The
dehydrogenation catalyst is a shell-typeAl2O3containing Pt-Pd
pair precious metal catalyst and added rare earth element as the
promoter. It has high dispersity and breaken strength, which ensure
that it has a higher dehydrogenation activity and higher anti-
sulfur, CO and methanol poisoning capabilities, good stability and
long lifetime. It is used for urea feed gas CO2dehydrogenation and prevent
explosion from mix of small amount of hydrogen and oxygen in
high-pressure scrubber or gas absorber.
