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1. 发明授权

US10617994B2 Amine based hydrogen sulfide scavenging additive compositions of copper salts, and medium comprising the same 有权
公开(公告)号：US10617994B2
公开(公告)日：2020-04-14
申请号：US16339272
申请日：2017-12-19
申请人： Dorf Ketal Chemicals (India) Private Limited
发明人： Mahesh Subramaniyam
IPC分类号： B01D53/14 , C10G29/06 , C10G29/20
CPC分类号： B01D53/1493 , B01D53/1468 , C10G29/06 , C10G29/20 , B01D2252/20431 , B01D2252/20489 , B01D2252/602 , C10G2300/207
摘要： The present invention relates to amine based hydrogen sulfide (H2S) scavenging additive compositions comprising A) an additive 1 comprising at least one compound selected from the group comprising copper compound, copper soap, and copper salts of organic acid; and B) at least one activator capable of enhancing hydrogen sulfide (H2S) scavenging efficiency of the additive 1, wherein the activator comprises aliphatic tertiary amine, or oxyalkylated derivate of aliphatic amine, or a mixture thereof. The present invention also relates to a process for scavenging hydrogen sulfide in hydrocarbons by employing the amine based hydrogen sulfide (H2S) scavenging additive composition of the present invention. The present invention also relates to a method of using the amine based hydrogen sulfide (H2S) scavenging additive composition of the present invention for scavenging hydrogen sulfide in hydrocarbons.

2. 发明授权

US10450246B2 Compositions for control and inhibition of polymerization of vinyl aromatic monomers, and methods of use thereof 有权
公开(公告)号：US10450246B2
公开(公告)日：2019-10-22
申请号：US15774466
申请日：2017-02-09
申请人： Dorf Ketal Chemicals (India) Private Limited
发明人： Mahesh Subramaniyam
IPC分类号： C09K3/00 , C07C7/20
摘要： The present invention relates to an improved amine based additive composition for control and inhibition of polymerization of aromatic vinyl monomers, particularly of styrene comprising one or more quinone methide compounds, one or more phenolic compounds and further comprising at least one aliphatic tertiary amine containing —OH group in the alkyl chain. In one embodiment, the present invention also relates to method of use of presently provided composition. In another embodiment, the present invention also relates to method of controlling and inhibiting polymerization of aromatic vinyl monomers, particularly of styrene by employing presently provided composition. In still another embodiment, the present invention also relates to method of preparation of presently provided composition.

3. 发明授权

US09777230B2 Effective novel non-polymeric and non-fouling additive for inhibiting high-temperature naphthenic acid corrosion and method of using the same 有权
公开(公告)号：US09777230B2
公开(公告)日：2017-10-03
申请号：US15244688
申请日：2016-08-23
申请人： Dorf Ketal Chemicals (India) Private Limited
发明人： Mahesh Subramaniyam
IPC分类号： C09K8/524 , C09K8/54 , C10G7/10 , C10G7/04 , C10G75/02 , B01D3/34 , C10G7/00 , C23F11/04
CPC分类号： C10G75/02 , B01D3/34 , C02F2303/08 , C09K8/524 , C09K8/54 , C10G7/00 , C10G7/10 , C10G2300/1033 , C10G2300/203 , C10G2300/4075 , C10G2300/80 , C23F11/04
摘要： 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, 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, 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.

4. 发明授权

US09334445B2 Amine based additive composition for control and inhibition of polymerization of styrene, and method of use thereof 有权
标题翻译：用于控制和抑制苯乙烯聚合的胺基添加剂组合物及其使用方法
公开(公告)号：US09334445B2
公开(公告)日：2016-05-10
申请号：US14361220
申请日：2012-11-16
申请人： Dorf Ketal Chemicals (India) Private Limited
发明人： Mahesh Subramaniyam
IPC分类号： C07C7/20 , C09K15/20 , C07B63/04
CPC分类号： C09K15/20 , C07B63/04 , C07C7/20 , C07C15/46
摘要： The present invention relates to amine based additive composition for controlling and inhibition of polymerization of aromatic vinyl monomers including styrene comprising (a) one or more of nitroxide (i.e. nitroxyl) compounds; and (b) one or more of aromatic nitro compounds, characterized in that the said composition further comprises one or more of (c) amines, wherein said amine is selected from a group comprising (i) hydroxyl alkyl tertiary amines, (ii) tertiary alkyl amines, (iii) hydroxyl alkyl primary amine; and (iv) mixture thereof. In one embodiment, the present invention also relates to method of using presently provided composition. In another embodiment, the present invention also relates to method of controlling and inhibiting polymerization of aromatic vinyl monomers including styrene by employing presently provided composition. In still another embodiment, the present invention also relates to method of preparation of presently provided composition.
摘要翻译：本发明涉及用于控制和抑制包括苯乙烯在内的芳族乙烯基单体的聚合的胺基添加剂组合物，其包含（a）一种或多种氮氧化物（即硝酰基）化合物; 和（b）一种或多种芳族硝基化合物，其特征在于所述组合物还包含一种或多种（c）胺，其中所述胺选自（i）羟基烷基叔胺，（ii）叔胺烷基胺，（iii）羟基烷基伯胺; 和（iv）其混合物。在一个实施方案中，本发明还涉及使用目前提供的组合物的方法。在另一个实施方案中，本发明还涉及通过使用目前提供的组合物来控制和抑制包括苯乙烯的芳族乙烯基单体聚合的方法。在另一个实施方案中，本发明还涉及制备目前提供的组合物的方法。

5. 发明授权

US08679324B2 Additive and method for removal of impurities formed due to sulfur compounds in crude oils containing calcium naphthenate 有权
标题翻译：用于除去含有环烷酸钙的原油中由于硫化合物形成的杂质的添加剂和方法
公开(公告)号：US08679324B2
公开(公告)日：2014-03-25
申请号：US13519831
申请日：2010-12-28
申请人： Mahesh Subramaniyam
发明人： Mahesh Subramaniyam
IPC分类号： C10G17/00
CPC分类号： C10G17/02 , B01D43/00 , C10G2300/205 , C10G2300/207 , C10G2300/80 , C10G2300/805 , E21B37/00 , E21B43/00
摘要： An additive capable of avoiding formation of impurities and capable of removing or dissolving impurities formed and accumulated at the interphase of organic and aqueous layers on reaction between calcium naphthenate and sulfur compound including H2S in presence of water in mixture of crude oils containing calcium naphthenate and sulfur compound or H2S, wherein the additive is glyoxylic acid is provided. A method for avoiding formation of impurities and for removing or dissolving impurities formed and accumulated at the interphase of organic and aqueous layers on reaction between calcium naphthenate and sulfur compound including H2S in presence of water in mixture of crude oils containing calcium naphthenate and sulfur compound including H2S, comprising treating mixture of crude oils containing calcium naphthenate and sulfur compound or H2S with glyoxylic acid is also provided.
摘要翻译：一种添加剂，其能够避免形成杂质，并且能够除去或溶解在含有环烷酸钙和硫的原油的混合物存在下，在环烷酸钙和包括H 2 S的硫化合物之间的反应中在有机层和水层的相间形成和积累的杂质化合物或H2S，其中添加剂是乙醛酸。一种用于在含有环烷酸钙和硫化合物的原油混合物中存在水的情况下，避免形成杂质并除去或溶解形成和积累在有机层和水层间的杂质的方法，所述杂质包括环烷酸钙和包括H 2 S在内的硫化合物之间的反应，所述原油包含 H2S还包括用乙醛酸处理含有环烷酸钙和硫化合物或H 2 S的原油的混合物。

6. 发明授权

US11617970B2 Demulsification additive composition, use thereof, and method of demulsification 有权
公开(公告)号：US11617970B2
公开(公告)日：2023-04-04
申请号：US17360879
申请日：2021-06-28
申请人： Dorf Ketal Chemicals (India) Private Limited
发明人： Mahesh Subramaniyam
IPC分类号： B01D17/04 , C10G31/08 , C10G33/04
摘要： The present invention relates to a demulsification additive composition for demulsification of water-in-oil emulsion caused due to wash water in the crude oil, wherein the composition comprises: (a) one or more demulsifiers (the component (a)); and (b) a compound selected from the group comprising glyoxal, neutralized glyoxal, glyoxal derivative and a mixture thereof (the component (b)), and (c) further comprises phosphoric acid (the component (c)). The present invention also relates to a method of using the present demulsification additive composition for demulsification of water-in-oil emulsion caused due to wash water in the crude oil.
The present invention also relates to a method for demulsification of water-in-oil emulsion caused due to wash water in the crude oil by employing the present demulsification additive composition.

7. 发明申请

US20210331088A1 Demulsification Additive Composition, Use Thereof, and Method of Demulsification 有权
公开(公告)号：US20210331088A1
公开(公告)日：2021-10-28
申请号：US17360879
申请日：2021-06-28
申请人： Dorf Ketal Chemicals (India) Private Limited
发明人： Mahesh SUBRAMANIYAM
IPC分类号： B01D17/04 , C10G31/08 , C10G33/04
摘要： The present invention relates to a demulsification additive composition for demulsification of water-in-oil emulsion caused due to wash water in the crude oil, wherein the composition comprises: (a) one or more demulsifiers (the component (a)); and (b) a compound selected from the group comprising glyoxal, neutralized glyoxal, glyoxal derivative and a mixture thereof (the component (b)), and (c) further comprises phosphoric acid (the component (c)). The present invention also relates to a method of using the present demulsification additive composition for demulsification of water-in-oil emulsion caused due to wash water in the crude oil.
The present invention also relates to a method for demulsification of water-in-oil emulsion caused due to wash water in the crude oil by employing the present demulsification additive composition.

8. 发明授权

US10711204B2 Nitrogen based hydrogen sulfide scavengers and method of use thereof 有权
公开(公告)号：US10711204B2
公开(公告)日：2020-07-14
申请号：US16068018
申请日：2016-12-23
申请人： Dorf Ketal Chemicals (India) Private Limited
发明人： Mahesh Subramaniyam
IPC分类号： B01D53/52 , C10G21/20 , C10G29/20 , C10L3/10 , C09K8/532 , C10L1/14 , C07C7/152 , C10G21/16 , C10G29/22 , C10L1/18 , C10L1/22 , C10L1/183 , C10L1/232 , C10L1/198 , C10L1/222 , C10L1/238 , C10L1/185
摘要： The present invention relates to a hydrogen sulphide scavenging additive composition for scavenging hydrogen sulphide including sulfur containing compounds and mercaptans, particularly for scavenging hydrogen sulfide in hydrocarbons, wherein the additive composition comprises substantially reduced amount of nitrogen based hydrogen sulfide scavengers, and is also required in substantially reduced amount, and wherein the additive composition scavenges the sulfur containing compounds not only at room temperature, but also at higher temperatures, and comprises at least a combination of: (A) at least one nitrogen based hydrogen sulfide scavenger; and (B) at least one aliphatic tertiary amine, wherein the nitrogen based hydrogen sulfide scavenger comprises triazine based hydrogen sulfide scavenger. In one embodiment, it also relates to a method for scavenging hydrogen sulfide in hydrocarbons, and in another embodiment it relates to a method of using an additive composition of the present invention for scavenging hydrogen sulfide in hydrocarbons. In yet another embodiment, it relates to a composition comprising (i) a hydrocarbon and (ii) a hydrogen sulfide scavenging additive composition for scavenging hydrogen sulfide in hydrocarbons.

9. 发明授权

US10493396B2 Hydrogen sulfide scavenging additive compositions, and medium comprising the same 有权
公开(公告)号：US10493396B2
公开(公告)日：2019-12-03
申请号：US15740734
申请日：2016-06-17
申请人： Dorf Ketal Chemicals (India) Private Limited
发明人： Mahesh Subramaniyam
IPC分类号： B01D53/02 , B01D53/14 , C10L3/10 , C10L1/10 , C10L1/14 , C10G29/00 , C08L95/00 , C08K3/24 , C08K5/09 , C08K5/098 , C08K5/17 , C10G29/06 , C10L1/188 , C10L1/222 , C10L1/12
CPC分类号： B01D53/1468 , C08K3/24 , C08K5/09 , C08K5/098 , C08K5/17 , C08L95/00 , C10G29/00 , C10G29/06 , C10L1/10 , C10L1/14 , C10L3/103 , B01D2252/2041 , B01D2252/20405 , B01D2256/24 , B01D2257/304 , C10G2300/207 , C10L1/1283 , C10L1/1881 , C10L1/2225 , C10L2200/0213 , C10L2200/043 , C10L2200/0423 , C10L2200/0438 , C10L2230/02 , C10L2290/545 , C10L2300/20 , C08K5/098 , C08L95/00 , C08K5/17 , C08L95/00
摘要： The present invention relates to a hydrogen sulfide scavenging additive composition, wherein the composition comprises:

a. an additive 1 comprising at least one compound selected from the group comprising zinc compound, zinc soap, and zinc salt of organic acid; and
b. at least one activator comprising one or more hydroxyl alkylated amine.

In one embodiment, the composition further comprises an additive 2 comprising polyphosphoric acid (PPA).
In one embodiment, the present invention also relates to a method of using the hydrogen sulfide scavenging additive compositions of the present invention for scavenging the hydrogen sulfide in the medium.
In one embodiment, the present invention also relates to a method of scavenging hydrogen sulphide in the medium by employing the hydrogen sulfide scavenging additive compositions of the present invention.
In one embodiment, the present invention also relates to a medium comprising hydrogen sulfide (H2S) scavenging additive compositions of the present invention.

10. 发明授权

US09725649B2 Amine and nitroxide based additive composition for control and inhibition of polymerization of styrene, and method of use thereof 有权
公开(公告)号：US09725649B2
公开(公告)日：2017-08-08
申请号：US14362047
申请日：2012-11-21
申请人： Dorf Ketal Chemicals (India) Private Limited
发明人： Mahesh Subramaniyam
IPC分类号： C07C7/20 , C09K15/20 , C08F2/40 , C08K5/17 , C08K5/32
CPC分类号： C09K15/20 , C07C7/20 , C08F2/40 , C08F2438/02 , C08K5/17 , C08K5/32 , C07C15/46 , C08F12/08
摘要： The present invention relates to additive composition for controlling and inhibition of polymerization of aromatic vinyl monomers including styrene comprising (a) one or more of nitroxide (i.e. nitroxyl) compounds, and characterized in that the said composition further comprises one or more of (b) aliphatic amines selected from a group comprising tertiary amines, secondary amines and primary amines. In one embodiment, the present invention also relates to method of use of presently provided composition. In another embodiment, the present invention also relates to method of controlling and inhibiting polymerization of aromatic vinyl monomers including styrene by employing presently provided composition. In still another embodiment, the present invention also relates to method of preparation of presently provided composition.

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