NDLI: Simultaneous removal of H$_{2}$S and COS using Zn-based solid sorbents in the bench-scale continuous hot gas desulfurization system integrated with a coal gasifier

Content Provider	Springer Nature Link
Author	Park, Young Cheol Jo, Sung Ho Ryu, Ho Jung Moon, Jong Ho Yi, Chang Keun Yoon, Yongseung Baek, Jeom In
Copyright Year	2012
Abstract	A bench-scale continuous hot gas desulfurization system using Zn-based solid sorbents was developed to remove H$_{2}$S and COS simultaneously in a 110 Nm$^{3}$/h of real coal-gasified syngas. The bench-scale unit, which consisted of a fast fluidized-bed type desulfurizer and a bubbling fluidized-bed type regenerator, was integrated with a 3 ton/day-scale coal gasifier installed at the Institute for Advanced Engineering. The solid sorbents, which consisted of 50 wt% of ZnO for sulfides sorption and 50 wt% of supporters for mechanical strength, were manufactured by a spray drying method and supplied by Korea Electric Power Corporation Research Institute. The bench-scale unit was designed to operate at the high temperature of above 500 °C and the high pressure of 19 kg$_{f}$/cm$^{2}$ gauge. Integration of the bench-scale unit with a coal gasifier was first performed to investigate the operation stability of the integrated system. And the long-term continuous operation above 30 h was performed to analyze the desulfurization performance of the bench-scale unit. The concentration of both H$_{2}$S and COS in the syngas was measured by a continuous UV gas analyzer and an online gas chromatograph and that of both H$_{2}$S and COS after desulfurization was measured by an online gas chromatograph. Through the above 30-h continuous operation, the sulfur removal reached up to 99.9%.
Starting Page	1812
Ending Page	1816
Page Count	5
File Format	PDF
ISSN	02561115
Journal	Korean Journal of Chemical Engineering
Volume Number	29
Issue Number	12
e-ISSN	19757220
Language	English
Publisher	Springer US
Publisher Date	2012-06-02
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Hot Gas Desulfurization Solid Sorbents Bench-scale Unit Integration with a Coal Gasifier IGCC Industrial Chemistry/Chemical Engineering Catalysis Materials Science Biotechnology
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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Simultaneous removal of H2S and COS using Zn-based solid sorbents in the bench-scale continuous hot gas desulfurization system integrated with a coal gasifier

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Simultaneous removal of H$_{2}$S and COS using Zn-based solid sorbents in the bench-scale continuous hot gas desulfurization system integrated with a coal gasifier

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