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Matches 151 - 200 out of 487

Document Document Title
WO/1999/043766A1
A method for upgrading an oil stream containing naphthenic acid and sulfur contaminants which comprises, adding an alkaline earth oxide to the oil stream to form a mixture wherein said alkaline earth oxide is added at an effective amount...  
WO/1999/043406A1
A process for pre-treating a spent caustic stream prior to oxidation which includes countercurrent multi-stage elevated temperature solvent extraction of dissolved organic material from the spent caustic using a solvent to yield a spent ...  
WO/1999/034895A1
An electrochemical process for the production of a hydroxide solution and a sulfate by the electrolysis of a waste aqueous mixture of oxidizable sulfur impurities in the anode compartment of at least one electrolytic cell while producing...  
WO1999019539A3
Corrosion in aqueous alkanolamine, physical solvents, or combination of alkanolamine and physical solvent solutions used to remove acid gases from natural gas, synthetic gas, or light hydrocarbon streams can be reduced by addition of mix...  
WO/1999/019539A2
Corrosion in aqueous alkanolamine, physical solvents, or combination of alkanolamine and physical solvent solutions used to remove acid gases from natural gas, synthetic gas, or light hydrocarbon streams can be reduced by addition of mix...  
WO/1999/013957A1
A method for inhibiting foam formation in a stripper of an amine unit is disclosed. The addition of non-foaming demulsifiers to the liquid, compressed hydrocarbon stream entering or the aqueous organic amine stream entering or exiting an...  
WO/1999/010444A1
The corrosion of metals in contact with aqueous alkanolamine solution in acid gas removal units is inhibited by maintaining in the alkanolamine solution a corrosion inhibiting amount of a compound having formula (I) where R is S or O, an...  
WO/1998/041727A1
A method is provided for reducing an amount of a waste component present in a hydrocarbon fluid produced from an earth formation via a wellbore formed in the earth formation, the hydrocarbon fluid flowing in a stream of fluid through the...  
WO/1998/037937A1
A process for pretreating a spent caustic stream (18) prior to oxidation includes countercurrent multi-stage elevated temperature solvent extraction of dissolved organic material from the spent caustic in a multi-stage countercurrent liq...  
WO/1998/028381A1
The present invention is directed to an aqueous amine resin corrosion inhibitor composition and methods of using the same for inhibiting corrosion in equipment in contact with alkanolamine, hot carbonate solutions, diglyme and/or other s...  
WO/1998/000478A1
A hydrocarbon stream containing sulfur and sulfur compounds (18) is contacted with a water suspension of dolomitic lime and dibasic acid catalyst (13) in a reaction vessel (10) in order to transfer the sulfur and sulfur compounds from th...  
WO/1997/046638A1
An improved process for the desulfurization of petroleum feeds utilizing sodium metal comprising contacting said petroleum feeds with staged addition of sodium metal at a temperature of at least about 250 �C in the presence of excess o...  
WO/1997/023583A1
Acidic halides, especially chlorides, are removed from dry gas and liquid hydrocarbon streams by contact with an adsorbent of porous, inert particles impregnated with alkaline material. Preferably at least some of the internal pore struc...  
WO/1997/008271A1
The invention relates to a process for treating acidic crudes or fractions thereof to reduce or eliminate their corrosivity by addition of suitable amounts of Group IA or Group IIA oxides, hydroxides, hydroxides hydrates or naphthenate s...  
WO/1997/008270A1
The invention relates to processes for treating acidic crudes or fractions thereof to reduce or eliminate their acidity and corrosivity by addition of suitable amounts of Group IA or Group IIA oxides, hydroxides and hydrates. The process...  
WO/1997/008275A1
The invention relates to a process for treating naphthenic acid containing whole crudes or fraction thereof to reduce or eliminate their acidity by contacting the acidic whole crude or fractions thereof at a suitable temperature typicall...  
WO/1996/037279A1
The present invention provides a number of agents that are useful to inhibit aldol condensation in caustic scrubbers. Preferred agents include, but are not necessarily limited to benzoic hydrazide, hydroperoxides, hydrogen peroxide, salt...  
WO/1996/035500A1
The present invention provides a number of inhibiting agents that are useful to reduce aldol condensation in diethanolamine scrubbers. Suitable inhibiting agents include: hydrogen peroxide; hydroperoxides; nitroalkanes; salts of hypochlo...  
WO/1996/020133A1
The present invention provides for a method of decreasing the metals content of metal containing petroleum streams by forming a mixture of the petroleum fraction containing those metals and an essentially aqueous electrolysis medium, and...  
WO/1996/003198A1
Process and apparatus for desulfurizing the gaseous product of the vacuum distillation of the heavy fraction of crude oil. The initial gaseous mixture (8) to be desulfurized is an incondensible gas that contains hydrogen sulfide. A gas-l...  
WO/1995/028993A1
A method of decomposing a halogenated aromatic compound with an alkaline substance safely without fail, which comprises bringing the aromatic compound into contact with the alkaline substance in an aprotic polar solvent at a temperature ...  
WO/1994/014922A1
Described is a method of working up tar, tar products, distillation residues, coking residues, oil residues and similar organic compounds consisting of aromatic and other hydrocarbons or containing them, the products being worked up bein...  
WO/1993/025636A1
The present invention concerns a process for desulfurization of hydrocarbon products, in particular oil and other liquid fuels. According to the invention a hydrocarbon feedstock is mixed with an alkaline aqueous solution or suspension i...  
WO/1993/025635A1
A method of removing halogenated aromatic compounds contained in small amounts in a hydrocarbon oil comprising mainly nonaromatic hydrocarbon oils safety without fail. The method comprises bringing the hydrocarbon oil into contact with a...  
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/1987/007904A1
Method of treating a first stream having mercaptan or mercaptan-based compounds therein by contacting said first stream with a second stream, wherein said mercaptan or mercaptan-based compounds are either extracted, catalytically oxidize...  
WO/1985/004894A1
An alkaline solution containing mercaptides is regenerated in an improved process wherein the alkaline solution to be regenerated containing a suitable oxidation catalyst is contacted with an oxygen-containing solvent which is inmiscible...  
WO/1985/003516A1
Said process for the desulphuration of fuel oils comprises the addition to washing water of a catalyst solution comprised of: 1.5-15.0 g of calcium hydroxide, 60.0 g of polyethylene glycol having a molecular weight comprised between at l...  
WO/1985/001955A1
The level of halogenated aromatics is reduced in a hydrocarbon stream by treatment with an alkaline reactant in a sulfoxide solvent.  
WO/1985/000826A1
A process for eliminating by destruction polychlorinated bi-phenyls from hydrocarbonaceous oil contaminated therewith. The oil is admixed with liquid sodium in an atmosphere of argon gas and allowed by refluxing, mixing, agitation, and h...  
JP2017527681A
大型貨物船の燃料に使用されるバンカー油か ら硫黄及び他の汚染物質を浄化するためのシ ステム及び方法について説明する。好ましく は、システムは、油及び水のエマルジョ...  
JP2017164708A
[Subject] The present invention provides an alkaline wastewater treatment method which can reduce concentration of PCB contained in alkaline waste water. [Means for Solution] The present invention is an alkaline wastewater treatment meth...  
JP6186005B2  
JP6162711B2  
JP2017119826A
[Subject] Offer of oil which corrosiveness acquired by neutralizing method of acid oil and the method reduced. [Means for Solution] (1) A neutralizing method of acid oil which has six alicyclic membered-rings [two] and in which the boili...  
JP6141439B2  
JP2016521303A5  
JP6080758B2  
JP6072790B2  
JP6062936B2  
JP6031204B1
[Subject] The present invention provides an alkaline wastewater treatment method which can reduce concentration of PCB contained in alkaline waste water. [Means for Solution] The present invention is an alkaline wastewater treatment meth...  
JP2016180057A
[Subject] The present invention fully decomposes phosphoric ester contained in waste oil, and provides a treatment-of-waste-oil method that phosphorus compounds can be extracted from an oil phase etc. [Means for Solution] The present inv...  
JP5980192B2  
JP2016521303A
How to promote weight measurement separation of alkali metal salt from alkaline metal reaction hydrocarbon, such as an alkaline metal sulfide and many sulfides. An indicated method is a part of method of upgrading hydrocarbon materials b...  
JP5925002B2  
JP2016507595A
In a process of processing a gas-like ingredient obtained by in situ recovery of liquid hydrocarbon from a nature ore deposit of hydrocarbon, mercaptan and hydrogen sulfide of each other are separated using Lean oil, hydrogen sulfide is ...  
JP5872709B2  
JP2016501288A
The corrosion of steel material, such as steel or stainless steel, poses a problem in piping of an oil pipeline, an oil storage tank, and oil-refining devices, or a processing device, and can reduce this corrosion by using the oil materi...  
JP5841229B2  
JP5838211B2  

Matches 151 - 200 out of 487