Mass transfer study of hydrogen sulfide removal from reformats with microfiber entrapped zno/SiO₂ sorbents for fuel cell application

A mass transfer study of H₂S removal from reformats with microfiber entrapped ZnO/SiO₂ sorbent was conducted for fuel cell applications. The microfibers enhanced the external mass transfer, thus improved the sorbents performance in the low concentration H₂S removal. ZnO nanosized particulates supported by SiO₂ could minimized the intraparticle mass transfer resistance. The regenerated sorbents had steady capacities, which were ∼ 75% of the capacity of fresh ones. From the mass transfer study of glass fiber entrapped ZnO/SiO₂ sorbents, the combination of these microfiber media nano-dispersed ZnO on SiO₂ had offered a nice solution to the low concentration H₂S removal in onsite fuel processor. This is an abstract of a paper presented in the ACS Fuel Chemistry Meeting Fall 2005 (Washington, DC Fall 2005).