Performance of a Pd/PSS membrane reactor to produce high purity hydrogen via WGS reaction

Pure Hydrogen Production in Membrane Reactor with Mixed Reforming Reaction by Utilizing Waste Gas: A Case Study

“…Moreover, due to Le Chatelier's principle, the reaction can be shifted towards the reaction products, with a consequent enhancement of the conversion and with the further benefit of collecting high grade hydrogen in the permeate side of the MR. Therefore, dense self-supported Pd-based MRs seem to be more adequate over other technologies to generate PEMFC-grade hydrogen due to the full hydrogen perm-selectivity of the membrane, while, depending on the finite value of the hydrogen perm-selectivity of the composite membrane, the purified hydrogen can be supplied to other kinds of fuel cells or to high temperature PEMFCs, whose CO content can be up to 20,000 ppm [67,[69][70][71][72][73][74][75].…”

Water gas shift membrane reactors

“…Thus, the majority of the scientific investigations on the WGS reaction in MRs is related to low-temperature (<623 K) operation, although, in recent years, different studies have dealt with high-temperature operation (!673 K) (Augustine et al, 2011;Battersby et al, 2008;Battersby et al, 2009;Bi et al, 2009;Brunetti et al, 2007;Chein, Chen, & Chung, 2013;Giessler, Jordan, Diniz da Costa, & Lu, 2003;Liguori et al, 2012;Tang et al, 2010). In hydrogen-selective MRs, the removal of hydrogen through the membrane takes place simultaneously as the reaction proceeds.…”

“…either using dense Pd-based(Augustine, Ma, & Kazantzis, 2011;Basile et al, 2010;Bi, Xu, Li, & Goldbach, 2009;Cornaglia et al, 2013;Hwang et al, 2013), composite Pd-based(Augustine, Mardilovich, Kazantzis, & Ma, 2012;Calles, Alique, & Furones, 2014;Liguori et al, 2012;Pinacci, Broglia, Valli, Capannelli, & Comite, 2010), or silica and zeolite membranes(Battersby, Duke, Liu, Rudolph, & Diniz da Costa, 2008, Battersby et al, 2009Harale, Hwang, Liu, Sahimi, & Tsotsis, 2007;Huang, El-Azzami, & Ho, 2005;Tang, Kim, Reddy, Dong, & Smirniotis, 2010;Zhang, Wu, Hong, Gu, & Xu, 2012).…”

Membrane reactors for hydrogen production from coal

“…Figure 5.4 shows that depending on the membrane operation temperature, different membranes have different applications for H 2 production in coal gasification process (Kaldis, Skodras, & Sakellaropoulos, 2004;Li & Fan, 2008;Smart et al, 2010). The membrane used in this process usually tolerates operation temperatures in the range of 280e600 C. Typical membranes used in this process for H 2 production in coal gasification include microporous zeolite membranes (Wang, Dong, & Lin, 2014; silica membranes (Brunetti, Barbieri, Drioli, Granato, & Lee, 2007Giessler, Jordan, Costa, & Lu, 2003), carbon molecular membranes, and Pd-based membranes (Augustine, Mardilovich, Kazantzis, & Ma, 2012;Koc, Kazantzis, & Ma, 2011;Liguoria et al, 2012). Syngas produced from a coal gasifier is initially removed with particulates and sulfur, and then fed to a membrane reactor for WGS reaction to produce H 2 and CO 2 .…”