Abstract

5 hydrocarbons and oxygenated compounds (branched alcohols or alternatively blends of linear or branched alcohols and alkyl ethers) characterized in that it utilizes a catalytic distillation as second reaction step.

IPC Classes  ?

• C07C 1/20 - Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as hetero atoms

Abstract

A process is described for the separation of C5 hydrocarbons present, in a quantity ranging from 0.2 to 20 % by weight, in streams prevalently containing C4 products used for the production of high-octane hydrocarbon compounds, by the selective dimerization of isobutene, characterized in that the dimerization reaction is carried out in the presence of linear and branched alcohols and alkyl ethers in a quantity which is such as to have a molar ratio alcohols/alkyl ethers/isobutene in the feeding higher than 0.01.

IPC Classes  ?

• C07C 2/08 - Catalytic processes
• C10G 50/00 - Production of liquid hydrocarbon mixtures from lower carbon number hydrocarbons, e.g. by oligomerisation

Abstract

A process is described for the production of high-octane hydrocarbon compounds by means of the selective dimerization of isobutene, in the presence of C5 hydrocarbons and oxygenated compounds (branched alcohols or alternatively blends of linear or branched alcohols and alkyl ethers) characterized in that it utilizes a catalytic distillation as second reaction step.

IPC Classes  ?

• C07C 2/08 - Catalytic processes
• C10G 50/00 - Production of liquid hydrocarbon mixtures from lower carbon number hydrocarbons, e.g. by oligomerisation
• C10L 1/06 - Liquid carbonaceous fuels essentially based on blends of hydrocarbons for spark ignition

Abstract

A process for the conversion of heavy feedstocks using hydrotreatment, distillation or flash, and deasphalting that includes mixing a heavy feedstock with a hydrogenation catalyst and subjecting the thus-formed mixture to a hydrotreatment reactor for reaction with one or more of hydrogen and hydrogen sulfide to form a first product stream; subjecting the first product stream to a distillation or flash to form a plurality of distillate fractions; and recycling heavies from the distillation residue and/or tar by deasphalting in the presence of a solvent; where the hydrotreatment reaction product is pre-separated under high pressure to form light and heavy fractions and sending the heavy fraction to the distillation and/or flash.

IPC Classes  ?

• C10G 45/00 - Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds

Abstract

Process for the conversion of heavy feedstocks selected from heavy crude oils, distillation residues, heavy oils coming from catalytic treatment, thermal tars, oil sand bitumens, various kinds of coals and other high-boiling feedstocks of a hydrocarbon origin known as black oils, by the combined use of the following three process units: hydroconversion with catalysts in slurry phase (HT), distillation or flash (D), and deasphalting (SDA).

IPC Classes  ?

• C10C 3/00 - Working-up pitch, asphalt, bitumen
• C10C 1/04 - Working-up tar by distillation
• C10C 1/18 - Working-up tar by extraction with selective solvents
• C10C 3/08 - Working-up pitch, asphalt, bitumen by selective extraction
• C10G 21/14 - Hydrocarbons
• C10G 67/04 - Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one process for refining in the absence of hydrogen only plural serial stages only including solvent extraction as the refining step in the absence of hydrogen
• C10G 49/22 - Separation of effluents

Abstract

2S, passing both the stream containing the reaction product with dispersed catalyst from the hydroprocessing section and the stream containing the reaction product with dispersed catalyst from the second hydroprocessing section, to one or more distillation or flash stages, whereby the more volatile fractions are separated from the distillation residue (tar) or from the liquid discharged from the flash unit, sending the distillation residue (tar) or the liquid discharged from the flash unit, containing the catalyst in the dispersed phase, with a high content of metal sulphides, produced by demetallization of the charge, to a second deasphalting section thereby obtaining deasphalted oil and asphaltenes.

IPC Classes  ?

• C10G 65/14 - Treatment of hydrocarbon oils by two or more hydrotreatment processes only plural parallel stages only
• C10G 49/22 - Separation of effluents
• C10G 45/00 - Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds
• C10C 3/08 - Working-up pitch, asphalt, bitumen by selective extraction

Abstract

Process for the conversion of heavy charges chosen among heavy and extra heavy crude oils, distillation residues, "heavy oils" coming from catalytic treatments, "thermal tars", bitu- men from oil sands, coals of various nature and other high boiling charges of hydrocarbon origin known as "black oils", by means of the joint use of at least three of the following process units: deasphalting (SDA1), hydroconversion with cata- lysts in slurry phase (HT1), distillation or flash (D), char- acterized by the fact of comprising the following stages: - sending the heavy charge to a deasphalting section (SDA1) in presence of a solvent obtaining two streams: one consisting of Deasphalted oil (DAO1 from SDA1), the other one containing as- phaltenes; - mixing the flow consisting of deasphalted oil (DAO1 from SDA1) with an appropriate hydrogenation catalyst and sending the thus obtained mixture to a hydroprocessing section (HT1) and introducing into it hydrogen or a mixture containing hydrogen and H2S; -mixing the flow consisting of asphaltenes coming out of the deasphalting section (SDA1) with an appropriate hydrogena- tion catalyst and sending the thus obtained mixture to a second hydroprocessing section (HT2) and introducing into it hydrogen or a mixture containing hydrogen and H2S; -sending both the streams containing the reaction product of the hydroprocessing section (HT1) and the catalyst in the dispersed phase to one or more distillation or flash stages (D9) where the most volatile fractions, including the gases produced in the two hydroprocessing reactions (HT1 and HT2), are separated from the distillation residue (tar) or from the liquid coming out of the flash unit; - sending the distillation residue (tar) or the liquid coming out of the flash unit, containing the catalyst in the dispersed phase rich with metal sulphides, produced because of the demetallization of the charge, and possibly contain- ing coke, to a second deasphalting section (SDA2) in pres- ence of solvents , thus obtaining two streams, one consist- ing of deasphalted oil (DAO2 from SDA2) and the other con- sisting of asphaltenes, a part of which, unless some drain- ing takes place, is recycled to the hydroprocessing section (HT1) and the other part is recycled to the second hydro- processing section (HT2).

IPC Classes  ?

• C10G 67/04 - Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one process for refining in the absence of hydrogen only plural serial stages only including solvent extraction as the refining step in the absence of hydrogen

Abstract

Process for the conversion of heavy charge stocks selected from heavy and extra-heavy crude oils, distillation resi- dues, heavy oils from catalytic treatment, thermal tars, bitumens from oil sands, carbons of different origins and other high boiling charges of a hydrocarbon origin known as "black oils", by means of the combined used of at least the three following process units: solvent deasphalting (SDA), hydroconversion with slurry phase catalysts (HT), distilla- tion or flash (D), characterized in that it comprises the following steps: * sending the heavy charge stock to a deasphalting sec- tion (SDA) in the presence of solvents, obtaining two streams, one consisting of deasphalted oil (DAO), the other containing asphaltenes; * mixing the stream consisting of deasphalted oil (DAO) with a suitable hydrogenation catalyst precursor and send- ing the mix obtained to a hydrotreating reactor (HT), in- troducing, into the same reactor, hydrogen or a mix con- taining hydrogen and H2S; * sending the stream containing the product of the hy- drotreatment reaction and the catalyst in dispersed phase to one or more distillation or flash (D) steps, by means of which the most volatile fractions are separated, among which the gases produced in the hydrotreatment reaction, from the distillation residue (tar) or from the liquid com- ing from the flash unit; * recycling of at least a portion of the distillation residue (tar) or the liquid coming from the flash unit, containing catalyst in dispersed phase, rich in metal sul- phides produced by de-metallization of the charge and pos- sibly coke, to the hydrotreating section (HT).

IPC Classes  ?

• C10G 67/04 - Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one process for refining in the absence of hydrogen only plural serial stages only including solvent extraction as the refining step in the absence of hydrogen