A process and apparatus for obtaining a hydrogen product and a sulfur
product from a feed gas comprised of hydrogen sulfide. In the process, a
first separating step separates the feed gas to obtain a first purified
hydrogen sulfide fraction comprised of at least about 90 percent hydrogen
sulfide by volume. A dissociating step dissociates hydrogen sulfide
present in the first purified hydrogen sulfide fraction to convert it
into a dissociated first purified hydrogen sulfide fraction comprised of
elemental hydrogen and sulfur. A second separating step separates the
dissociated first purified hydrogen sulfide fraction to obtain a hydrogen
rich fraction comprised of elemental hydrogen. The sulfur product may
also be obtained from the dissociated first purified hydrogen sulfide
fraction. Finally, the hydrogen product is obtained from the hydrogen
rich fraction. The apparatus is provided for performing the process.