Sulfur removal from ZrO2/SO42− during n-butane isomerization Original Research Article

We wish to report that significant quantities of hydrogen sulfide are identified during the isomerization of n-butane at 250°C using ZrO2/SO42−. This result indicates catalyst deactivation is at least partly due to the reduction of the oxidation state of sulfur and removal of sulfur from the catalyst as hydrogen sulfide. The reduction and removal of sulfur is apparently closely related to the n-butane isomerization process.