| CPC B01J 23/883 (2013.01) [B01J 21/04 (2013.01); B01J 23/755 (2013.01); B01J 23/882 (2013.01); B01J 35/394 (2024.01); B01J 37/14 (2013.01); B01J 37/18 (2013.01); B01J 37/20 (2013.01); C07C 5/11 (2013.01); C07C 5/2735 (2013.01); C07C 5/2754 (2013.01); C07C 6/06 (2013.01); C07C 2521/04 (2013.01); C07C 2523/755 (2013.01); C07C 2523/882 (2013.01); C07C 2523/883 (2013.01)] | 20 Claims |
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1. A method for removing unsaturated hydrocarbons from aromatic hydrocarbons, which comprises the steps of:
providing an aromatic hydrocarbon-containing feedstock having a bromine index of at least 30; and
forming an aromatic hydrocarbon-containing product having a decreased bromine index compared to the feedstock by hydrogenating the aromatic hydrocarbon-containing feedstock in presence of a selective hydrogenation catalyst prepared using a method comprising the steps of:
a) providing a calcined catalyst containing nickel and molybdenum;
b) sulfiding the calcined catalyst containing nickel and molybdenum to give a sulfided catalyst containing nickel and molybdenum;
c) carrying out an oxidation treatment of the sulfided catalyst containing nickel and molybdenum at a temperature exceeding 250° C. to give an oxidized catalyst containing nickel and molybdenum; and
d) carrying out a reduction treatment of the oxidized catalyst containing nickel and molybdenum to give a reduced catalyst containing nickel and molybdenum.
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