HYDROGENOLYSIS PROCESSES AND HYDROGENOLYSIS CATALYST PREPARATION METHODS

摘要

Hyd rogenolysis processes are p rovided that can include providing a hyd rogenolysis reactor havin g a catalyst therein. Th e catalyst can be exposed to a reducing agent in the absence of polyhyd ric alcohol co mpou nd wh ile maintain in g a temperature of the catalyst above 290°C. Hydrogenolysis processes can also include providing a passivated catalyst to within a reactor and exposin g th e catalyst to a reducing atmosphere wh ile mai ntain ing the catalyst at a temperatu re less than 210°C. Hyd rogenolysis catalyst preparation methods are p rovided that can incl ude exposin g the catalyst to a f i rst red ucing atmosphere wh ile maintai ning the catalyst at a f i rst temperatu re to reduce at least a portion of the catalyst. Th e method can also incl ude passivati ng at least the portion of the catalyst and depassivatin g the po rtion of the catalyst in the presence of a second reducing atmosphere while maintaining the portion of the catalyst at a second temperatu re less than the f i rst temperatu re.