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http://dx.doi.org/10.7844/kirr.2021.30.6.12

A Study on the Water Gas Shift Reaction of RPF Syngas  

Roh, Seon Ah (Environmental Systems Research Division, Korea Institute of Machinery & Materials)
Publication Information
Resources Recycling / v.30, no.6, 2021 , pp. 12-18 More about this Journal
Abstract
The water-gas shift reaction is the subsequent step using steam for hydrogen enrichment and H2/CO ratio-controlled syngas from gasification. In this study, a water-gas shift reaction was performed using syngas from an RPF gasification system. The water-gas shift using a catalyst was performed in a laboratory-scale tube reactor with a high temperature shift (HTS) and a low temperature shift (LTS). The effects of the reaction temperature, steam/carbon ratio, and flow rate on H2 production and CO conversion were investigated. The operating temperature was 250-400℃ for the HTS system and 190-220℃ for the LTS system. Steam/carbon ratios were between 1.5 and 3.5, and the composition of reactant was CO : 40 vol%, H2 : 25 vol%, and CO2 : 25 vol%. The CO conversion and H2 production increased as the reaction temperature and steam/carbon ratio increased. The CO conversion and H2 production decreased as the flow rate increased due to reduced retention time in the catalyst bed.
Keywords
Syngas; Water gas shift; gasification; Hydrogen; CO conversion;
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