초록 ▼

Hydrocarbon cuts of high olefin content are desulfurized, without substantial loss in octane number, by reaction with hydrogen in the presence of a catalyst comprising (a) a specified non-acidic carried and (b) cobalt and at least one of tungsten and molybdenum, the atomic ratio [Figure] being highe

Hydrocarbon cuts of high olefin content are desulfurized, without substantial loss in octane number, by reaction with hydrogen in the presence of a catalyst comprising (a) a specified non-acidic carried and (b) cobalt and at least one of tungsten and molybdenum, the atomic ratio [Figure] being higher than 0.55.

대표청구항 ▼

A process for the catalytic hydrodesulfurization of a catalytic cracking effluent boiling at least in major part in the gasoline range and containing 15 to 45% by weight of olefins, without substantial decrease in the octane number of said effluent, and without decreasing the bromine number of said

A process for the catalytic hydrodesulfurization of a catalytic cracking effluent boiling at least in major part in the gasoline range and containing 15 to 45% by weight of olefins, without substantial decrease in the octane number of said effluent, and without decreasing the bromine number of said effluent by more than 10%, said process comprising contacting said effluent, in the presence of hydrogen, at a temperature between about 260°and 310°C., with a catalyst comprising (a) a non-acidic carrier, and (b) cobalt and at least one of tungsten and molybdenum; wherein the total weight of cobalt, tungsten and molybdenum in said catalyst, expressed as oxides, is from 2 to 30% of the total catalyst weight; and wherein the atomic ratio [Figure] is higher than 0.55; and recovering an effluent having a lower sulfur content, substantially the same octane number and at most a 10% reduction in bromine number.