Method of removing metals from hydrocarbon feedstock using esters of carboxylic acids, and additives for the same, are provided, wherein hydrocarbon stream including crude oil containing metals and salts thereof, wherein metal is calcium and its salt is calcium naphthenate, is mixed with an effective metal-removing-amount of an aqueous extraction-solution of non-precipitating and non-fouling additive comprising a chemical compound selected from a group consisting of methyl or ethyl or propyl or isopropyl mono- and/or di-esters of any one of the carboxylic acids selected from the groups consisting of maleic acid, maleic anhydride, and fumaric acid, or an appropriate combination of said esters, or an appropriate combination of any of said esters with any of said carboxylic acids to form a hydrocarbonous phase and an aqueous phase containing the metal ions; and separating aqueous phase.
C10G 21/16 - Composés organiques uniquement contenant de l'oxygène
C10G 17/00 - Raffinage des huiles d'hydrocarbures, en l'absence d'hydrogène, avec des acides, des composés libérant un acide ou des liquides contenant un acide, p. ex. avec une boue acide
C10G 17/04 - Traitement liquide-liquide formant deux phases non miscibles
C10G 29/22 - Composés organiques ne renfermant pas d'atomes métalliques contenant de l'oxygène comme seul hétéro-atome
C10G 31/08 - Raffinage des huiles d'hydrocarbures, en l'absence d'hydrogène, par des méthodes non prévues ailleurs par traitement à l'eau
C10G 21/00 - Raffinage des huiles d'hydrocarbures, en l'absence d'hydrogène, par extraction au moyen de solvants sélectifs
2.
Method of scavenging hydrogen sulfide from hydrocarbon stream
The invention is related to hydrogen sulfide scavenging additive, capable of scavenging hydrogen sulfide in hydrocarbons by forming water soluble scavenged products which are capable of getting separated from hydrocarbon even at acidic pH without causing fouling and decomposition problems, consisting of aldehyde or aldehyde and polyethylene glycol [PEG], and wherein said aldehyde is glyoxylic acid. The invention is also related to a method of scavenging hydrogen sulfide employing present scavenging additive.
C10G 17/02 - Raffinage des huiles d'hydrocarbures, en l'absence d'hydrogène, avec des acides, des composés libérant un acide ou des liquides contenant un acide, p. ex. avec une boue acide avec des acides ou des liquides contenant un acide, p. ex. avec une boue acide
3.
Additive for inhibiting acid corrosion and method of using the new additive
The present invention relates to the field of corrosion inhibition in hydrocarbon fluid processing units. The present invention comprises a new additive for inhibiting acid corrosion comprising polymeric thiophosphate ester, which is obtained by reaction of a polymer compound having mono, di or poly hydroxyl group, preferably polymer compound which is hydroxyl-termination, more preferably said polymer compound comprising hydroxyl-terminated polyisobutylene or polybutene and phosphorous pentasulphide. Said polymeric thiophosphate ester is further reacted with any oxide selected from group consisting of ethylene oxide, butylenes oxide or propylene oxide or such other oxide, preferably ethylene oxide, capably forming ethylene oxide derivative of thiophosphate ester. The invention is useful effecting acid corrosion inhibition on the metal surfaces of a distillation unit, distillation column, trays, packing and pump around piping.
C08F 279/00 - Composés macromoléculaires obtenus par polymérisation de monomères sur des polymères de monomères contenant plusieurs liaisons doubles carbone-carbone tels que définis dans le groupe
C10G 75/02 - Inhibition de la corrosion ou des salissures dans des appareils de traitement ou de conversion des huiles d'hydrocarbures, en général par addition d'inhibiteurs de corrosion
C10L 1/26 - Composés organiques contenant du phosphore
C10L 10/04 - Utilisation d'additifs à des fins particulières dans les combustibles ou les feux pour réduire la corrosion ou l'encrassage
4.
Additive for naphthenic acid corrosion inhibition and method of using the same
The present invention relates to the field of processing hydrocarbons which causes corrosion in the metal surfaces of processing units. The invention addresses the technical problem of high temperature naphthenic acid corrosion and sulphur corrosion and provides a solution to inhibit these types of corrosion. The three combination compositions are formed by two mixtures separately, with one mixture obtained by mixing compound A, which is obtained by reacting high reactive polyisobutylene (HRPIB) with phosphorous pentasulphide in presence of catalytic amount of sulphur with compound B which is thiophosphorous compound such as phosphorous thioacid ester of Formula (1) and second mixture obtained by mixing compound A with compound C of Formula (2) which is obtained by reacting compound B with ethylene oxide, wherein each of these two mixtures independently provide high corrosion inhibition efficiency in case of high temperature naphthenic acid corrosion inhibition and sulphur corrosion inhibition. The invention is useful in all hydrocarbon processing units, such as, refineries, distillation columns and other petrochemical industries.
C10G 75/02 - Inhibition de la corrosion ou des salissures dans des appareils de traitement ou de conversion des huiles d'hydrocarbures, en général par addition d'inhibiteurs de corrosion
C10L 1/26 - Composés organiques contenant du phosphore
C10L 10/04 - Utilisation d'additifs à des fins particulières dans les combustibles ou les feux pour réduire la corrosion ou l'encrassage
C10M 137/14 - Compositions lubrifiantes caractérisées en ce que l'additif est un composé organique non macromoléculaire contenant du phosphore comportant une liaison phosphore-carbone contenant du soufre
The present invention relates to inhibition of high temperature naphthenic acid corrosion occurring in hydrocarbon processing units. The invention provides an effective novel non - polymeric and non - fouling additive for inhibiting high - temperature naphthenic acid corrosion, comprising an effective corrosion - inhibiting amount of a second phosphate ester wherein said second phosphate ester is obtained by reacting a first phosphate ester with an oxirane compound selected from the group consisting of butylene oxide, ethylene oxide, propylene oxide or any other oxirane compound or a combination thereof, preferably with butylene oxide, capably yielding said second phosphate ester, having a structure A or B, Formulae (A) and (B) wherein R1 and R2 are each independently selected from the group consisting of moieties having 1 to 20 carbon atoms and R1 and R2 may be identical or different, X is H, CH3 or C2H5; and n may vary from 1 to 20, wherein said first phosphate ester is having a structure I or II, Formulae (I) and (II) wherein R1 and R2 are each independently selected from the group consisting of moieties having 1 to 20 carbon atoms and R1 and R2 may be identical or different, said first phosphate ester being obtained as a reaction product of reaction of an alcohol with a phosphorous pentaoxide.
C10G 7/10 - Moyens pour empêcher la corrosion pendant la distillation
C02F 5/14 - Traitement de l'eau avec des produits chimiques complexants ou des agents solubilisants pour l'adoucissement, la prévention ou l'élimination de l'entartrage, p. ex. par addition d'agents séquestrants en utilisant des substances organiques contenant du phosphore
C10L 1/26 - Composés organiques contenant du phosphore
C10L 1/04 - Combustibles carbonés liquides à base essentielle de mélanges d'hydrocarbures
The present invention relates to the field of processing hydrocarbons which causes corrosion in the metal surfaces of processing units. The invention addresses the technical problem of high temperature naphthenic acid corrosion and sulphur corrosion and provides a solution to inhibit these types of corrosion. The composition formed by reacting high reactive polyisobutylene (HRPIB) with phosphorous pentasulphide in presence of catalytic amount of sulphur provides high corrosion inhibition efficiency in case of high temperature naphthenic acid corrosion inhibition and sulphur corrosion inhibition. The invention is useful in all hydrocarbon processing units, such as, refineries, distillation columns and other petrochemical industries.
C10G 75/02 - Inhibition de la corrosion ou des salissures dans des appareils de traitement ou de conversion des huiles d'hydrocarbures, en général par addition d'inhibiteurs de corrosion
C07F 9/04 - Produits de réaction de composés de soufre et de phosphore avec des hydrocarbures
7.
Naphthenic acid corrosion inhibition using new synergetic combination of phosphorus compounds
The present invention relates to the field of processing hydrocarbons which causes corrosion in the metal surfaces of processing units. The invention addresses the technical problem of high temperature naphthenic acid corrosion and sulphur corrosion and provides a solution to inhibit these types of corrosion. The three combination compositions are formed by three mixtures separately, with one mixture obtained by mixing compound A, which is obtained by reacting high reactive polyisobutylene (HRPIB) with phosphorous pentasulphide in presence of catalytic amount of sulphur with compound B such as trialkyl phosphate and second mixture obtained by mixing compound A with compound C such as phosphite like di-isodecyl phenyl phosphite, and third mixture obtained by mixing compound A with compound D such as a phosphonate, wherein each of these three mixtures independently provide high corrosion inhibition efficiency in case of high temperature naphthenic acid corrosion inhibition and sulphur corrosion inhibition. The invention is useful in all hydrocarbon processing units, such as, refineries, distillation columns and other petrochemical industries.
C10G 7/10 - Moyens pour empêcher la corrosion pendant la distillation
B01D 3/34 - Distillation ou procédés d'échange apparentés dans lesquels des liquides sont en contact avec des milieux gazeux, p. ex. extraction avec une ou plusieurs substances auxiliaires
C23F 11/10 - Inhibition de la corrosion de matériaux métalliques par application d'inhibiteurs sur la surface menacée par la corrosion ou par addition d'inhibiteurs à l'agent corrosif dans d'autres liquides au moyen d'inhibiteurs organiques
C10G 75/02 - Inhibition de la corrosion ou des salissures dans des appareils de traitement ou de conversion des huiles d'hydrocarbures, en général par addition d'inhibiteurs de corrosion
C09K 8/54 - Compositions pour inhiber in situ la corrosion dans les puits ou les trous de forage
8.
A NEW ADDITIVE FOR INHIBITING ACID CORROSION AND METHOD OF USING THE NEW ADDITIVE
The present invention relates to the field of corrosion inhibition in hydrocarbon fluid processing units. The present invention comprises a new additive for inhibiting acid corrosion comprising polymeric thiophosphate ester, which is obtained by reaction of a polymer compound having mono, di or poly hydroxyl group, preferably polymer compound which is hydroxyl - termination, more preferably said polymer compound comprising hydroxyl - terminated polyisobutylene or polybutene and phosphorous pentasulphide. Said polymeric thiophosphate ester is further reacted with any oxide selected from group consisting of ethylene oxide, butylenes oxide or propylene oxide or such other oxide, preferably ethylene oxide, capably forming ethylene oxide derivative of thiophosphate ester. The invention is useful effecting acid corrosion inhibition on the metal surfaces of a distillation unit, distillation column, trays, packing and pump around piping.
C10L 1/26 - Composés organiques contenant du phosphore
C10G 75/02 - Inhibition de la corrosion ou des salissures dans des appareils de traitement ou de conversion des huiles d'hydrocarbures, en général par addition d'inhibiteurs de corrosion
C10L 10/04 - Utilisation d'additifs à des fins particulières dans les combustibles ou les feux pour réduire la corrosion ou l'encrassage
9.
AN EFFECTIVE NOVEL POLYMERIC ADDITIVE FOR INHIBITING NAPTHENIC ACID CORROSION AND METHOD OF USING THE SAME
The present invention relates to the field of inhibition of metal corrosion in hot acidic hydrocarbons, wherein acidity is derived from presence of naphthenic acid. More particularly, it relates to a polymeric additive for inhibiting high temperature napthenic acid corrosion, wherein said polymeric additive is polymeric phosphate ester of polyisobutylene succinate ester or oxide derivative of polymeric phosphate ester of polyisobutylene succinate ester. A polymeric phosphate ester of polyisobutylene succinate ester which is capable of acting as naphthenic acid corrosion inhibitor by inhibiting naphthenic acid corrosion in crude oil/feedstock/hydrocarbon streams containing naphthenic acid, and demonstrating higher thermal stability at elevated temperature varying from about 200°C to about 400°C [about 400°F to about 750°F] is disclosed
Method of removing metals from hydrocarbon feedstock using esters of carboxylic acids, and additives for the same, are provided, wherein hydrocarbon stream including crude oil containing metals and salts thereof, wherein metal is calcium and its salt is calcium naphthenate, is mixed with an effective metal-removing-amount of an aqueous extraction-solution of non-precipitating and non-fouling additive comprising a chemical compound selected from a group consisting of methyl or ethyl or propyl or isopropyl mono- and/or di-esters of any one of the carboxylic acids selected from the groups consisting of maleic acid, maleic anhydride, and fumaric acid, or an appropriate combination of said esters, or an appropriate combination of any of said esters with any of said carboxylic acids to form a hydrocarbonous phase and an aqueous phase containing the metal ions; and separating aqueous phase.
C10G 17/02 - Raffinage des huiles d'hydrocarbures, en l'absence d'hydrogène, avec des acides, des composés libérant un acide ou des liquides contenant un acide, p. ex. avec une boue acide avec des acides ou des liquides contenant un acide, p. ex. avec une boue acide
11.
METHOD OF REMOVING METALS FROM HYDROCARBON FEEDSTOCK USING ESTERS OF CARBOXYLIC ACIDS
Method of removing metals from hydrocarbon feedstock using esters of carboxylic acids, and additives for the same, are provided, wherein hydrocarbon stream such as crude oil containing metals and slats thereof, such as calcium and calcium naphthenate, is mixed with an effective metal - removing - amount of an aqueous extraction - solution of non - precipitating and non - fouling additive comprising a chemical compound selected from a group consisting of methyl or ethyl or propyl or isopropyl mono - and / or di-esters of any of three carboxylic acids, such as, maleic acid, maleic anhydride, or fumaric acid or an appropriate combination of said esters, or an appropriate combination of any of said esters with any of said three acids, enabling formation of a hydrocarbonous phase and an aqueous phase containing the metal ions; and separating aqueous phase.
C07C 67/08 - Préparation d'esters d'acides carboxyliques par réaction d'acides carboxyliques ou d'anhydrides symétriques avec le groupe hydroxyle ou O-métal de composés organiques
C10G 21/16 - Composés organiques uniquement contenant de l'oxygène
C10G 29/22 - Composés organiques ne renfermant pas d'atomes métalliques contenant de l'oxygène comme seul hétéro-atome
C10G 17/04 - Traitement liquide-liquide formant deux phases non miscibles
12.
A PROCESS FOR THE PREPARATION OF 5-CHLORO-2(2,4-DICHLOROPHENOXY) ANILINE
A novel process for the selective reduction of halonitroarenes in general and halonitroaromatic arenes in particular, without the hydrogenolysis of the C-Cl (where, X represents F-, Cl-, Br- and I) and the C-O-C bonds, in the presence of platinum based catalysts and ammonium formate. The invention makes the use of duel function of ammonium formate, as a hydrogen source for partial reduction (catalytic transfer hydrogenation) and as an additive controlling the hydrogenolysis side reactions during the completion of the reduction by high pressure catalytic hydrogenation using external hydrogen gas source. Uniqueness of the invention lies in the fact that either the catalytic transfer hydrogenation with ammonium formal e or high pressure catalytic hydrogenation in the absence of ammonium formate, when used alone result in lower purity of the said amine. This invention -product is used to synthesize intermediates for making antibacterial compounds.
C07C 213/02 - Préparation de composés contenant des groupes amino et hydroxy, amino et hydroxy éthérifiés ou amino et hydroxy estérifiés liés au même squelette carboné par des réactions impliquant la formation de groupes amino à partir de composés contenant des groupes hydroxy ou des groupes hydroxy éthérifiés ou estérifiés
C07C 217/90 - Composés contenant des groupes amino et hydroxy éthérifiés liés au même squelette carboné ayant des groupes amino et des groupes hydroxy éthérifiés liés à des atomes de carbone de cycles aromatiques à six chaînons du même squelette carboné ayant des groupes amino et des groupes hydroxy éthérifiés liés à des atomes de carbone de cycles aromatiques à six chaînons non condensés du même cycle aromatique à six chaînons non condensé l'atome d'oxygène d'au moins un des groupes hydroxy éthérifiés étant lié de plus à un atome de carbone d'un cycle aromatique à six chaînons, p. ex. éthers aminodiphényliques
13.
A NOVEL ADDITIVE FOR NAPHTHENIC ACID CORROSION INHIBITION AND METHOD OF USING THE SAME
The present invention relates to the field of processing hydrocarbons which causes corrosion in the metal surfaces of processing units. The invention addresses the technical problem of high temperature naphthenic acid corrosion and sulphur corrosion and provides a solution to inhibit these types of corrosion. The three combination compositions are formed by two mixtures separately, with one mixture obtained by mixing compound A, which is obtained by reacting high reactive polyisobutylene (HRPIB) with phosphorous pentasulphide in presence of catalytic amount of sulphur with compound B which is thiophosphorous compound such as phosphorous thioacid ester of Formula (1) and second mixture obtained by mixing compound A with compound C of Formula (2) which is obtained by reacting compound B with ethylene oxide, wherein each of these two mixtures independently provide high corrosion inhibition efficiency in case of high temperature naphthenic acid corrosion inhibition and sulphur corrosion inhibition. The invention is useful in all hydrocarbon processing units, such as, refineries, distillation columns and other petrochemical industries.
The present invention relates to the field of processing hydrocarbons which causes corrosion in the metal surfaces of processing units. The invention addresses the technical problem of high temperature naphthenic acid corrosion and sulphur corrosion and provides a solution to inhibit these types of corrosion. The three combination compositions are formed by three mixtures separately, with one mixture obtained by mixing compound A, which is obtained by reacting high reactive polyisobutylene (HRPIB) with phosphorous pentasulphide in presence of catalytic amount of sulphur with compound B such as trialkyl phosphate and second mixture obtained by mixing compound A with compound C such as phosphite like di - isodccyl phenyl phosphite, and third mixture obtained by mixing compound A with compound D such as a phosphonate, wherein each of these three mixtures independently provide high corrosion inhibition efficiency in case of high temperature naphthenic acid corrosion inhibition and sulphur corrosion inhibition. The invention is useful in all hydrocarbon processing units, such as, refineries, distillation columns and other petrochemical industries.
C09K 15/32 - Compositions anti-oxydantesCompositions inhibant les modifications chimiques contenant des composés organiques contenant du bore, du silicium, du phosphore, du sélénium, du tellure ou un métal
15.
HIGH TEMPERATURE NAPHTHENIC ACID CORROSION INHIBITION USING ORGANOPHOSPHOROUS SULPHUR COMPOUNDS AND COMBINATIONS THEREOF
The present invention relates to the field of processing hydrocarbons which causes corrosion in the metal surfaces of processing units. The invention addresses the technical problem of high temperature naphthenic acid corrosion and sulphur corrosion and provides a solution to inhibit these types of corrosion. The composition formed by reacting high reactive polyisobutylene (HRPIB) with phosphorous pentasulphide in presence of catalytic amount of sulphur provides high corrosion inhibition efficiency in case of high temperature naphthenic acid corrosion inhibition and sulphur corrosion inhibition. The invention is useful in all hydrocarbon processing units, such as, refineries, distillation columns and other petrochemical industries.
C10G 51/06 - Traitement des huiles d'hydrocarbures, en l'absence d'hydrogène, uniquement par plusieurs procédés de craquage uniquement par plusieurs étapes en parallèle
16.
METHOD OF REMOVAL OF CALCIUM FROM HYDROCARBON FEEDSTOCK
The invention relates to field of processing hydrocarbon feedstock including crude oil, wherein metals such as calcium are removed. In the face of the rising prices of crude oil, refiners are forced to process opportunity crudes such as DOBA, which pose many problems including fouling of equipment due to certain metallic salts, such as calcium napthenate. Calcium, which cannot be removed from crude oil during normal desalting process, poses very serious problems. The invention provides method for removal of calcium, wherein crude oil is mixed, with effective metal removing amount of aqueous extraction solution of an additive comprising a chemical compound selected from a group consisiting of metallic acid, maleic anhydride or fumaric acid or salts or derivatives thereof, enabling separation of hydrocarboneous phase and aqueous phase containing metal ions, in crude desalter. Only hydrocarboneous phase devoid of calcium is processed further, thereby preventing fouling of equipment.
C10G 17/02 - Raffinage des huiles d'hydrocarbures, en l'absence d'hydrogène, avec des acides, des composés libérant un acide ou des liquides contenant un acide, p. ex. avec une boue acide avec des acides ou des liquides contenant un acide, p. ex. avec une boue acide
17.
AN EFFECTIVE NOVEL NON - POLYMERIC AND NON - FOULING ADDITIVE FOR INHIBITING HIGH - TEMPERATURE NAPHTHENIC ACID CORROSION AND METHOD OF USING THE SAME
The present invention relates to inhibition of high temperature naphthenic acid corrosion occurring in hydrocarbon processing units. The invention provides an effective novel non - polymeric and non - fouling additive for inhibiting high - tem-perature naphthenic acid corrosion, comprising an effective corrosion - inhibiting amount of a second phosphate ester wherein said second phosphate ester is obtained by reacting a first phosphate ester with an oxirane compound selected from the group con-sisting of butylene oxide, ethylene oxide, propylene oxide or any other oxirane compound or a combination thereof, preferably with butylene oxide, capably yielding said second phosphate ester, having a structure A or B, Formulae (A) and (B) wherein R1 and R2 are each independently selected from the group consisting of moieties having 1 to 20 carbon atoms and R1 and R2 may be identical or different, X is H, CH3 or C2H5; and n may vary from 1 to 20, wherein said first phosphate ester is having a structure I or II, Formulae (I) and (II) wherein R1 and R2 are each independently selected from the group consisting of moieties having 1 to 20 carbon atoms and R1 and R2 may be identical or different, said first phosphate ester being obtained as a reaction product of re-action of an alcohol with a phosphorous pentaoxide.
The present invention relates to the field of processing hydrocarbons which causes corrosion in the metal surfaces of processing units. The invention addresses the technical problem of high temperature naphthenic acid corrosion and sulphur corrosion and provides a solution to inhibit these types of corrosion. The composition formed by reacting high reactive polyisobutylene (HRPIB) with phosphorous pentasulphide in presence of catalytic amount of sulphur provides high corrosion inhibition efficiency in case of high temperature naphthenic acid corrosion inhibition and sulphur corrosion inhibition. The invention is useful in all hydrocarbon processing units, such as, refineries, distillation columns and other petrochemical industries.
C10G 75/02 - Inhibition de la corrosion ou des salissures dans des appareils de traitement ou de conversion des huiles d'hydrocarbures, en général par addition d'inhibiteurs de corrosion
Method of removing metals from hydrocarbon feedstock using esters of carboxylic acids, and additives for the same, are provided, wherein hydrocarbon stream such as crude oil containing metals and salts thereof, such as calcium and calcium naphthenate, is mixed with an effective metal - removing - amount of an aqueous extraction - solution of non - precipitating and non - fouling additive comprising a chemical compound selected from a group consisting of methyl or ethyl or propyl or isopropyl mono - and / or di- esters of any of three carboxylic acids, such as, maleic acid, maleic anhydride, or fumaric acid or an appropriate combination of said esters, or an appropriate combination of any of said esters with any of said three acids, enabling formation of a hydrocarbonous phase and an aqueous phase containing the metal ions; and separating aqueous phase.
C07C 67/08 - Préparation d'esters d'acides carboxyliques par réaction d'acides carboxyliques ou d'anhydrides symétriques avec le groupe hydroxyle ou O-métal de composés organiques
brevets
