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Patent Searching and Data


Matches 401 - 450 out of 1,527

Document Document Title
WO/1998/055564A1
According to the invention, liquid residual oil from processing crude oil, natural bitumen or oil sand is mixed in a mixer with hot coke as a heat carrier (heat-carrier coke) whereby 60 to 90 weight per cent of the residual oil is evapor...  
WO/1998/050128A1
A new and improved two-stage oil bypass filter device (10) is provided to enable effective and efficient removal of both solid particulate and volatile oil contaminants while also allowing the addition and mixing of certain oil additives...  
WO/1998/046337A1
The invention concerns a method for tangential filtration of a viscous fluid or liquid which consists in dissolving a third body in supercritical state in said viscous fluid or liquid so as to lower the viscosity. The invention also conc...  
WO/1998/037991A1
Friable solid material contaminated by oxidizable hydrocarbons such as petrochemicals is delivered into a system wherein the material is subjected to a series of physical and chemical reactions to separate the contaminants from the solid...  
WO/1998/017744A1
Fuels and lubricants are purified by contacting and mixing each with water, heating the mixtures, and then separating the lubricants and fuels from the water. The resulting lubricants and fuels have reduced amounts of contaminants as com...  
WO/1998/013441A1
A method and apparatus for removing volatile sulphur containing compounds from a body of liquid hydrocarbons stored in a closed vessel such as an oil tanker cargo hold or a land base facility. A gas such as nitrogen or engine exhaust gas...  
WO/1998/004653A1
The method consists in that during an exposition of a heavy hydrocarbon raw material to ionizing radiation, said heavy hydrocarbon raw material is exposed simultaneously to accelerated particles in the amount of at least one positively a...  
WO1997035945A3  
WO/1997/044121A1
Provided is a membrane separation method for separating a first component (106) from a second component (108) in a fluid mixture (102). The method is particularly useful for separating a more highly unsaturated organic compound from a le...  
WO/1997/035945A2
A process for purifying a liquid hydrocarbon feedstock containing organo-sulfur compounds wherein an aqueous sulfuric acid solution containing ions of a transition metal, such as vanadium, chromium, manganese, cobalt, cerium or mixtures ...  
WO/1997/031693A1
The present invention relates to a method for separating liquid from a slurry (10) of solid particles and liquid contained in a vessel (1) in the presence of a gas, which comprises degasifying (12) the slurry and passing the degasified s...  
WO/1997/029169A1
A process for desalting a crude oil comprises (1) injecting steam into the oil to form a steam-injected oil; (2) adding water to the steam-injected oil to form a mixture; (3) introducing the mixture to a desalter; (4) inducing the format...  
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...  
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...  
WO/1997/014766A1
The viscosity of hydrocarbon feeds is reduced from crudes or crude by thermal treatment.  
WO/1997/011185A1
The invention relates to the discovery that the rate of reaction of the desulfurization of fossil fuels is enhanced by the addition of an oxidoreductase to the biocatalyst. The invention is drawn to a method for enhancing the rate of des...  
WO/1997/004042A1
Disclosed are methods for accelerating the settling of finely divided oil and water insoluble solids in hydrocarbon fluids using an effective amount of an alkylphenol ethoxylate compound. Preferably, the hydrocarbon is a fluid catalytic ...  
WO/1997/004043A1
A residuum feedstock (10) is upgraded in a short vapor contact time thermal process unit (11) comprised of a horizontal moving bed of fluidized hot particles. The resulting upgraded product (14) is then fed to a fluid catalytic cracking ...  
WO/1996/041070A1
A process for enhancing the fuel form, raising the energy content, and lowering the level of impurities of low rank coals and/or carbonaceous wastes, like Municipal Solid Waste (MSW), Refuse Derived Fuel (RDF), and sewage sludge, by prov...  
WO/1996/040841A1
The invention pertains to the separation of different substances, more specifically, to a method and device for the filtration, degassing and dehydration of, and removal of ageing products from insulation and other petroleum oils. The te...  
WO1996022260A3  
WO/1996/033011A1
Disclosed are a method and apparatus for conditioning hydrocarbon liquids by applying mechanical vibrations before fractionation. The method involves introducing the liquid into a cavity (1) in a rotating wheel (2), expelling the liquid ...  
WO/1996/028388A1
A method for recuperating crude oil from the body of a spill. First, the body of the spill is sprayed at low pressure then the same operation is done at a relatively higher pressure of at least 100 psi. After the dispersant is allowed to...  
WO/1996/025471A1
Petroleum acids, e.g., naphthenic acids, are removed from crudes or crude fractions by thermal treatment.  
WO/1996/023853A1
High-vacuum oil refinery systems and process are disclosed in this invention. The systems and process enable to carry out vaporization and distillation of oils under the condition of 1 - 10-4 Torr of high vacuum and at the temperature of...  
WO/1996/023854A1
An oil reclamation device includes an evaporator head (11) and base (12) and defines an evaporator chamber (6) between them. An upwardly vertical extending heating element (18) is disposed within the evaporator base for heating oil conta...  
WO/1996/022260A2
In a process for separating linear from branched hydrocarbons, the feed is brought in contact with a carbon membrane with critical size from 0.39 to 0.55 nm. The isomer with the larger size remains on the feed size. A membrane can be pro...  
WO/1996/005903A1
A device for purifying gasoline by separating the paraffins and varnishes that cause air pollution when burned through an internal-combustion engine. The device includes an inlet fitting (1), either a removable cap (2) or a non-removable...  
WO/1995/031516A1
The invention relates to a method of separating a multiple phase liquid medium comprising a first liquid phase and a second liquid phase wherein the medium is contacted with a first filter, said filter having been wetted by a wetting age...  
WO/1995/022589A1
A process for significantly decreasing the acid sludge settling time in waste oil recovery processes comprising the steps of heating used oil to a high temperature above 725 degrees Fahrenheit (4), cooling the heated oil (6), adding an o...  
WO/1995/014850A1
Disclosed is a method and system for recovering energy from low-grade fuels such as industrial, municipal and agricultural waste, low-grade carbonaceous fuels such as lignite and similar solid fuels in which the fuel is comminuted into s...  
WO/1995/008606A1
The pervaporative treatment of hydrocarbon feeds which have been exposed to air or oxygen and which contain mixtures of aromatic and non-aromatic hydrocarbons to selectively separate the feed into an aromatics rich stream and a non-aroma...  
WO/1995/007134A1
To remove acid components, such as mercaptans, from liquid hydrocarbons, such as light oil fraction, a stream of hydrocarbon (2, 3) and a stream of an aqueous alkali solution (4, 5) are fed either side of a porous membrane, the pores of ...  
WO/1994/025540A1
The invention relates to a process for the removal of mercury and/or other heavy metals from a cracker feed with the aid of an adsorbent. The process is characterized in that the feed is also subjected to magnetic filtration.  
WO/1994/015689A1
A combination filter and evaporator unit (10) for use in small engine applications includes a filter member (12) that is screw threadedly engaged to the evaporator unit (14) to facilitate replaceement of filter media (18) as needed. The ...  
WO/1994/013756A1
This invention relates to a method for ultrafiltering heavy hydrocarbons containing detrimental qualities of metals and CCR, said method comprising feeding the heavy hydrocarbons to a first ultrafiltration stage wherein the feed is conta...  
WO/1994/010114A1
The present invention is a process for the recovery of normal alcohols, especially C1-C20 n-alcohols, preferably n-C4-C14 alcohols, most preferably n-C6-C11 alcohols from n-paraffins by means of pervaporation through a membrane. The alco...  
WO/1994/007592A1
The selectivity of a membrane pervaporation aromatics/non-aromatics separation process is unexpectedly improved by the recycle of permeate to the separation process for co-processing with fresh feed. The selectivity obtained is greater t...  
WO/1994/007587A1
The invention deals with filtering and processing polluted liquids, in particular used oil, but also creosotes or coolants or cooling water. The aim of the invention is to provide a compact, portable and economic device having however a ...  
WO/1994/007972A1
Straight run hydrocarbon distillate streams containing low concentrations of 2-ring aromatics can be processed to remove a high percentage of the 2-ring aromatics by contacting said stream with one side of a polyester imide membrane unde...  
WO/1993/004143A1
Hard asphalts exhibiting acceptable penetration and low temperature properties can be produced from vacuum residua from which such hard asphalts are not normally obtainable via typical vacuum distillate such as that derived from Arab Lig...  
WO/1992/022624A1
Apparatus for reclaiming a useful oil product has an evaporation chamber, including an inlet for the waste oil, and an outlet for the vaporized oil, as a useful oil product. Burners are provided for heating the evaporation chamber to vap...  
WO/1992/019376A1
A demetallization process for catalysts used for chemical conversion of hydrocarbons, the catalysts containing at least vanadium as a metal poison, wherein the poisoned catalyst is contacted in a sulfiding zone with a sulfiding agent and...  
WO/1992/017427A1
The separation of aromatic hydrocarbons from mixtures of aromatic and non-aromatic hydrocarbon feeds under pervaporation conditions, is improved by the control of the amount of oxygen present in the feed. The amount of oxygen in the feed...  
WO/1992/016478A1
A semi-permeable membrane process of separating impurities from a hydrocarbon mixture. A fuel gas sweep gas is used to purge and dilute the permeate. Because this reduces the partial pressure of the impurities, the driving force for perm...  
WO/1992/010276A1
A multi-block polymer comprising an oxazolidone prepolymer chain extended with a second compatible prepolymer, the membrane made therefrom and the use of said membrane in aromatics/non-aromatics separations is disclosed. The multi-block ...  
WO/1992/010274A1
The present invention is directed to a multi-block polymeric material comprising a first amide acid prepolymer, made by combining A) a diamine with B) a dianhydride or its corresponding tetraacid or diacid-diester in an A/B mole ratio ra...  
WO/1992/008770A1
Commercially valuable oil is recovered from refinery-produced, Resource Conservation and Recovery Act classified, hazardous waste oil sludges by a series of volatilizing and condensing steps (which may vary depending on the oil, water, a...  
WO/1992/007649A1
A dimensionally stable, composite membrane of a microporous film in laminar contact with a continuous perfluoro ion exchange resin layer is provided. The composite membrane comprises a continuous perfluoro ion exchange polymer layer whic...  
WO/1992/007921A1
The invention relates to a process and installation for producing liquid fuels and raw chemicals from petroleum as part of a refinery process with processing stages for distillation, thermal and/or catalytic cracking and reformation wher...  

Matches 401 - 450 out of 1,527