Sorption enhanced dimethyl ether synthesis for high efficiency carbon conversion: Modelling and cycle design

Experimental validation of pressure swing regeneration for faster cycling in sorption enhanced dimethyl ether synthesis

“…This is a major improvement compared to the previously reported TPSA cycle and close to direct DME pilot plant productivity for CO to DME, which would strongly deteriorate for CO 2 -rich feed. 13 This increase in productivity shows the impact of the demonstrated PSA regeneration on the SEDMES process performance. Benefiting from this work, optimisation of the cycle design by means of modelling and experimental validation should further unlock the potential of SEDMES as an efficient carbon utilisation technology.…”

“…9,10 Sorption enhanced DME synthesis (SEDMES), which combines direct DME synthesis with in situ water removal using a solid adsorbent, is a promising process intensification for the direct production of DME from CO 2 . 7,[11][12][13] While enabling increased single-pass conversion and selectivity, experimental studies have indicated that time and energy intensive temperature swing regeneration would be required for adsorbent regeneration. 7,13 A potentially faster and more energy efficient approach is pressure swing regeneration as recently indicated in a SEDMES modelling study.…”

“…7,[11][12][13] While enabling increased single-pass conversion and selectivity, experimental studies have indicated that time and energy intensive temperature swing regeneration would be required for adsorbent regeneration. 7,13 A potentially faster and more energy efficient approach is pressure swing regeneration as recently indicated in a SEDMES modelling study. 13 The current communication reports the results of an experimental investigation on the bench-scale sorption enhanced production of DME.…”

“…7,13 A potentially faster and more energy efficient approach is pressure swing regeneration as recently indicated in a SEDMES modelling study. 13 The current communication reports the results of an experimental investigation on the bench-scale sorption enhanced production of DME. Special attention is being paid to the mode of regeneration, as the key to an economically attractive process.…”

Sorption enhanced dimethyl ether synthesis under industrially relevant conditions: experimental validation of pressure swing regeneration

“…[23][24][25] It is based on the in situ removal of water by a solid adsorbent, typically a LTA zeolite. 8,26 The in situ removal of H 2 O assures that the oxygen surplus of the feed no longer ends up as CO 2 , as is the case for direct DME synthesis. As a result, CO 2 can be used directly as feed, rather than being the main by-product of DME synthesis.…”