PROCESS AND APPARATUS FOR CONVERTING HYDROGEN SULFIDE INTO HYDROGEN AND SULFUR

摘要

A process and apparatus for obtaining a hydrogen product and a sulfur productfrom a feed gas. The feed gas includes hydrogen sulfide, the hydrogen productincludes elemental hydrogen and the sulfur product includes elemental sulfur.In the process, a first separating step separates the feed gas to obtain afirst purified hydrogen sulfide fraction comprised of at least about 90percent hydrogen sulfide by volume. A dissociating step dissociates hydrogensulfide present in the first purified hydrogen sulfide fraction to convert itinto a dissociated first purified hydrogen sulfide fraction includingelemental hydrogen and sulfur. A second separating step separates thedissociated first purified hydrogen sulfide fraction to obtain a hydrogen richfraction including elemental hydrogen. The sulfur product may also be obtainedfrom the dissociated first purified hydrogen sulfide fraction. Finally, thehydrogen product is obtained from the hydrogen rich fraction. The apparatusperforms the process.