An evaluation of CO2 and H2 selective polymeric membranes for CO2 separation in IGCC processes

Parametric analysis and potential prediction of membrane processes for hydrogen production and pre-combustion CO 2 capture

“…This result validates that with low product purity HSM system is more suitable for high hydrogen recovery than the CSM system. This result also agrees well with a previous work (Franz and Scherer, 2010). Thus, the HSM provides more advantages for product recovery, regardless of its purity, and CSM could be used for the recovery of a high purity product (99.999%), even with low recovery.…”

“…This is the primary process utilized in the typical integrated gasification combined cycle (IGCC) power plant for power generation. The syngas pressure is 3.0-5.0 MPa after the treatment of the water-gas shift (Franz and Scherer, 2010). Although a few other gases are present, their transport property in the membrane is similar to either H 2 or CO 2 , causing them to be attributed to one of the main components.…”

A survey on current advanced IGCC power plant technologies, sensors and control systems

“…Although they have lower H 2 selectivity, polymeric membranes are suited for the IGCC process since they do not require high purity H 2 concentration [92]. A few studies have shown that hydrogen selective membranes can reduce the cost of CO 2 capture compared to the Selexol process as membranes with CO 2 /H 2 selectivity of at least 60% and H 2 /CO 2 selectivity of at least 50% can be used to achieve a CO 2 removal of approximately 90% [93,94]. Merkel et al combined a membrane process with cryogenic condensation and fractionation process for CO 2 capture and showed that this process configuration produced better results than the implementation of each process independently [95].…”

Assessment of carbon capture thermodynamic limitation on coal-fired power plant efficiency

“…This process needs a pressure difference through the membrane as a driving force (Franz and Scherer, 2010). The energy consumption of this process has two terms: the pressure itself (the hydrogen need to be compressed back to the turbine inlet pressure) and the chemical energy loss due to the fraction of entrained H 2 .…”