SHIFT-REAKTOR MIT WÄRMETAUSCHER

摘要

Shift conversion of hydrogen-rich reformed gas produced by reaction including partial oxidation of feed gas in a reforming reaction section (6) is made by its water gas shift reaction with shift conversion catalyst in a shift reaction section (10) in order to reduce CO contained in the reformed gas and enhance the yield of hydrogen. In this case, for the purpose of enabling high-temperature reformed gas from the reforming reaction section (6) to undergo the shift conversion as it is and thereby simplifying the construction of a shift conversion unit, the reformed gas from the reforming reaction section (6) is introduced directly into a reformed gas passage (11) of the shift reaction section (10) and thereby undergoes the shift reaction while heat-exchanging with the feed gas. As a result, shift conversion of the reformed gas having exited from the reforming reaction section (6) is implemented over a wide temperature range from high temperature conditions where the reaction rate is high to low temperature conditions where the reaction rate is low but the gas reacts advantageously at equilibrium, thereby extending the temperature range of shift conversion. In addition, the need to control the temperature of the reformed gas is eliminated thereby simplifying the construction of the shift conversion unit.