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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...
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WO/1998/018885A1 |
The additive described consists essentially of a selected oxalkylated fatty amine or fatty amine derivative and a special mineral salt compound, preferably a metal soap. Said additive for heavy oils produces good emulsification and dispe...
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WO/1998/016718A2 |
The invention concerns the use of secondary alkanesulphonic acids as asphaltene dispersants in crude oils and products derived therefrom, the chain being between 8 and 22 carbon atoms long.
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WO/1998/016595A1 |
The invention concerns crude oils and products derived therefrom containing as asphaltene dispersants sarcosinates of general formula (I), in which R�1? designates C�7?-C�21? alkyl or alkenyl, and R�2? designates H or C�1?-C�...
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WO/1997/045503A1 |
Corrosion of iron-containing metal surfaces in a hydrocarbon fluid having a temperature of from about 175 �C to about 400 �C and containing a corrosive amount of naphthenic acid is inhibited by adding to the fluid or to a feed theref...
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WO/1997/045507A1 |
Compounds of formula (I) where R1 is a C10-C32 alkenyl group and R2 and R3 are (-OCH2CH2-)nOH, (-OCH2CHCH3-)nOH or -OCH2CHOHCH2OH in which n is an integer from 1 to 10 are lubricity and corrosion-prevention additives for fuels.
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WO/1997/036970A2 |
Process for the preparation of an aqueous tar suspoemulsion by mixing a mixture comprising: (a) a viscous tar composition formed from a tar, from inorganic solids and, optionally, from water; (b) water (W); (c) a surface-active agent (SA...
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WO/1997/028235A1 |
A hydrocarbon conversion process wherein austenitic stainless steel portions that are subject to halide stress-corrosion cracking conditions, such as the colder portions of the process equipment including effluent coolers, knockout drums...
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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...
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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...
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WO/1994/015896A2 |
At least a portion of a hydrodealkylation reactor is treated with a carburization resistant composition, e.g. a film or coating applied to the base construction material; the reactor is operated under low sulfur conditions.
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JP2024501014A |
The present invention provides antifouling compositions, methods, etc. for suppressing contamination of structural parts in petroleum refining systems exposed to hydrocarbon fluids. An antifouling composition has been developed that adva...
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JP2023123051A |
To provide an operation restarting method for a thermal decomposition furnace that can extend a continuous operation period of the thermal decomposition furnace when the thermal decomposition furnace is restarted after decoking a thermal...
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JP2023518537A |
The present invention reduces prediction error, which corresponds to the sum of false predictions and lack of prediction, and allows better identification of operating parameters or characteristic values that may cause clogging. [Solutio...
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JP2023517731A |
A method of operating a hydroprocessing reactor and preventing corrosion of the hydroprocessing unit is provided. Hydroprocessing reactors contain surfaces that are exposed to corrosive compounds. In one aspect, a graphene-based coating ...
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JP7261323B2 |
The present disclosure relates to an antifoulant formulation comprising: (a) at least one ammonium salt of linear alkyl benzene sulphonic acid; (b) at least one aromatic hydrocarbon; (c) at least one diluent; (d) polyisobutylene succinic...
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JP7257652B2 |
To provide a feedstock oil composition for a fluidized catalytic cracking apparatus capable of sufficiently suppressing adhesion of dirt to a preheating heat exchanger.A feedstock oil composition for fluidized catalytic cracking apparatu...
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JP7252846B2 |
To provide a method for determining a mixing ratio of a raw oil in a simple and short time while suppressing occurrence of measurement error, and a device for determining the mixing ratio of the raw oil.The method for determining the mix...
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JP7250259B2 |
The invention relates to a process for removing red oils deposits formed in an installation comprising the use of a cleaning agent comprising one or more fatty acid esters to dissolve the red oils deposit and to form a mixture comprising...
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JP2023513408A |
A method for reducing or preventing corrosion or fouling in equipment for performing a chemical process, wherein the corrosion or fouling is caused by acidic compounds present in the chemical process, wherein the fourth A method of addin...
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JP2023036936A |
To provide methods for preventing or reducing polymer formation and polymer deposition in equipment used in petrochemical processes.A method of preventing or reducing fouling of process equipment used in an industrial process includes in...
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JP7216606B2 |
To provide a cleaning method capable of reducing adhesion of soil to a heat exchanger for preheating a crude oil during operation, and sufficiently and simply suppressing adhesion of soil to the heat exchanger for preheating a crude oil....
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JP2023503945A |
An anti-fouling composition that advantageously reduces fouling of structural components of petroleum refinery systems. This includes controlling solids build-up in equipment and lines used to produce and process crude oil. An anti-fouli...
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JP7213132B2 |
To provide a cleaning method capable of reducing adhesion of soil to a raw material oil heat exchanger of a vacuum distillation apparatus during operation, and sufficiently and simply suppressing adhesion of soil to the raw material oil ...
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JP7190634B2 |
The invention relates to a metal anchoring mesh intended to be secured to a metal wall of a chamber of a fluid catalytic cracking unit, in order to form cells (64). Said metal anchoring mesh comprises a plurality of wavy elementary parts...
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JP2022167091A |
To provide an agent supply method in a petroleum process that can efficiently prevent fouling and corrosion while suppressing corrosion in a subsequent facility in one aspect.A method for supplying a surfactant to a distillation facility...
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JP2022155384A |
To provide a method of accurately estimating the amount of sludge deposition when mixing crude oils, a device for implementing the same, system, computer, method of using the same, computer program for making the computer function as the...
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JP2022542885A |
To predict the future evolution of the health status of chemical manufacturing plant equipment and/or processing units, e.g. steam crackers, based on today's key performance indicators, today's processing conditions, and processing condi...
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JP2022148818A |
To provide a novel method capable of preventing fouling of a heat exchanger in a petroleum process.A fouling prevention method of a heat exchanger in a petroleum process includes addition of a thiophosphate compound and a dispersant to a...
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JP2022114455A |
To provide solutions to some of the technical problems associated with handling, storage, transportation and/or processing of a crude oil recovered from a crude oil well due to presence of asphaltenes in the crude oil.A method of improvi...
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JP7090631B2 |
An anti-coking surface having a thickness up to 15 microns comprising from 15 to 50 wt. % of MnCr2O4 (for example manganochromite); from 15 to 25 wt. % of Cr0.23Mn0.08Ni0.69 (for example chromium manganese nickel); from 10 to 30 wt. % of...
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JP7072560B2 |
Disclosed herein are methods for reducing fouling caused by process water present within a water recycling loop of a pyrolysis plant. Fouling is caused by phase separation and accumulation of materials from the process water on equipment...
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JP7068000B2 |
To provide a raw material oil composition for a fluid catalytic cracking apparatus capable of satisfactorily suppressing the adhesion of dirt to a preheating-system heat exchanger.A raw material oil composition for a fluid catalytic crac...
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JP2022067354A |
To provide an agent for preventing staining of a heat exchanger for pre-heating raw oil in a petroleum purification process, which can sufficiently prevent the deposition of stains on a heat exchanger for pre-heating raw oil, in order to...
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JP2022067630A |
To provide: an agent for preventing staining of a heat exchanger for pre-heating raw oil in a petroleum purification process, which can sufficiently prevent the deposition of stains on a heat exchanger for pre-heating raw oil, in order t...
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JP7056774B2 |
Provide is a distillation tower management system, a distillation tower state analysis method, and a distillation tower management method that are capable of predicting abnormality in distillation towers before the abnormality becomes ap...
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JP7036212B2 |
A composition comprising a) a quaternary trialkylalkanolamine hydroxide and b) at least one diamine as component b), which is selected from the group consisting of 1-amino-4-methylpiperazine, 1,2-diaminopropane and mixtures thereof.
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JP2021156568A |
To provide a cleaning method capable of sufficiently and easily suppressing deposition of dirt to a heat exchanger for heavy oil desulfurization devices by reducing the deposition of dirt to the heat exchanger for heavy oil desulfurizati...
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JP6933238B2 |
To provide a pressure difference eliminating method for eliminating, during operation, pressure loss (pressure difference) which occurs due to salts resulting from impurities in a raw material in distillation equipment, without adversely...
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JP2021046547A |
To improve anti-fouling performance during petroleum refinery operations of a petroleum feedstock which is heated at elevated temperatures during the refinery operation.Fouling in a refinery vessel, such as heat transfer equipment, used ...
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JP2020139130A |
To provide a method of reducing vapor below the lower explosive limit (LEL) for the disaggregation and subsequent removal of coke deposits on catalyst and for safe vessel entry into industrial equipment.A method of equipment decontaminat...
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JP2020114912A |
To provide an additive for reducing fouling and/or asphaltene bulky agglomeration (or cotton-like agglomeration) in a midstream process, transportation and upstream transportation of a hydrocarbon oil, especially a crude oil.The fouling ...
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JP6716674B2 |
A method of correcting measurements of a chemical sensor used in an industrial facility. The method involves correcting for errors known to occur in the steady state and the dynamic state for specifically recognized situations. This meth...
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JP6694456B2 |
To provide a more effective application method of a dirt preventing agent in a dirt prevention method for preventing surface contamination of a heat exchanger and a heating furnace, wherein the dirt prevention method comprises adding the...
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JP6677432B2 |
To provide a stain preventive and a stain prevention method which can prevent enough adherence of stains on surfaces of a heat exchanger and a heating furnace that oily fluid flows in a petroleum refinery process.In a petroleum refinery ...
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JP2020509126A |
Compositions and methods for preventing or reducing polymer formation and polymer deposition in equipment used in petrochemical processes are disclosed. The antifouling composition comprises one or more antioxidants, one or more antioxid...
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JP6670911B1 |
To provide a technique for preventing contamination of a heat exchanger and a heating furnace by dispersing suspended substances such as asphaltene and sludge which cause contamination while preventing corrosion in the heat exchanger and...
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JP6629130B2 |
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JPWO2018062254A1 |
Derived from a compound having an SH structure contained in a hydrocarbon having a step of adding at least one aldehyde selected from the group consisting of monoaldehydes having 4 or more carbon atoms and dialdehydes having 3 or more ca...
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JP6560267B2 |
Vapor and liquid flow concurrently down through a vertical vessel. A horizontal scale collection and predistribution tray is located in the vessel to remove solid contaminants and to redistribute the liquid to a fine distribution tray. T...
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