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7597795 |
Process for making lube oil basestocks
A process for producing lube oil basestocks involving solvent extracting a waxy feed to produce at least a lube oil boiling range raffinate, hydrotreating the lube oil raffinate to produce a...
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7582204 |
Method for treating a hydrocarbon feedstock including resin removal
The invention relates to a process, including removal of resins, for the treatment of a hydrocarbon charge, at least 80% of the compounds of which have a boiling point which is above or equal to...
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7384557 |
Method and apparatus for removing solute from a solid solute-bearing product
The process and apparatus are for removing a solute from a solute-bearing solid product by means of a solvent which remains in liquid state throughout the entire oil extraction process. In one...
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7288685 |
Production of olefins from biorenewable feedstocks
A process for producing olefins from biorenewable feedstocks has been developed. The process comprises first pretreating the feedstock, e.g. vegetable oil, to remove contaminants such as alkali...
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7226533 |
Process for re-refining used oils by solvent extraction
A process to re-refine used petroleum oils by extraction with aliphatic solvents, wherein after eliminating the extract solvent, the process consists of the following treatments, (a) flash,...
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7008460 |
Process for the production thermally converted light products and electricity
Process for the production of thermally converted light products from residual feedstock and electricity from syngas obtained from thermal conversion residue as feedstock, in which process flue gas...
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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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6951605 |
Method for making lube basestocks
A method to produce high quality lube oil products involving hydrotreating a waxy feed to produce a hydrotreated feed and subsequently hydrodewaxing the hydrotreated feed and hydrofinishing the...
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6773578 |
Process for preparing lubes with high viscosity index values
Lube base stocks and lube stock compositions, as well as a process for preparing lube base stocks and lube stock compositions, are disclosed. The lube oils preferably have a viscosity index above...
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6673234 |
Combined process of low degree solvent deasphalting and delayed coking
A combined process of low degree solvent deasphalting and delayed coking, which comprises feeding a deasphalting stock and a solvent into an extractor and making the yield of the deasphalted oil 70...
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6620313 |
Hydroconversion process using bulk group VIII/Group VIB catalysts
Hydroconversion process of petroleum and chemical feedstocks using bulk Group VIII/Group VIB catalysts. Preferred catalysts include those comprised of Ni—Mo—W.
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6592748 |
Reffinate hydroconversion process
A process for producing a high VI/low volatility lubricating oil basestock and a lubricating oil basestock prepared by said process. The process comprises subjecting the raffinate from a solvent...
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6551502 |
Process of removing sulfur compounds from gasoline
A process for the removal of sulfur compounds from a hydrocarbon stream is disclosed. In a preferred embodiment, the process includes extractive distillation of a gasoline stream from a fluid...
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6533925 |
Asphalt and resin production to integration of solvent deasphalting and gasification
This invention involves heat integration of a solvent deasphalting process with a gasification process and an improved process for separating a resin phase from a solvent solution comprising a...
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6531055 |
Method for reducing the naphthenic acid content of crude oil and fractions
The present invention relates to a process for reducing naphthenic acid content of crude oils and its fractions in the presence of an aqueous base selected from Group IA and IIA hydroxides and...
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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...
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6358399 |
Process for separating ethane and ethylene by solvent absorption and hydrogenation of the solvent phase
A process and a device for separating ethane and ethylene from a hydrocarbon steam-cracking effluent is described. Effluent ( 1 ) is absorbed in an absorption column ( 7 ) by a cooled solvent ( 9...
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6355850 |
Manufacture of electrical oil enriched with hydrofined gas oil for improved oxidation and electrical resistance
Electrical oils having improved uninhibited oxidation and electrical resistance are derived by blending a substantially nitrogen and sulfur free paraffinic or naphthenic base oil with a hydrofined...
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6340429 |
Process and device for separating ethane and ethylene from a steam-cracking effluent by solvent absorption and hydrogenation of the solvent phase
A process for separating ethane and ethylene from a hydrocarbon steam-cracking effluent is described. Effluent ( 1 ) is absorbed in an absorption column by a cooled solvent ( 9 ). At the bottom of...
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6332975 |
Anode grade coke production
The invention is a process for making anode grade coke which comprises solvent deasphalting a residue feedstock to obtain an essentially asphaltene-free, resin-containing stream and coking the...
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6332974 |
Wide-cut synthetic isoparaffinic lubricating oils
A wide-cut lubricant base stock is made by hydroisomerizing and then catalytically dewaxing a waxy Fischer-Tropsch synthesized hydrocarbon fraction feed and comprises the entire dewaxate having an...
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6329980 |
Driving circuit for display device
A signal driving circuit for an active matrix type display device having display pixels arranged in a matrix, comprises a signal waveform correcting circuit receiving an input pixel signal for...
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6325918 |
Raffinate hydroconversion process
A process for producing a high VI/low volatility lubricating oil basestock and a lubricating oil basestock prepared by said process. The process comprises subjecting the raffinate from a solvent...
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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...
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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...
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6248230 |
Method for manufacturing cleaner fuels
A method is provided for manufacturing cleaner fuels, in which NPC (Natural Polar Compounds), naturally existing in small quantities within various petrolic hydrocarbon fractions, are removed from...
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6099719 |
Hydroconversion process for making lubicating oil basestocks
A process for producing a lubricating oil basestock having at least 90 wt. % saturates and a VI of at least 105 by solvent extracting a feedstock to produce a raffinate, solvent dewaxing the...
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6080302 |
Method for making a process oil by using aromatic enrichment with extraction followed by single stage hydrofinishing (LAW764)
A method for producing a process oil is provided in which an aromatic extract oil is added to a paraffinic rich feed to provide a blended feed. The blended feed is then extracted with an aromatic...
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6007705 |
Method for demetallating petroleum streams (LAW772)
The present invention relates to a process for demetallating a petroleum stream by contacting a metals-containing petroleum feed in the presence of an aqueous base selected from Group IA and IIA...
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5976353 |
Raffinate hydroconversion process (JHT-9601)
A process for producing a high VI/low volatility lubricating oil basestock. The process comprises subjecting the raffinate from a solvent extraction step to a two step, single stage hydroconversion...
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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...
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5730858 |
Process for converting wax-containing hydrocarbon feedstocks into high-grade middle distillate products
The wax-containing hydrocarbon feedstocks are pre-treated by contacting them with a homogeneous solution containing 1-5 vol. % of an acid diluted in an alcohol/water mixture (preferably containing...
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5693191 |
Process for recovery of anhydrous hydrogen chloride from mixtures with non-condensable gases
A process is provided for the recovery of hydrogen chloride in anhydrous form from a dry (containing less than about 500 parts per million by weight of water) mixture of hydrogen chloride with one...
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5632867 |
Recovering a relatively volatile component of a solution from a less volatile component, e.g. as in solvent recovery
In a solvent recovery plant including a recovery or distillation tower from which solvent product is recovered overhead, an isothermal separator, preferably a cyclone, is used to separate liquid...
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5413695 |
Process for producing lube oil from solvent refined oils by isomerization over a silicoaluminophosphate catalyst
The invention provides for a process for producing lube oil having excellent viscosity and viscosity index properties and a low pour point from a solvent refined gas oil. The process comprises...
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5376257 |
Process for feed oil refining for production of lubricating oil
A process for feed oil refining for production of lubricating oil, by using an equipment for lubricating oil production including a fulfural refining unit, a hydrotreating unit and a ketone...
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5312543 |
Resid hydrotreating using solvent extraction and deep vacuum reduction
A resid hydrotreating process hydrotreats a resid bottoms fraction from the reduction of crude oil. The hydrotreated bottoms fraction is then subjected to deep vacuum reduction and in some cases...
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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...
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5302279 |
Lubricant production by hydroisomerization of solvent extracted feedstocks
Hydrocarbon lubricants having a high viscosity index (V.I.) and low pour point are produced by hydroisomerizing, over zeolite beta, a waxy lube feed such as a waxy vacuum gas oil whose aromatic...
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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...
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5286371 |
Process for producing needle coke
A process is provided for producing premium and super premium grade needle coke comprising the steps of passing a heavy resid feedstock to a resid hydrotreating reaction zone at resid hydrotreating...
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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...
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5271825 |
Turbine oil production
Turbine oils are produced from a distillate lube fraction by hydrocracking to remove aromatics, catalytically dewaxing, hydrofinishing then treating with an organic peroxide, such as ditertiary...
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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...
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5242578 |
Means for and methods of deasphalting low sulfur and hydrotreated resids
A refining process uses a two or four stage solvent separator coupled to receive an incoming feedstream of low sulfur resid and a solvent. In the preferred two stage separator, the mixture at the...
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5135640 |
High efficiency process for preparation of gasoline by catalytic cracking
Catalytic Cracking is effected by feeding thereto (i) a deasphalted vacuum resid together with (ii) a solvent treated virgin vacuum gas oil, the two being preferably mixed prior to solvent treating.
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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...
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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...
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5124025 |
Process for deasphalting resid, recovering oils, 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...
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5120428 |
Deashing of heavy hydrocarbon residues
A process is described for removing mineral or ash constituents from heavy hydrocarbon residues, such as those resulting from coal-oil coprocessing, residue hydrocracking or coal liquifaction. The...
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