Abstract: A process for the catalytic hydrodesulfurization of hydrocarbon- containing feeds using a catalyst of a phosphorus component, a cobalt component and a Group VIB metal component on an alumina carrier.

Abstract: Disclosed are the preparation of a sulfided catalyst and the use of said catalyst in the hydrotreatment of hydrocarbon feeds. The sulfidation is carried out by ex situ presulfiding of a fresh or regenerated catalyst, followed by the resulting material being contacted in situ at elevated temperature with hydrogen gas in combination with either a sulfiding agent, e.g., hydrogen sulfide, or a spiked feed.

Abstract: Disclosed is a process for the ex situ presulfidation of hydrotreating catalysts employing organic sulfur compounds with a boiling point exceeding 100.degree. C. and satisfying the formulaX--R.sup.1 (S--R.sup.2).sub.p S--R.sup.3 --Y (I)wherein p=0, 1 or 2,R.sup.1, R.sup.2, and R.sup.3 may be the same or different and represent alkylene groups having 1-4 carbon atoms,X and Y may be the same or different and have the meaning of --H, --OH, --OR.sup.4 4 or --C(O)OR.sup.5, whereinR.sup.4 has the meaning of an alkyl group or acyl group with 1-3 carbon atoms, andR.sup.5 has the meaning of --H, an ammonium group or an alkyl group with 1-3 carbon atoms.Also disclosed is a process for activating the thus presulfided catalyst.

Abstract: This invention concerns a process for the preparation of a gasoline boiling hydrocarbon from a mixture of hydrocarbons specifically defined. The hydrocarbon feedstock is a mixture of two hydrocarbon oils with the first hydrocarbon oil having a Conradson carbon test value C.sub.1 and % w such that the quotient of C.sub.1 /R is higher than 0.8 and a second hydrocarbon oil having a Conradson carbon test number C.sub.2 such that the quotient C.sub.2 /R is lower than 0.2 wherein R is equal to the reactor carbon requirement for the particular catalytic cracking unit and is between 3 and 8 percent by weight.

Abstract: A process is disclosed for the preparation of a more active paraffin hydrocarbon hydroisomerization catalyst from synthetic mica montmorillonite, preferably a nickel synthetic mica montmorillonite catalyst, which may also contain palladium, by treating the catalyst with one or more compounds comprising chlorine which can further release one or more protons and/or hydrogen chloride, and preferably by treating with hydrochloric acid.

Abstract: A process for hydroisomerization of C.sub.4 -C.sub.7 paraffins with a nickel and/or cobalt synthetic mica-montmorillonite catalyst which has been pretreated with hydrogen at a temperature of at least 400.degree. C.