摘要:
A fixed bed hydroprocessing system, and also a method for upgrading a pre-existing fixed bed hydroprocessing system, involves preliminarily upgrading a heavy oil feedstock in one or more slurry phase reactors using a colloidal or molecular catalyst and then further hydroprocessing the upgraded feedstock within one or more fixed bed reactors using a porous supported catalyst. The colloidal or molecular catalyst is formed by intimately mixing a catalyst precursor composition into a heavy oil feedstock and raising the temperature of the feedstock to above the decomposition temperature of the precursor composition to form the colloidal or molecular catalyst in situ. Asphaltene or other hydrocarbon molecules otherwise too large to diffuse into the pores of the fixed bed catalyst can be upgraded by the colloidal or molecular catalyst. One or more slurry phase reactors may be built and positioned upstream from one or more fixed bed reactors of a pre-existing fixed bed system and/or converted from one or more pre-existing fixed bed reactors.
摘要:
The invention relates to a catalyst comprising an active component based on molybdenum and on potassium and a support based on hydroxyapatite, and also to a process for preparing said catalyst and a process for producing methyl mercaptan in a catalytic process by reaction of carbon monoxide, sulphur and/or hydrogen sulphide and hydrogen, comprising the use of said catalyst.
摘要:
The invention concerns a process for upgrading lower quality carbonaceous feedstock using a slurry catalyst composition. The use of particular organometallic compounds as precursors for the dispersed active catalyst allows for reduced coke formation.
摘要:
The present invention provides a hydrodesulfurization catalyst exhibiting a high desulfurization activity when used for hydrotreating a hydrocarbon oil, particularly straight-run gas oil. The hydrodesulfurization catalyst is a catalyst produced by pre-sulfurizing a hydrodesulfurization catalyst Y comprising a support containing silica, alumina and titania and at least one type of metal component supported thereon and selected from VIA and VIII groups of the periodic table (comprising at least Mo), in which the total area of the diffraction peak area indicating the crystal structure of anatase titania (101) planes and the diffraction peak area indicating the crystal structure of rutile titania (110) planes in the support, measured by X-ray diffraction analysis being 1/4 or less of the alumina diffraction peak area assigned to γ-alumina (400) planes, the molybdenum is formed into molybdenum disulfide crystal and disposed in layers on the support by the pre-sulfurization, and the molybdenum disulfide crystal layers having an average length of longer than 3.5 nm and 7 nm or shorter in the plane direction and an average number of laminated layers of more than 1.0 and 1.9 or fewer.
摘要:
A process for treating a hydrocarbon-containing feed is provided in which a hydrocarbon-containing feed comprising at least 20 wt.% of heavy hydrocarbons is mixed with hydrogen, hydrogen sulfide, and a catalyst to produce a hydrocarbon-containing product, where hydrogen sulfide is provided at a mole ratio relative to hydrogen of at least 0.5:9.5. The catalyst is comprised of a material comprised of a first metal and a second metal, where the first metal is selected from the group consisting of Cu, Fe, Ni, Co, Bi, Ag, Mn, Zn, Sn, Ru, La, Ce, Pr, Sm, Eu, Yb, Lu, Dy, Pb, and Sb and the second metal is Mo, W, V, Sn, and Sb. The material of the catalyst may have a structure according to formula (I), formula (II), formula (III), or formula (IV): where M is either the first metal or the second metal, and at least one M is the first metal and at least one M is the second metal; where M is either the first metal or the second metal, and at least one M is the first metal and at least one M is the second metal, and X is selected from the group consisting of SO 4 , PO 4 , oxalate (C 2 O 4 ), acetylacetonate, acetate, citrate, tartrate, Cl, Br, I, ClO 4 , and NO3; where M is either the first metal or the second metal, and at least one M is the first metal and at least one M is the second metal, and X is selected from the group consisting of SO 4 , PO 4 , oxalate (C2O 4 ), acetylacetonate, acetate, citrate, tartrate, Cl, Br, I, ClO 4 , and NO 3 ; where M is either the first metal or the second metal, and at least one M is the first metal and at least one M is the second metal, and X is selected from the group consisting of SO 4 , PO 4 , oxalate (C2O 4 ), acetylacetonate, acetate, citrate, tartrate, Cl, Br, I, ClO 4 , and NO 3 .
摘要:
The invention is relative to a catalyst, in particular to a noble metal sulphide electrocatalyst, obtained by reacting the precursor of at least one noble metal with a thionic species in an aqueous environment essentially free of sulphide ions, and to a method for producing the same.
摘要:
Methods and systems for mixing a catalyst precursor with a heavy oil feedstock preparatory to hydroprocessing the heavy oil feedstock in a reactor to form an upgraded feedstock. Achieving thorough dispersion of the catalyst precursor facilitates and maximizes the advantages of the colloidal or molecular hydroprocessing catalyst. A catalyst precursor and a heavy oil feedstock having a viscosity greater than the viscosity of the catalyst precursor are provided. The catalyst precursor is pre-mixed with a hydrocarbon oil diluent, forming a diluted catalyst precursor. The diluted precursor is then mixed with a first portion of the heavy oil feedstock to form a blended oil feedstock composition. Finally, the blended oil feedstock composition is mixed with a second remaining portion of the heavy oil feedstock, resulting in the catalyst precursor being homogeneously dispersed on a colloidal and/or molecular level within the heavy oil feedstock.