Reactive Water Sorbents for the Sorption-Enhanced Reverse Water–Gas Shift

Abstract

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Intensification of the reverse water–gas shift process using a countercurrent chemical looping regenerative reactor

“…The equilibrium of the RWGS reaction can be shifted to greater CO 2 conversion by in-situ removal of the product H 2 O [4], using sorbents [5,6], or H 2 O permeable membranes [7,8]. However, these concepts add significant complexity and design constraints to the process, with sorbents having temperature limitations and requiring cyclic regeneration, while membrane reactors require large surface areas and sweep gas to remove the H 2 O.…”

Development of High Temperature Water Sorbents Based on Zeolites, Dolomite, Lanthanum Oxide and Coke

“…More recently, some other authors have published similar works combining different catalysts and adsorbents. Gómez et al [ 21 ] studied the use of zeolite 5A as adsorbent, Coppola et al [ 22 ] employed zeolite 3A and granular CaO, which reacts with water to form Ca(OH) 2 , and Pieterse et al [ 23 ] tested the performance of zeolites 4A and 13X. In all the cases, the saturation was achieved after just a few minutes (5–8 min).…”