This technology is a membrane for hydrogen recovery from streams containing hydrogen sulfide. The membrane comprises a substrate, a hydrogen permeable first membrane layer deposited on the substrate, and a second membrane layer deposited on the first layer. The second layer contains sulfides to transition metals and positioned on a feed side of the hydrogen sulfide stream. This technology also includes a method for the direct decomposition of hydrogen sulfide to hydrogen and sulfur.
This technology is meant to be a viable alternative to the Claus process for H2S treatment where complete H2S conversion can be obtained without the need for expensive tail gas clean up steps.
The Membranes for Hydrogen Recovery have the following advantages: they are simple to synthesize using chemical vapor deposition, electrolytic plating and other chemical synthesis routes; they are effective for permeation and removal of hydrogen from reaction zones wherein H2S from process streams undergoes decomposition; and they are effective for permeation and removal of hydrogen from reaction zones, involving synthesis or treatment of hydrocarbon and other process streams, wherein the fluid stream contains H2S.