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WO/2000/014179A1 |
A premium synthetic lubricating oil base stock having a high VI and low pour point is made by hydroisomerizing a Fischer-Tropsch synthesized waxy, paraffinic feed wax and then dewaxing the hydroisomerate to form a 650-750 °F+ dewaxate. ...
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WO/2000/014187A2 |
Premium synthetic lubricants comprise a synthetic isoparaffinic hydrocarbon base stock and an effective amount of at least one, and typically a plurality of lubricant additives such as a detergent, dispersant, antioxidant, antiwear addit...
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WO/2000/014178A1 |
Upgrading of a hydrocarbon feed (11) containing sulfur, metals, and asphaltenes involves applying the feed (11) to a distillation column (14) for producing a substantially asphaltene-free, and metal-free distillate fraction and a non-dis...
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WO/2000/009630A1 |
The instant invention is directed to a process for removing hard sulfurs from hydrocarbon streams comprising: selectively oxidizing hard sulfurs in a hydrotreated stream, under oxidizing conditions in the presence of an effective amount ...
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WO/2000/001929A1 |
A combined cycle power generating system in which power generating efficiency is increased when a combined cycle power generation is performed by using normal pressure residue oil obtained by distilling stock oil at normal pressure by a ...
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WO/1999/067345A2 |
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 the petrolic hydrocarbon fractions rangi...
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WO/1999/048846A1 |
The present invention is a method for controlling a process for producing a distillate fuel [15] heavier than gasoline. The process includes several different fractions, streams, including alcohols [8], olefins [11], and acids [11]. At l...
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WO/1999/045084A1 |
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 in unit (20) to produce a raffinate, solvent dewaxing the raffinate, selectively hydroconver...
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WO/1999/045085A1 |
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 pour point, which is at least 6 °C above a target pour poi...
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WO/1999/041334A1 |
Waxy feeds are converted to a basestock using a unitized mixed powdered pellet catalyst comprising a metal hydrogenation component on a support having a first dewaxing component and a second isomerization component, wherein the first com...
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WO/1999/041332A1 |
The present invention is directed to an easily biodegradable low viscosity, low Noack volatility lube oil material having a viscosity index (VI) in the range of about 110-145, $m(g)98 % saturates useful as lube oil basestock, automatic t...
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WO/1999/041330A1 |
It has been discovered that waxy feeds can be upgraded using a catalyst made by combining powdered dewaxing catalyst with powdered isomerization catalyst said mixture of powdered catalyst being formed into a discrete particle.
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WO/1999/041327A1 |
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 (20) to a two step hydroconversion through a first h...
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WO/1999/041338A1 |
A process for producing a high VI/low volatility lubricating oil basestock. The process comprises subjecting the raffinate from a solvent extraction step (40) to a two-step, single-stage hydroconversion process wherein the first step inv...
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WO/1999/041337A1 |
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 volume less of 0.99 ml/gm (H¿2?O), an a...
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WO/1999/041336A1 |
A process for preparing a lubricating oil basestock (43) having good low temperature properties is disclosed. The process includes contacting a feed (15) with a first amorphous isomerization catalyst (21) having a pore volume less than 0...
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WO/1999/041335A1 |
A method for producing a lube basestock from a waxy feed is disclosed in which a feed containing to 50 wt.% or more of wax is hydrotreated and stripped to lower the nitrogen and sulfur content of the feed. The feed is then hydroisomerize...
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WO/1999/038936A1 |
Bromine reactive hydrocarbon contaminants are removed from aromatic streams by first providing an aromatic feedstream having a negligible diene level. The feedstream is contacted with an acid active catalyst composition under conditions ...
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WO/1999/032577A1 |
Severely contaminated white mineral oils which fail the RCS specification are treated using an acid-treated bentonite clay, such as Tonsil CO 630G. The white oil products produced in the treatment may be a USP grade white oil.
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WO/1999/005081A1 |
A hydrocarbon conversion process comprises: 1) contacting a hydrocarbon feed such as, for example, gasoline in reactor (10), with a catalyst under sufficient conditions to effect the conversion of the hydrocarbon to a product stream comp...
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WO/1999/003578A1 |
A hydrodenitrogenation catalyst is prepared by decomposing a nickel (ammonium) molybdotungstate precursor and sulfiding, either pre-use or in situ, the decomposition product.
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WO/1998/041597A1 |
Alkines, dienes, and/or singly unsaturated hydrocarbons; compounds containing sulphur, arsenic and/or antimony; oxygen, hydrogen and/or carbon monoxide are removed from material flows in a total of at most three process steps. In a first...
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WO/1998/027180A1 |
A process for upgrading a wax-containing feedstock to produce a wax and a high VI/low volatility lubricating oil base stock. The process comprises subjecting the raffinate from a solvent extraction step (20) to a two step, single stage h...
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WO/1998/007805A2 |
The present invention relates to a process for heteroatom removal, particularly during process excursions, from petroleum and chemical hydrocarbon streams. The invention is comprised of at least two zones through which the hydrocarbon st...
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WO/1998/000479A1 |
A process for producing a high VI/low volatility lubricating oil basestock. The process comprises subjecting the raffinate from a solvent extraction step (40) to a two-step, single stage hydroconversion process wherein the first step inv...
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WO/1997/032944A1 |
In the process for the selective hydrogenation of dienes in supply flows containing them, such a flow is hydrogenated on a nickel-containing precipitating catalyst at a temperature of between 40 and 100 �C, a pressure of between 3 and ...
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WO/1997/025390A1 |
A delayed coking process in which a flash zone gas oil stream from the bottom of the coker fractionator (18) is upgraded by removing suspended solids using filter (30) and then hydroprocessing the stream to make it more attractive as a f...
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WO/1997/022469A1 |
An improved oxygen scavenging composition and packaging container formed therefrom is disclosed. The container is suitable for storage of oxygen sensitive materials and has as part of its exposed interior surface a composition composed o...
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WO/1997/021788A1 |
Discloses novel biodegradable high performance hydrocarbon base oils useful as lubricants in engine oil and industrial compositions, and process for their manufacture. A waxy, or paraffinic feed, particularly a Fischer-Tropsch wax, is re...
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WO/1997/012012A1 |
An integrated process is provided for preparing a dewaxed heavy lube base oil product and a dewaxed light lube base oil product from a waxy feedstock. The process includes separating the waxy feedstock into two or more fractions. A light...
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WO/1997/003148A1 |
A process for treating C3 to C12 petroleum fractions, such as a light cracked naphtha to be used as an etherification feed stock in which H2S is removed by distillation of at least the C3 fraction and mercaptans and diolefins are removed...
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WO/1997/000926A1 |
A method for controlling the manufacture of lubricating oils involving the steps of distillation, extracting, dewaxing and optionally hydrofining; or for controlling operating units associated with refinery or chemical processes with fee...
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WO/1996/026993A1 |
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 comprises catalytically dewaxing waxy paraff...
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WO/1996/017902A1 |
Petroleum wax feeds having a low oil content are converted to high viscosity index lubricants by a two-step hydrocracking-hydroisomerization process in which the wax feed is initially subjected to hydrocracking under mild conditions with...
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WO/1996/007713A1 |
A process for catalytically desulfurizing cracked fractions in the gasoline boiling range to acceptable sulfur levels uses an initial hydrotreating step to desulfurize the feed with some reduction in octane number, after which the desulf...
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WO/1996/006900A1 |
The invention relates to a process to selectively hydrogenate di-olefinically, poly-olefinically, and acetylenically unsaturated hydrocarbon components a C2 to C5+ or a C3 to C5+ fraction of a cracked hydrocarbon stream. The process comp...
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WO/1995/031517A1 |
Process for the electrophoretic removal of suspended inorganic solid particles from a residual hydrocarbon oil, said process comprising passing the residual hydrocarbon oil through one or more vessels, each comprising at least one electr...
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WO/1995/005435A1 |
Petroleum oils are obtained by vacuum distillation of fuel oil and subsequent purification, with solvents, of the fraction which boils off at above 490 �C to obtain a refined residue. The said refined residue is divided into two portio...
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WO/1995/005436A1 |
Distillation oils are obtained by treating oil fractions obtained from crude petroleum with selective solvents to obtain a refined product. That refined product is divided into two portions. The main portion undergoes hydrodeparaffinatio...
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WO/1995/003121A1 |
A catalyst comprises a hydrogenation/dehydrogenation component, such as a noble metal, deposited on an acidic solid product formed by modifying a Group IVB metal oxide with an oxyanion of a Group VIB metal. An example of this catalyst is...
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WO/1995/000604A1 |
A bottoms fraction of fuels hydrocracking which boils above about 316 �C (600 �F) and contains at least about 10 wt.% aromatics is converted to a reduced aromatics lube base stock product over a catalyst comprising a crystalline mate...
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WO/1994/022980A1 |
Low sulfur gasoline is produced from a catalytically cracked, sulfur-containing naphtha by fractionating the naphtha feed (10) into a low boiling fraction in which the majority of the sulfur is present in the form of mercaptans and a hig...
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WO/1994/016036A1 |
Low sulfur gasoline is produced by fractionating in a fractionator (10) a sulfur-containing naphtha into a low boiling fraction in which the majority of the sulfur is present in the form of mercaptans and a higher-boiling fraction in whi...
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WO/1994/014924A1 |
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 components are removed by extraction, e.g. ...
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WO/1994/011463A1 |
This invention relates to a stock oil pretreatment supply system adapted to supply heavy petroleum stock oil to a hydrogenator. In order to remove fine iron particles of not larger than 25 mu, which cannot be removed by the conventional ...
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WO/1994/010262A1 |
Low sulfur gasoline of relatively high octane number is produced from a catalytically cracked, sulfur-containing naphtha by hydrodesulfurization in a reactor zone (12) and treatment over an acidic catalyst, preferably an intermediate por...
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WO/1994/009090A1 |
A cracked FCC naphtha is withdrawn through line (12) and passes to a mercaptan oxidation (sweetening) unit (13) in which the mercaptans are converted to higher boiling disulfide compounds. The effluent from the mercaptan oxidation unit i...
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WO/1994/007798A1 |
Process to re-refine used oils, wherein the oils (A1) are initially subjected to a pretreatment (A) with a basic reagent (A2), then to a first preflash treatment (B) to eliminate the water (B1) and the most volatile fractions (B2) contai...
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WO/1994/004476A1 |
The specification describes a method for producing gasoline blendstock. A naphtha (3) is produced by contacting synthesis gas (1) with a catalyst (2) comprising cobalt supported on a ZSM-5 type zeolite at a temperature in the range from ...
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WO/1993/018114A1 |
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 aromatic components are removed by extract...
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