reactions properties affect the sulfidation of H2S with calcium-based-based sorbents, which is not easy to measure quantificationally. Using the ASPEN PLUS software, the reaction degrees between coal gas compositions can be obtained easily. The results show that the thermal decomposition of H2S is affected by temperature greatly and the higher the temperature, the less stable H2S is. Adding the H2 composite will increase the stability of H2S. When the H2 molar content is higher than 2.5 %, the H2S hardly dissociate. The higher the pressure, the less of H2S decomposes. CO2 and CO both can react with H2S resulting to the decrease of H2S equilibrium concentration. The water-gas-shift reaction is the most important one among the coal gas reactions. If H2 and CO2 are present in the reaction gas, CO and H2O will appear in the off-gas largely and hence the CO and H2O compound can not be introduced to the gaseous mixtures on the experiment of H2S with calcium-based sorbents to some extent.
Starting Page	1
Ending Page	4
File Size	234523
Page Count	4
File Format	PDF
ISBN	9781424447121
ISSN	21517622
DOI	10.1109/ICBBE.2010.5516020
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-18
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Water Gases Temperature distribution Thermal factors Pollution Hydrogen Thermal decomposition Combustion Power generation Power engineering and energy
Content Type	Text
Resource Type	Article

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