|
Match
|
Document |
Document Title |
|
|
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...
|
|
|
7588678 |
Hydrocracking process with recycle, comprising adsorption of polyaromatic compounds from the recycled fraction on an absorbant based on silica-alumina with a limited macropore content
The invention concerns an improved hydrocracking process having a step for eliminating polyaromatic compounds from at least a portion of a recycled fraction by adsorption on a particular adsorbent...
|
|
|
7465389 |
Production of extra-heavy lube oils from Fischer-Tropsch wax
Extra heavy lube base stocks are separated from heavy lube oils with a polar solvent in an amount sufficient to form a first light phase and a second heavy phase. The phases are then separated and...
|
|
|
7074320 |
Preparing a high viscosity index, low branch index dewaxed oil
An integrated process for preparing a lubricating oil base stock includes an isomerization step followed by a solvent dewaxing step. A waxy feed is isomerized to an intermediate pore point, which...
|
|
|
7018525 |
Processes for producing lubricant base oils with optimized branching
This invention relates to processes of producing lubricant base oils comprising paraffinic hydrocarbon components that have optimized branching. The lubricant base oils comprising paraffinic...
|
|
|
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...
|
|
|
6962651 |
Method for producing a plurality of lubricant base oils from paraffinic feedstock
A method for producing lubricant base oils is provided comprising the steps of: (a) hydroisomerizing a feedstock over a medium pore size molecular sieve catalyst under hydroisomerization conditions...
|
|
|
6663768 |
Preparing a HGH viscosity index, low branch index dewaxed
An integrated process for preparing a lubricating oil base stock includes an isomerization step followed by a solvent dewaxing step. A waxy feed is isomerized to an intermediate pore point, which...
|
|
|
6524469 |
Heavy oil upgrading process
An improved heavy oil conversion process is disclosed in which the heavy oil feed is first thermally cracked using visbreaking or hydrovisbreaking technology to produce a product that is lower in...
|
|
|
6416655 |
Selective extraction using mixed solvent system
A method for concentrating the amount of alkylated mono-aromatics in a lubricating oil feedstock useful as a feedstock for sulfonation. The method comprises extracting a feedstock rich in aromatics...
|
|
|
6383366 |
Wax hydroisomerization process
Waxy feeds are treated under hydroisomerization conditions to produce good yields of an isomerate product of high VI by using a silica-alumina based catalyst in which the silica-alumina has a pore...
|
|
|
6315891 |
Production of lubricant base oils
A process for producing a waxy product comprises hydrotreating a feedstock comprising a Fischer-Tropsch wax and a petroleum-based waxy distillate, to produce a range of hydrogenated products, and...
|
|
|
6287454 |
Catalytic dewaxing process for producing lubricating oils
Lubricant oils of low pour point and improved oxidation stability are produced by catalytically dewaxing a lube feedstock over a zeolite dewaxing catalyst such as ZSM-5 in the hydrogen or...
|
|
|
6274032 |
Method of and means for upgrading hydrocarbons containing metals and asphaltenes
A hydrocarbon source feed is upgraded using a solvent deasphalting (SDA) unit employing a solvent having a critical temperature T c by initially separating from a first hydrocarbon input stream...
|
|
|
6231749 |
Production of high viscosity index lubricants
Petroleum wax feeds are converted to high viscosity index lubricants by a two-step hydrocracking-hydroisomerization process in which the wax feed which exhibits branchingis initially subjected to...
|
|
|
6171471 |
Heavy oil upgrading process (LAW813)
The present invention is a slurry-type process for upgrading heavy oils to FCC and S/C feeds under temperature and pressure conditions similar to MSHP, but employing catalysts in concentrations...
|
|
|
6171473 |
Integrated residue thermal cracking and partial oxidation process
A residue from petroleum refining is thermally cracked to convert the residue to useful cracked products and to generate fuel gas. The residue is cracked by contact with hot synthesis gas produced...
|
|
|
6165348 |
Process for the production of an internal combustion engine fuel base by hydrotreatment and extraction, and the product produced therefrom
The invention concerns a petroleum product and a process for the production of a petroleum product which can form part of a blend for an internal combustion engine fuel, the process comprising a)...
|
|
|
6124514 |
Process for generating pure benzene from reformed gasoline
A process is disclosed for generating pure aromatic compounds from a reformed gasoline which contains aromatic compounds, olefins, diolefin, and triolefins, which comprises the steps of: (a)...
|
|
|
6110358 |
Process for manufacturing improved process oils using extraction of hydrotreated distillates
A method for producing a process oil in which a naphthenic rich distillate is processed through a single hydrotreating stage, the hydrotreated distillate is then solvent extracted to yield a...
|
|
|
6103101 |
Process for producing lube base oils of high viscosity index and diesel oil of high cetaned number
A process is described for the hydroisomerization/hydrocracking of paraffinic streams to yield lube oils of viscosity index of at least 105 and pour point -6° C. or less, whereby a paraffinic feed...
|
|
|
6090270 |
Integrated pyrolysis gasoline treatment process
An integrated process for treating pyrolysis gasolines by depentanizing the pyrolysis gasoline in a first distillation column reactor which also subjects the C 5 fraction to selective...
|
|
|
6017441 |
Multi-step catalytic process for conversion of a heavy hydrocarbon fraction
A process for converting a heavy hydrocarbon fraction comprises treating the hydrocarbon feed in a hydroconversion section in the presence of hydrogen, the section comprising at least one...
|
|
|
5980730 |
Process for converting a heavy hydrocarbon fraction using an ebullated bed hydrodemetallization catalyst
A process for converting a heavy hydrocarbon fraction comprises treating the hydrocarbon feed in a hydroconversion section in the presence of hydrogen, the section comprising at least one...
|
|
|
5976351 |
Wax hydroisomerization process employing a boron-free catalyst
This invention discloses a process for producing a high Viscosity Index lubricant having a VI of at least 125 from a waxy hydrocarbon feed having a wax content of at least 40 wt %. The process...
|
|
|
5932090 |
Process for the conversion of heavy crude oils and distillation residues to distillates
The process for the conversion of heavy crude oils or distillation residues to distillates comprises the following steps: mixing the heavy crude oil or distillation residue with a suitable...
|
|
|
5919355 |
Method of and apparatus for processing heavy hydrocarbons
A fractioning solvent deasphalting plant applies a solvent whose critical temperature is T c to a hydrocarbon feed containing asphaltenes and atmospheric distillate having fractions that boil...
|
|
|
5885438 |
Wax hydroisomerization process
This invention discloses a process for producing a high Viscosity Index lubricant having a VI of at least 125 from a waxy hydrocarbon feed having a wax content of at least 40 wt %. The process...
|
|
|
5770047 |
Process for producing reformulated gasoline by reducing sulfur, nitrogen and olefin
A process for upgrading a nitrogen and sulfur rich heavy naphtha feedstock includes the steps of providing a naphtha feedstock having an initial nitrogen content, an initial sulfur content and an...
|
|
|
5685972 |
Production of benzene, toluene, and xylene (BTX) from FCC naphtha
Cracked naphtha feeds such as FCC naphtha and coker naphtha are upgraded to produce chemical grade BTX (benzene, toluene, xylene with ethylbenzene) while co-producing a low sulfur gasoline of...
|
|
|
5552033 |
Integrated process for increasing C.sub.6 to C.sub.8 aromatics content in reformate prepared from C.sub.9.sup.+ aromatics-containing feed
An integrated process for increasing C 6 to C 8 aromatics content in reformate prepared from C 9 + aromatics-containing feed comprises: 1) pretreating a raw naphtha feedstream containing C 9...
|
|
|
5464526 |
Hydrocracking process in which the buildup of polynuclear aromatics is controlled
The buildup of heavy polynuclear aromatic compounds in a hydrocracking system is controlled by contacting at least a portion of the recycle oil to the hydrocracker with a porous solid that has been...
|
|
|
5462650 |
Process for producing low viscosity lubricating base oil having high viscosity index
A process for the production of a high viscosity index, low viscosity lubricating base oil having a kinematic viscosity of 3.0 to 5.0 mm 2 /s at 100° C., a viscosity index of 120 or more and a...
|
|
|
5372703 |
Lubricating oils
Lubricant base oils are made up essentially of 2-15% by weight of a total aromatics content, greater than 60% by weight of isoparaffins and monocyclic naphthenes in total, more than 30% by weight...
|
|
|
5362382 |
Resid hydrocracking using dispersed metal catalysts
Heavy oils are advantageously preconditioned by heat soaking prior to hydrotreating with a dispersed metal catalyst to reduce coking in a two stage hydrotreating process. The effluent of a...
|
|
|
5308470 |
Non-carcinogenic asphalts and asphalt blending stocks
Non-carcinogenic asphalts and asphalt blending stocks are produced from reduced hydrocarbon feedstocks. Such non-carcinogenic products are produced by establishing a functional relationship between...
|
|
|
5300213 |
Process for making basestocks for automatic transmission fluids
An automatic transmission fluid basestock of mineral oil origin is produced from a neutral distillate fraction, preferably a medium neutral distillate, by severe furfural extraction to a dewaxed...
|
|
|
5273645 |
Manufacture of lubricating oils
A method for reducing the pour point of a hydrocarbon feedstock that contains aromatic compounds, sulfur-containing compounds and nitrogen-containing compounds is provided. The method involves...
|
|
|
5258117 |
Means for and methods of removing heavy bottoms from an effluent of a high temperature flash drum
A process for improving the performance of heavy oil refining units in a resid hydrotreating unit equipped for resid hydrotreating. The partially refined resid stream issuing from a train of...
|
|
|
5232577 |
Hydrocracking process with polycyclic aromatic dimer removal
A process for separation and removal of stable polycyclic aromatic dimer foulants from refinery process streams by blending a paraffinic stream with a portion of heavy effluent from a hydrocracking...
|
|
|
5228978 |
Means for and methods of low sulfur and hydrotreated resids as input feedstreams
The inventive solvent extraction process uses hydrotreated (HTR) and low sulfur (LSR) resids feedstreams in a single deasphalter unit and in a way that optimizes the disposition of the oils,...
|
|
|
5185486 |
Method of reducing the benzene content of gasolines
The benzene content of hydrocarbon gasolines is accomplished by (a) fractionating at least one hydrocarbon gasoline into a light fraction A, with an increased benzene content, and a heavy fraction...
|
|
|
5171422 |
Process for producing a high quality lube base stock in increased yield
A process is provided for producing a high quality lubricating oil base stock in increased yield. The process includes a hydrocracking step employing a catalyst composition comprising a zeolite of...
|
|
|
5124026 |
Three-stage process for deasphalting resid, removing fines from decanted oil and apparatus therefor
The invention reduces cracking catalyst fines in decanted oil by mixing the decanted oil (DCO) containing cracking catalyst fines with asphaltene and then treating the DCO-asphaltene mixture with a...
|
|
|
5124027 |
Multi-stage process for deasphalting resid, removing catalyst fines from decanted oil and apparatus therefor
The invention reduces cracking catalyst fines in decanted oil by mixing the decanted oil (DCO) containing cracking catalyst fines with a resid oil and then treating the DCO-resid mixture with a...
|
|
|
5110445 |
Lubricant production process
Hydrocarbon lubricants having a high viscosity index (V.I.) and low pour point are produced by hydroisomerizing a waxy lube feed such as slack wax or a waxy gas oil over zeolite beta after which...
|
|
|
5059303 |
Oil stabilization
A method for stabilizing oil is provided. An oil fraction having hydrocarbons with an initial boiling point of about 200° F. to about 1050° F. is hydrotreated to reduce the nitrogen content of...
|
|
|
5024750 |
Process for converting heavy hydrocarbon oil
Heavy hydrocarbon oil, containing asphaltene, sulfur and metal contaminants, is hydrotreated in the presence of a hydrotreating catalyst having a small pore diameter in an initial process step to...
|
|
|
5021143 |
Process of fractionation and extraction of hydrocarbons allowing obtaining a cut of increased octane index and a kerosene of improved smoke point
The invention relates to a process for hydrocarbon fractionation and extraction making it possible to obtain a petrol with an improved octane number and a kerosene with an improved smoke point....
|
|
|
5015359 |
Hydrodewaxing method with interstate recovery of olefin
Hydrocarbon feeds are dewaxed and hydrotreated in a two-stage dewaxing-hydrotreating reactor system with interstage separation of olefinic and naphtha and light olefins. Separation of the naphtha...
|