摘要:
Hydroconversion processing of petroleum and chemical feedstocks using bulk Group VIII/Group VIB catalysts. Preferred catalysts include those comprised of Ni-Mo-W.
摘要:
A two stage hydrodesulfurizing process for producing low sulfur distillates. A distillate boiling range feedstock containing in excess of about 3,000 wppm sulfur is hydrodesulfurized in a first hydrdesulfurzing stage containing one or more reaction ones in the presence of hydrogen and a hydrodesulfurizing catalyst. The liquid product stream thereof is passed to a first separation stage wherein a vapor phase product stream and a liquid product stream are produced. The liquid product stream, which has a substantially lower sulfur and nitrogen content than the original feedstream is passed to a second hydrodesulfurizing stage also containing one or more reaction zones where it is reacted in the presence of hydrogen and a second hydrodesulfurizing catalyst at hydrodesulfurizing conditions. The catalyst in any one or more reaction zones is a bulk multimetallic catalyst comprised of at least one Group VIII non-noble metal and at least two Group VIB metals.
摘要:
Hydroprocessing of petroleum and chemical feedstocks using bulk Group VIII/Group VIB catalysts. Preferred catalysts include those comprised of Ni-Mo-W.
摘要:
A slurry hydroprocessing process for upgrading a hydrocarbon feedstock containing nitrogen and sulfur using bulk multimetallic catalyst comprised of at least one Group VIII non-noble metal and at least two Group VIB metals wherein the ratio of Group VIB metal to Group VIII metal is about 10:1 to about 1:10.
摘要:
A method for isomerization of a hydrocarbon which comprises providing a solid acid catalyst comprising a carrier containing a part comprising zirconia and/or hydrated zirconia and sulfuric acid carried thereon, and contacting the catalyst with a hydrocarbon material having a water content of 5 ppm by weight or less, preferably 1 ppm or less, to thereby produce isomerized hydrocarbons; and a system for practicing the method. The isomerization method does not need the introduction of a chlorine-containing compound during the course of isomerization and uses a catalyst having high activity. The isomerization system comprises a dehydrating apparatus for the material, a vessel for catalytic reaction filled with the above catalyst, a separator for separating a reaction product into the hydrogen to be recycled and a hydrocarbon product, and a compressor which compresses the recycle hydrogen to feed it to the vessel for catalytic reaction.
摘要:
The invention pertains to a process for reducing the sulphur content of a hydrocarbon feedstock to a value of less than 200 ppm, preferably less than 50 ppm, which comprises subjecting a catalyst comprising a Group VIB metal component, a Group VIII metal component, and an organic additive on a carrier to a sulphidation step, and contacting a feedstock with a 95% boiling point of 450°C or less and a sulphur content of 500 ppm or less with the sulphided catalyst under conditions of elevated temperature and pressure to form a product with a sulphur content of less than 200 ppm. The organic additive preferably is at least one compound selected from the group of compounds comprising at least two hydroxyl groups and 2-10 carbon atoms, and the (poly)ethers of these compounds.
摘要:
A method of hydrodesulfurizing a catalytic cracked gasoline which comprises providing a presulfided catalyst modified with a basic organic nitrogen compound and contacting the catalytic cracked gasoline with the catalyst.
摘要:
L'invention concerne un procédé en une ou deux étapes d'incorporation de soufre dans la porosité d'un catalyseur de conversion d'hydrocarbures. Le procédé selon l'invention est effectué hors site dans au moins une zone contenant un catalyseur de préférence en mouvement et est conduit soit en présence d'hydrogène sulfuré, soit en présence de soufre ou d'un composé du soufre capable de donner naissance à de l'hydrogène sulfuré naissant. La présente invention concerne un procédé de présulfuration de catalyseur de traitement d'hydrocarbures et/ou de préconditionnement d'un catalyseur.