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7618530 |
Heavy oil hydroconversion process
A method for the efficient conversion of heavy oil to distillates using sequential hydrocracking in the presence of both supported and colloidal catalyst immediately followed by a high...
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7601254 |
Integrated fluid catalytic cracking process
A process for the conversion of a hydrocarbon feedstock to produce olefins, aromatic compounds and ultra low sulfur diesel wherein the hydrocarbon feedstock is reacted in a fluid catalytic cracking...
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7591940 |
Combination hydrocracking process for the production of ultra low sulfur diesel
A catalytic hydrocracking process for the production of ultra low sulfur diesel wherein a hydrocarbonaceous feedstock is hydrocracked at elevated temperature and pressure to obtain conversion to...
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7531082 |
High conversion hydroprocessing using multiple pressure and reaction zones
In the refining of crude oil, hydroprocessing units such as hydrotreaters and hydrocrackers are used to remove impurities such as sulfur, nitrogen, and metals from the crude oil. They are also used...
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7507325 |
Process for converting heavy petroleum fractions for producing a catalytic cracking feedstock and middle distillates with a low sulfur content
The invention relates to a process and installation for treating heavy petroleum feedstocks for producing a gas oil fraction that has a sulfur content of less than 50 ppm and most often 10 ppm that...
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7476309 |
Two-stage heavy feed hpc process
The present invention pertains to a method for hydroprocessing a heavy hydrocarbon oil, comprising bringing a heavy hydrocarbon oil into contact with hydroprocessing catalyst I in the presence of...
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7470358 |
Integrated process for the production of low sulfur diesel
An integrated process for the production of low sulfur diesel. The process utilizes a middle distillate hydrocarbon stream and a heavy distillate hydrocarbon stream. The middle distillate...
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7470357 |
Hydrocarbon conversion process
An integrated process for the upgrading of a vacuum gas oil feedstock and a light cycle oil feedstock. The vacuum gas oil feedstock is hydrodesulfurized and the light cycle oil feedstock is...
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7431831 |
Integrated in-line pretreatment and heavy oil upgrading process
A new residuum full hydroconversion slurry reactor system has been developed that allows the catalyst, unconverted oil, products and hydrogen to circulate in a continuous mixture throughout an...
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7410566 |
Hydroprocessing of hydrocarbon feedstock
The invention is directed to a process for hydroprocessing of hydrocarbon feedstock containing sulfur and/or nitrogen contaminants, said process comprising first contacting the hydrocarbon...
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7381321 |
Process for improving aromatic and naphtheno-aromatic gas oil fractions
Process for transforming a gas-oil fraction that makes it possible to produce a fuel that has a quality according to stringent requirements in terms of sulfur content, aromatic compound content,...
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7300565 |
Process to prepare a microcrystalline wax and a middle distillate fuel
The invention relates to a process to prepare a microcrystalline wax and a middle distillate fuel by
(a) hydrocracking/hydroisomerizing a Fischer-Tropsch product, wherein the weight ratio of...
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7285693 |
Process to prepare a catalytically dewaxed gas oil or gas oil blending component
A process to prepare a catalytically dewaxed gas oil or gas oil blending component by performing the following steps: (a) hydrocracking/hydroisomerizing a Fischer-Tropsch product; (b) separating...
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7276150 |
Method of desulfurizing gas oil fraction, desulfurized gas oil, and desulfurizer for gas oil fraction
The process for desulfurizing a gas oil fraction according to the invention comprises a low-boiling gas oil fraction hydrodesulfurization step (I) wherein a low-boiling gas oil fraction is...
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7267758 |
Flexible method for producing oil bases and middle distillates with hydroisomerization-conversion followed by catalytic dewaxing
For producing very high quality base stock and for simultaneously producing high quality middle distillates, successive hydroisomerisation and catalytic dewaxmg steps are employed wherein the...
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7261808 |
Upgrading of pre-processed used oils
A process to further upgrade a pre-processed used lubricating oil by:
(a) contacting the partially upgraded used oil in the presence of hydrogen with a hydrodemetallization catalyst; (b)...
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7238275 |
Combined hydrotreating process and configurations for same
At least two feedstocks ( 210 A) ( 210 B) with different boiling point ranges are hydrotreated in an integrated hydrogenation plant ( 200 ) using an interbed separator ( 240 ) that is fluidly...
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7238274 |
Combined hydrotreating and process
First ( 210 ) and second ( 240 ) feedstocks are hydrotreated in an integrated hydrogenation plant ( 200 ) using a hot separator ( 230 ) that provides a vapor stream containing at least some of the...
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7232848 |
Gas agitated multiphase reactor with stationary catalyst solid phase
An apparatus for converting a gaseous and/or liquid feed fluid to gaseous and/or liquid products using a solid catalyst comprises a reactor, a liquid phase disposed within the reactor volume, a...
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7220350 |
Wax isomerate yield enhancement by oxygenate pretreatment of catalyst
A waxy hydrocarbon feed is catalytically treated with a dewaxing catalyst that has been selectively activated. The selective activation of the catalyst involves treating the catalyst with at least...
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7220349 |
Process for the production of middle distillates by two-step hydroisomerisation and hydrocracking of feeds from the Fischer-Tropsch process
The invention concerns a process for producing middle distillates from an effluent produced by a Fischer-Tropsch unit, comprising optional fractionation to obtain at least one heavy fraction with...
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7160436 |
Method for two-step hydrocracking of hydrocarbon feedstocks
An improved hydrocracking process of hydrocarbon charges, in two stages with an intermediate separation, in which the second-stage of hydrocracking is carried out in the presence of an added...
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7156977 |
Hydroprocessing process and method of retrofitting existing hydroprocessing reactors
A process for hydroprocessing a hydrocarbon feed. The hydrocarbon feed is first admixed with a hydrogen rich gas. The resultant process stream is then contacted with a hydrocracking catalyst. The...
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7115198 |
Hydrocarbon conversion using molecular sieve SSZ-51
A novel crystalline aluminophosphate and metalloaluminophosphate of the molecular sieve type, denominated SSZ-51, is prepared by hydrothermal synthesis from reactive sources of aluminum and...
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7087153 |
Combination hydrocracking process for the production of ultra low sulfur diesel
A catalytic hydrocracking process for the production of ultra low sulfur diesel wherein a hydrocarbonaceous feedstock is hydrocracked at elevated temperature and pressure to obtain conversion to...
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7077948 |
Catalytic dewaxing process
Process for the catalytic dewaxing of a hydrocarbon oil feed including waxy molecules and more than 500 ppmw of sulphur or sulphur containing compounds by contacting the oil feed under catalytic...
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7074321 |
Combination hydrocracking process for the production of low sulfur motor fuels
An integrated hydrocarbon conversion process for the production of low sulfur fuels utilizing a hydrocracking zone, a diesel hydrodesulfurization zone, a fluid catalytic cracking zone and a...
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7071237 |
Method to start a process for hydrocarbons
The invention relates to a method to start a process for producing normally gaseous, normally liquid and optionally normally solid hydrocarbons from a hydrocarbonaceous feed, which process involves...
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7005059 |
Catalyst having at least one element of group VIIB and its use in hydro-treating
The invention relates to a catalyst for the transformation of hydrocarbon-containing feedstocks, in particular hydrotreatment, comprising at least one metal of group VIIB and at least one...
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7001503 |
Method and apparatus for stripping sulfur-containing compounds from hydrocarbon feed stock in hydrorefining of petroleum distillates
A unit for hydrorefining of hydrocarbon crude oil comprising sulfur-containing compounds comprises first catalyst layer 33 and second catalyst layer 38 , top space 34 for separating vapor...
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7001502 |
Process for treating crude oil using hydrogen in a special unit
A process is provided for treating crude oil to visbreak and/or upgrade such oil using hydrogen gas. The process includes the steps of introducing hydrogen into a heated stream of crude oil or...
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6974535 |
Hydroconversion process for making lubricating oil basestockes
A process for producing a lubricating oil basestock having at least 90 wt. % saturates and a VI of at least 105 by selectively hydroconverting a raffinate from a solvent extraction zone in a two...
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6913688 |
Multi-stage hydrodesulfurization of cracked naphtha streams with interstage fractionation
A process for the selective hydrodesulfurization of olefinic naphtha streams containing a substantial amount of organically bound sulfur and olefins. The olefinic naphtha stream is selectively...
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6858127 |
Process for the preparation of middle distillates
A process for the preparation of one or more hydrocarbon fuel products boiling in the kero/diesel range from a stream of hydrocarbons produced in a Fischer-Tropsch process, in which process...
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6841062 |
Crude oil desulfurization
This invention relates to a crude oil desulfurization process which comprises hydrodesulfurizing a crude oil feed in a crude desulfurization unit. The desulfurized crude oil is then separated into...
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6814856 |
Method for improving a gas oil fraction cetane index
A process for transforming a gas oil cut from a conversion process or from an aromatic crude is described, the aim of the process being to improve the cetane number of said cut. The process...
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6808620 |
Hydrocarbon conversion using zeolite SSZ-64
The present invention relates to new crystalline molecular sieve SSZ-64 prepared using a N-cyclobutylmethyl-N-ethylhexamethyleneiminium cation or N-cyclobutylmethyl-N-ethylheptamethyleneiminium...
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6797154 |
Hydrocracking process for the production of high quality distillates from heavy gas oils
With this invention, high conversion of heavy gas oils and the production of high quality products is possible in a single high-pressure loop with reaction stages operating at different pressure...
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6797153 |
Catalyst for hydrocracking of heavy oils and method of hydrocracking heavy oils
A catalyst for the hydrocracking of heavy oils contains iron and active carbon having an MCH conversion rate of 40-80%, a specific surface area of 600-1000 m 2 /g of, a pore volume of 0.5 to 1.4 cm...
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6787026 |
Process for the production of high quality base oils
This invention is directed to a process for hydroprocessing vacuum gas oils and other feeds in order to produce unconverted oil suitable for use as base oil feed for white oils, Group III oils, and...
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6787025 |
Process for the production of high quality middle distillates from mild hydrocrackers and vacuum gas oil hydrotreaters in combination with external feeds in the middle distillate boiling range
In the refining of crude oil, vacuum gas oil hydrotreaters and hydrocrackers are used to remove impurities such as sulfur, nitrogen, and metals from the crude oil. Typically, the middle distillate...
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6783661 |
Process for producing oils with a high viscosity index
A process for producing oils with high viscosity indices from oil distillates or effluents from a conversion unit comprises the following steps: a) catalytic hydrotreatment of the feed in the...
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6783660 |
Multiple hydroprocessing reactors with intermediate flash zones
The instant invention comprises a hydroprocessing method having at least two stages. The first stage employs a hydroprocessing catalyst which may contain hydrotreating catalyst, hydrocracking...
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6776898 |
Process for softening fischer-tropsch wax with mild hydrotreating
A novel process for forming hydrocarbon waxes from synthesis gas is disclosed. This invention teaches a process whereby a Fischer-Tropsch wax can be formulated such that the wax softness as defined...
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6759438 |
Use of oxygen analysis by GC-AED for control of fischer-tropsch process and product blending
Methods for producing a substantially paraffinic Fischer-Tropsch product or a blended Fischer Tropsch product comprising a selected oxygenate concentration, and if required, a selected oxygenate...
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6726832 |
Multiple stage catalyst bed hydrocracking with interstage feeds
High boiling hydrocarbon materials are hydrocracked in a multiple stage process having ebullating or fixed catalyst bed hydrogenation reactor stages in series. Between the hydrogenation reactors is...
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6689273 |
Multireactor parallel flow hydrocracking process
Heavy hydrocarbons are upgraded to higher value distillates in a hydrocarbon conversion process which employs several parallel on-stream reaction zones which each contain both hydrotreating and...
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6676828 |
Process scheme for sequentially treating diesel and vacuum gas oil
A process for treating a vacuum gas oil and Diesel feed includes the steps of providing reaction feed containing vacuum gas oil, Diesel and sulfur-containing compounds; providing a stripping gas;...
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6656343 |
Process for producing synthetic naphtha fuel and synthetic naphtha fuel produced by that process
The invention provides a process for the production of a synthetic naphtha fuel suitable for use in compression ignition (CI) engines, the process including at least the steps of hydrotreating at...
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6656342 |
Graded catalyst bed for split-feed hydrocracking/hydrotreating
A method for hydroprocessing hydrocarbon products, preferably Fischer-Tropsch products, and a reactor useful for performing the method, are disclosed. The reactor includes one or more first...
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