Investigation of the effect of total pressure on performance of the catalytic water–gas shift reaction using simulated coal-derived syngases

• Published in: Catalysis communications Vol. 11; no. 4; pp. 272 - 275
• Main Authors: Hla, San Shwe, Duffy, G.J., Morpeth, L.D., Cousins, A., Roberts, D.G., Edwards, J.H.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 15-12-2009
• Subjects: Effect of pressure; Fe–Cr oxide catalyst; Kinetics; Sour-shift catalyst; Water–gas shift reaction; Fe–Cr oxide catalyst; Sour-shift catalyst; Kinetics; Water–gas shift reaction; Effect of pressure
• ISSN: 1566-7367; 1873-3905
• DOI: 10.1016/j.catcom.2009.10.013

The effect of operating pressure on the water–gas shift (WGS) reaction rate over an iron-based high-temperature catalyst, and a Co–Mo based sour-shift catalyst, was investigated using simulated coal-derived syngas at 450
°C. For both catalysts, it was found that the CO conversion rate depends linearly upon total operating pressure. The apparent reaction orders used in a power-law rate expression, where the reaction orders were derived from experimental results at atmospheric pressure, are valid at elevated pressures up to at least 11
bar.