Abstract:
An improved method of operating a conventional ebullated bed process for the hydroconversion of heavy hydrocarbon feedstocks so as to provide for low or reduced sediment content in the conversion product without the loss of hydrodesulfurization function.
Abstract:
A catalyst composition that is especially useful in the hydroconversion of pitch, micro carbon residue and sulfur contents of a heavy hydrocarbon feedstock without the excessive formation of sediment. The catalyst composition is a reasonably high surface area composition containing alumina and a low molybdenum content with a high ratio of nickel-to-molybdenum. The catalyst composition further has a unique pore distribution that in combination with the special metals loading provide for good conversion of pitch and micro carbon residue without an excessive yield of sediment.
Abstract:
Prior to reaction in an isomerization unit, the feed may be purified by contact with a composition comprising an alumina based catalyst including Group I or Group II cations or combinations thereof in a range from about 0 wt % to about 20 wt % Group I or Group II cations. In some embodiments, the alumina based catalyst has one or more of the following properties; pore volume in pores of less than 70 Å pore diameter of less than about 15% of Total Pore Volume: a pore volume in pores of greater than 350 Å pore diameter of less than 10% of Total Pore Volume; a median pore diameter by volume of less than 120 Å; a water pore volume of less than 1.10 cc/g;: and a surface area of greater than 160 m2/g.
Abstract:
An improved process for the hydroconversion of micro carbon residue content of heavy hydrocarbon feedstocks by the use of a catalyst composition that is especially useful in the conversion of micro carbon residue of such feedstocks. The catalyst composition is a low surface area composition that further has a specifically define pore structure the combination of which provides for its enhance micro carbon residue conversion property.
Abstract:
A process for converting a biomass material comprising a) pyrolyzing a biomass material to produce a biomass-derived pyrolysis product; b) mixing at least part of the biomass-derived pyrolysis product and a petroleum-derived hydrocarbon composition, which petroleum derived hydrocarbon composition has a C7-asphaltenes content of equal to or more than 0.2 wt %, based on the total weight of the petroleum-derived hydrocarbon composition, to produce a hydrocarbon-containing mixture; c) dewatering the hydrocarbon-containing mixture to produce a dewatered hydrocarbon-containing mixture; d) contacting the dewatered hydrocarbon-containing mixture with hydrogen in one or more ebullating bed reactors comprising a catalyst at a temperature in the range from 350 to 500° C. to produce a reaction product.
Abstract:
An ebullated bed process for the hydroconversion of heavy hydrocarbon feedstocks that provides for high conversion of the heavy hydrocarbon with a low sediment yield. The process uses for its catalyst bed an impregnated shaped ebullated bed catalyst having a low macroporosity and a geometry such that its characteristic cross section perimeter-to-cross sectional area is within a specifically defined range.
Abstract:
An ebullated bed process for the hydroconversion of heavy hydrocarbon feedstocks that provides for high conversion of the heavy hydrocarbon with a low sediment yield. The process uses for its catalyst bed small particles of a specifically defined shaped hydroprocessing catalyst which is contacted with the heavy hydrocarbon feedstock under hydroconversion conditions and yields a hydrocarbon conversion having a relatively low sediment content.
Abstract:
A catalyst that is useful for the removal of arsenic from hydrocarbon feedstocks. The catalyst comprises an alumina support, underbedded molybdenum and phosphorus components, and an overlayer of a nickel component. The catalyst further has the unique property of having a surface nickel-to-molybdenum atomic ratio of greater than 1.8 with a bulk nickel-to-molybdenum atomic ratio of less than 2.2. The nickel accessibility factor of the catalyst is greater than 1.2. The catalyst is prepared by the application of two metals impregnation steps with associated calcination steps that in combination provide for the underbedded metals and overlayer of nickel.
Abstract:
A process for converting a solid biomass material comprising: a) providing a solid biomass material; b) contacting a feed comprising the solid biomass material and a petroleum-derived hydrocarbon composition, which petroleum derived hydrocarbon composition has a C7-asphaltenes content of equal to or more than 1.0 wt %, based on the total weight of the petroleum-derived hydrocarbon composition, co-currently with a source of hydrogen in one or more ebullating bed reactors comprising a catalyst at a temperature in the range from 350° C. to 500° C. to produce a reaction product.
Abstract:
A catalyst composition that is especially useful in the hydroconversion of pitch, micro carbon residue and sulfur contents of a heavy hydrocarbon feedstock without the excessive formation of sediment. The catalyst composition is a reasonably high surface area composition containing alumina and a low molybdenum content with a high ratio of nickel-to-molybdenum. The catalyst composition further has a unique pore distribution that in combination with the special metals loading provide for good conversion of pitch and micro carbon residue without an excessive yield of sediment.