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http://dx.doi.org/10.7316/KHNES.2014.25.4.355

Effect of Pre-treatment Method on Reactivity of WGS Catalyst for SEWGS System  

Ryu, Hojung (Korea Institute of Energy Research)
Park, Jihye (Korea Institute of Energy Research)
Lee, Dongho (Korea Institute of Energy Research)
Shun, Dowon (Korea Institute of Energy Research)
Rhee, Youngwoo (Graduate School of Energy Science and Technology, Chungnam National University)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.25, no.4, 2014 , pp. 355-363 More about this Journal
Abstract
Thermal shock or overheating of WGS catalyst for SEWGS system during hydrogen pre-treatment can cause reactivity decay of the catalyst. To select appropriate pre-treatment condition, temperature profiles of catalyst bed (or outside fluidized particle bed of bed insert) during pre-treatment were measured and then CO conversions of those catalysts during WGS reaction were also measured and compared. Drastic overheating of catalyst took place when we reduce catalyst at fixed bed condition and these catalysts showed low CO conversion during WGS reaction. On the contrary, there was no overheating of catalyst at fluidized bed condition not only physical mixing case but also bed insert case. Spring type bed insert showed acceptable CO conversion even at low WGS content. Consequently, feasibility of high CO conversion without decay of reactivity of catalyst and holding the WGS catalyst inside the SEWGS reactor as tablet shape were confirmed using spring type bed insert.
Keywords
SEWGS; WGS; Catalyst; CO conversion; Bed insert; Thermal shock;
Citations & Related Records
Times Cited By KSCI : 7  (Citation Analysis)
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