초록 ▼

In processes for the catalytic treatment of hydrocarbon feedstream containing organic sulfur comprising contacting said feedstream with a catalyst for a time at a temperature and pressure sufficient to effect the desired catalytic change on the feedstream, the improvement comprising using as the cat

In processes for the catalytic treatment of hydrocarbon feedstream containing organic sulfur comprising contacting said feedstream with a catalyst for a time at a temperature and pressure sufficient to effect the desired catalytic change on the feedstream, the improvement comprising using as the catalyst a layered composition of the formula MXy wherein M is a transition metal selected from the group consisting of Group IVb, Vb, VIb, VIIb and uranium, X is a chalcogen selected from the group consisting of sulfur, selenium, tellurium, and mixtures thereof, y is a number ranging from about 1.5 to about 3. The catalyst is prepared by reacting neat or in the presence of a nonaqueous solvent a Group IVb to VIIb or uranium metal salt, and a source of sulfide, selenide or telluride ions, and mixing the reactants at temperatures below 400°C. and at atmospheric pressures. The catalyst may be isolated by filtration and washing with excess solvent (when one is used) or by vacuum pumping any volatile coproduced anion salt. Preferably the chalcogenide is sulfur and y is about 1.5 to about 2. The catalytic processes which are benefited by the use therein of the above-described compositions are hydrodesulfurization, hydrodenitrogenation, hydroconversion and hydrogenation run in the presence of hydrogen or a hydrogen donor solvent.

대표청구항 ▼

In a process for the hydrodesulfurization of hydrocarbon feed streams wherein said hydrocarbon feedstreams are contacted with a catalyst at a temperature and pressure and in the presence of hydrogen or a hydrogen donor solvent and under conditions sufficient to effect the hydrodesulfurization of the

In a process for the hydrodesulfurization of hydrocarbon feed streams wherein said hydrocarbon feedstreams are contacted with a catalyst at a temperature and pressure and in the presence of hydrogen or a hydrogen donor solvent and under conditions sufficient to effect the hydrodesulfurization of the hydrocarbon feedstream, the improvement comprising using as the catalyst a layered material of the formula MXy wherein M is a transition metal selected from the groups consisting of Group IVb, Vb, VIb, VIIb metals, X is a chalcogen selected from the group consisting of sulfur, selenium, tellurium and mixtures thereof and y is a number ranging from about 1.5 to about 3 which material is prepared by reacting neat a Group IVb to VIIb metal salt, with a source of sulfide, selenide, or telluride ions, said source being selected from the group consisting of Li2X, Na2X, K2X, NaHX, LiHX, KHX, (NH4)HX, (NH4)2X, (RNH3)2X, (RR′NH2)2X, (RR′R″NH)2X wherein R, R′and R″are the same or different C1-C 20 alkyl group and C6-C20 aryl group, and X is the chalcogen selected from the group consisting of sulfur, selenium, tellurium and mixtures thereof, said reaction being conducted at a temperature of from -78 °to 400°C. for a time sufficient for reaction to occur.