In an embodiment, a method of hydrogenating a highly unsaturated
hydrocarbon to an unsaturated hydrocarbon includes contacting the highly
unsaturated hydrocarbon with a catalyst in the presence of hydrogen. The
catalyst comprises palladium and an inorganic support having a surface
area of from about 4.5 to about 20 m.sup.2/g, or alternatively 5 to 14.5
m.sup.2/g. The inorganic support may comprise .alpha.-alumina treated
with a fluoride source. The palladium may be primarily disposed near the
surface of the support. In addition, the catalyst may comprise silver
distributed throughout the support. In another embodiment, a method of
making the foregoing selective hydrogenation catalyst includes contacting
a fluorine-containing compound with an inorganic support, heating the
support, and adding palladium to the inorganic support. After adding
palladium to the support, the support can then be heated again, followed
by adding silver to and then heating the support once again.