1159843-A is referenced by 4 patents.
1,159,843. Hydrogenating hydrocarbons. ESSO RESEARCH & ENG. CO. 26 May, 1967, No. 24593/67. Heading C5E. In a process for producing a heavy aromatic solvent a hydrocarbon oil is steam cracked and an aromatic tar is produced, said tar having a boiling point above 500 F., the said tar is heat soaked, and flashed and a 350 to 550 F. boiling point fraction is recovered and this fraction is then catalytically hydro-treated. The feedstock may be a gas oil or a mixed gas oil-naphtha. In an alternative embodiment the steps of heat soaking and flashing may be replaced by the step of destructive distillation. The hydro-fining catalyst may comprise cobalt oxide and molybdenum oxide, or cobalt molybdate absorbed on alumina, oxide, silica gel, clay, or hydrogen fluoride promoted alumina. The hydro-fined distillate may be re-destilled and washed with sodium hydroxide solution.