| Document |
Document Title |
|
WO/2010/027862A2 |
A drag reducing additive for heavy oil, such as crude oil, includes a polymeric alkyl-substituted phenol formaldehyde resin and a solvent having at least one of an ester (e.g. ethyl acetate), an aldehyde (e.g. butyraldehyde), and an arom...
|
|
WO/2010/019548A1 |
Atmospheric and/or vacuum resid fractions of a high solvency dispersive power (HSDP) crude oil are added to a blend of crude oil to prevent fouling of crude oil refinery equipment and to perform on-line cleaning of fouled refinery equipm...
|
|
WO/2010/019551A1 |
A high solvency dispersive power (HSDP) crude oil is added to a blend of incompatible and/or near-incompatible oils to proactively address the potential for fouling heat exchange equipment. The HSDP component dissolves asphaltene precipi...
|
|
WO/2010/011804A2 |
The technical challenges for a smooth transition between using both a thermodynamic hydrate inhibitor (THI) and a kinetic hydrate inhibitor (KHI) to simply using only the KHI in multiple tie-in gas natural gas production systems is solve...
|
|
WO/2009/073442A9 |
A process to reduce the acidity of acidic crude oils for preventing corrosion during processing of the crude oils, including transferring through pipe lines, tanker ships and tank vehicles. Crude oil having substantial amount of organic ...
|
|
WO/2009/120653A2 |
Total acid number and/or corrosiveness of a crude or refined hydrocarbon, where the total acid number and/or corrosiveness is due to the presence of acid compounds such as carboxylic acid' (naphthenic acid), may be reduced by treating th...
|
|
WO/2009/108566A2 |
Heat exchanger fouling in organic chemical production processes may be reduced using an antifoulant additive. The antifoulant additive may have one component selected from the group consisting of an alkylphosphate ester, and an alpha ole...
|
|
WO/2009/085062A1 |
A method of reducing asphaltene and particulate induced fouling during the thermal processing of petroleum oils utilizes resin extracts from HSDP crude oils to disperse and solubilize asphaltenes and disperse inorganic particulate contam...
|
|
WO/2009/078694A1 |
The invention relates to formulations comprising an asphaltene-dispersing/-inhibiting additive based on oxazolidines derived from polyalkyl or polyalkenyl N-hydroxyalkyl succinimides. Said formulations can contain: inert organic solvents...
|
|
WO/2009/053971A1 |
The invention provides a process for inhibiting corrosion in refinery operations, in particular, for inhibiting naphthenic acid corrosion of the inner metallic surfaces of a refining apparatus induced during distillation of an acidic and...
|
|
WO/2009/045458A1 |
Targeted application of anti-fouling mechanisms in a heat exchange system produces higher rates of energy recovery. The anti-fouling mechanisms with high mitigation rates can be deployed at only the hottest portions of a pre-heat train t...
|
|
WO/2008/076570A2 |
A methodology and system is disclosed which addresses outstanding needs of refiners to process cheaper crudes or blends of crudes. This method and system comprises a number of steps, including characterizing the impact of various constit...
|
|
WO/2008/071008A1 |
A method to pre-heat gas at gas Pressure Reducing Stations. A first step involve providing at least one electrical line heater having a flow path for passage of natural gas through electrical heating elements. A second step involves pass...
|
|
WO/2008/068624A2 |
The invention relates to additives which, when mixed with petroleum-derived oils, act as anti-gumming, anti-fouling and asphaltene dispersants. The inventive additives are characterised in that they contain condensed sulphonic alkyl cres...
|
|
WO/2008/068628A2 |
The invention relates to an asphaltene stabilisation and anti-coking additive containing condensed cresol alkyl amine, a surfactant and a hydrogen donor compound. Optionally, the additive contains condensed sulphonic alkylphenyl acids. P...
|
|
WO/2008/064469A1 |
A method of recovering hydrocarbon or synthetic base oils from used oil-based drilling mud utilizes acid to deactivate emulsifiers in the drilling mud for altering the emulsion stability and permitting removal of the solids contained in ...
|
|
WO/2008/056250A2 |
A method for conversion of a subsea hydrocarbon production fluid from above a solids formation temperature to below the said temperature for further transport through a flowline (1) in the form of slurry. A partial volume of the producti...
|
|
WO/2008/024323A2 |
A high solvent power (HSP) crude oil is added to a blend of incompatible oils to proactively address the potential for fouling heat exchange equipment. The HSP component dissolves asphaltene precipitates before coking affects heat exchan...
|
|
WO/2007/082550A1 |
A method for washing the internals of a vessel for processing a heavy hydrocarbon stream, such as a paraffinic diluent recovery column (1) in a bitumen refining plant, comprises introducing a cleansing stream (3) comprising aromatic and/...
|
|
WO/2007/072005A1 |
The present invention provides a process for the treatment of crude oil or aged crude oil residue comprising the steps of (a) contacting the oil or residue with a phenol resin and with a diluent, to provide a diluted phenol resin treated...
|
|
WO/2007/021242A1 |
A composite material intended for components used in corrosive environments, wherein said material comprises a corrosion-resistant part (1) and a load-bearing part (2), wherein said parts (1, 2) are disposed adjacent one another, wherein...
|
|
WO/2007/008464A1 |
This invention relates to a process for selectively desulfurizing naphtha. More particularly, a low sulfur naphtha feed containing less than 500 wppm sulfur is hydrodesulfurized using a hydrodesulfurization catalyst and a hydrogen treat ...
|
|
WO/2006/097792A2 |
Embodiments of the present application are directed to methods and systems for treatment of ciude oil and/or oil products, as well as crude oil and oil products produced therefrom. In one embodiment, a method and system include injection...
|
|
WO/2006/076161A1 |
This invention relates to a method for making a carbon steel surface more resistant to fouling and corrosion by subjecting a cleaned carbon steel surface to heating in an oxygen-containing atmosphere followed by exposure of the heated su...
|
|
WO/2006/062761A1 |
A process for reducing the level of elemental sulfur and organic sulfur pickup by refined hydrocarbon streams such as gasoline, diesel, jet fuel, kerosene or fuel additives such as ethers or iso-octane that are transported through a pi...
|
|
WO/2006/032620A1 |
Use of N-alkyl-1, 3-diaminopropanes, or of a composition thereof as a dispersing agent to prevent the formation or remove already formed deposits of ammonium salt in hydrocarbon process plants, such as petrochemical or refinery plants.
|
|
WO/2005/118748A2 |
A method of dispersing, dissolving, or reducing the viscosity of hydrocarbon foulaπts including heavy oil, tars, asphaltenes, polynuclear aromatic hydrocarbons, coke, polymers, light oil, oxidized hydrocarbon and thermal decomposition p...
|
|
WO/2005/113726A1 |
The use of water-soluble aromatic polysulfonic acid salts for inhibiting fouling in process equipment used in the thermal treatment of heavy oils.
|
|
WO/2005/113727A2 |
A method for upgrading heavy oils by contacting the heavy oil with an inhibitor additive and then thermally treating the inhibitor additized heavy oil. The inhibitor is selected from polynuclear aromatic polysulfonic acid compounds or th...
|
|
WO/2005/113725A1 |
A method for upgrading heavy oils by contacting the heavy oil with an inhibitor additive and then thermally treating the inhibitor additized heavy oil. The inhibitor is selected from oil soluble polynuclear aromatic compounds. The invent...
|
|
WO/2005/111175A1 |
A process for thermal cracking of hydrocarbons in a pyrolysis furnace is disclosed. The improvement comprises inhibiting coke formation on the surface and/or coils of said pyrolysis furnace by adding to the hydrocarbon feed stock, from 1...
|
|
WO/2005/103208A1 |
The inventive method for controlling corrosion of the refinery metal walls produced by naphthenic acids consists in using alkyl polysulfide radical containing from 2 to 5 carbon atoms.
|
|
WO/2005/085396A1 |
The inventive method for corrosion control of metal walls of a refining unit by naphthenic acids consists in using tertiary mercaptan of general total formula CnH2n+1-SH, wherein n ranges from 8 to 14.
|
|
WO/2005/078050A1 |
The present invention provides an automatically decoking chemical equipment for the thermal cracking of hydrocarbons, such as waste plastics, rubber, paraffin, heavy oil and the mixture of them, which coking easily during hydrocarbon cra...
|
|
WO/2005/075698A1 |
A metal dusting resistant composition comprises an alloy capable of forming a thermally stable titanium carbide coating on its surface when exposed to a carbon supersaturated environment and, a protective coating on the alloy surface com...
|
|
WO/2005/040313A1 |
Naphthenic acid corrosivity of hydrocarbon feedstocks is correlated with the chemical composition of naphthenic acids, and especially with a ratio between an alpha fraction and a beta fraction of naphthenic acids. Contemplated plants, co...
|
|
WO/2005/026295A1 |
Amine and amine blend compositions neutralize acid environments in distillation overheads of hydrocarbon processing facilities. The neutralizers are composed of certain combinations of amines which are relatively stronger bases and more ...
|
|
WO/2005/021255A1 |
A composite tube having a corrosion resistant member and a load-bearing member is provided. The corrosion resistant member is a Cu-Al alloy and has a wall thickness of at least 0.5 mm, while the load-bearing member is a Fe, Ni or Co base...
|
|
WO/2005/021813A1 |
A copper-base alloy with increased melting point above 1000°C, which is resistant to carburization, metal dusting and coking, resistant to oxidation at elevated temperatures, said alloy having the composition in weight-%: A1 4-15, Si 0....
|
|
WO/2005/021814A1 |
A product is disclosed which is resistant or immune to carburization, metal dusting, coking, oxidation, and has sufficient mechanical strength for use at temperatures greater than 400°C. The product consist of a load-bearing member and ...
|
|
WO/2005/017231A1 |
The present invention provides an effective method of inhibiting corrosion on metallic surfaces in contact with a fluid contained in an industrial system, which includes adding to such fluid an effective corrosion controlling amount of a...
|
|
WO/2005/014758A1 |
The invention relates to a method for prevention of corrosion by naphthenic acids in a refinery, comprising the use of a compound of formula: HS-B-COOR (I), where B = a saturated bivalent 1-18 C hydrocarbon and R = H, alkaline or alkalin...
|
|
WO/2005/010126A1 |
Heavy fuel oils or residual fuel oils can be stabilized with magnesium overbased compounds such as magnesium overbased carboxylates. It was surprisingly discovered that adding magnesium overbased carboxylates to the residual fuel oils sh...
|
|
WO/2005/005487A1 |
In a petrochemical plant or polyolefin production plant, a specific nonionic surfactant is added to ingredients consisting mainly of hydrocarbons before the ingredients are introduced into a heat exchanger. Thus, the heat exchanger can b...
|
|
WO/2004/106468A1 |
Corrosive amine salts in hydrocarbon streams such as desalted crude oil streams can be prevented or avoided by adding certain amine scavenging chemicals to the streams. Suitable amine scavengers include, but are not necessarily limited t...
|
|
WO/2004/096953A2 |
The present invention provides a process to treat steels, preferably carbon steel to reduce the tendency of the steel to form coke when in contact with hydrocarbons at elevated temperatures. The steel may be first reduced then treated wi...
|
|
WO/2004/044266A1 |
The quaternary ammonium compound described by general formula 1 below[general formula 1] (wherein R?1¿, R?2¿ and R?3¿ are the same or different hydrocarbon radicals with 1 to 4 carbon atoms, and n is an integer between 1 and 10) is us...
|
|
WO/2004/026995A1 |
A method of inhibiting fouling and viscosity increase in hydrocarbon streams including ethylenically unsaturated monomers is disclosed. The method includes the step of adding to the hydrocarbon stream an effective amount of one or more q...
|
|
WO/2004/024850A1 |
The present invention provides a process for the production of a fuel composition having a NACE corrosion rating of between 0% and 25%, comprising the steps of: (i) contacting a fuel with a corrosion inhibitor of formula (I) to provide a...
|
|
WO/2004/013601A2 |
A method to quantify the conjugated dienes in a feedstream including the steps of derivatizing the dienes with MTAD by dissolving MTADin the feedstream, and determining the molar concentration of said conjugated dienes and/or the carbon ...
|
