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公开(公告)号：US12128353B2
公开(公告)日：2024-10-29
申请号：US16631380
申请日：2018-07-24
Applicant: Dow Global Technologies LLC
Inventor： Christophe R. Laroche , John R. Dowdle , Eric J. Klinker
CPC classification number: B01D53/28 , B01D53/263 , C10L3/106 , B01D2252/2025 , B01D2252/50 , B01D2252/606 , C10L2290/08 , C10L2290/541
Abstract: The present invention relates to a dehydration composition and method of use thereof for drying gas streams, in particular natural gas streams, wherein the dehydration composition comprises a (a) glycol and (b) an additive selected so as to increase the viscosity, surface tension, and/or specific gravity of the dehydration composition. Said dehydration composition and method results in the reduction of solvent loss during the dehydration step in a gas dehydration unit.
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公开(公告)号：US20140345458A1
公开(公告)日：2014-11-27
申请号：US14345341
申请日：2012-09-20
Applicant: DOW Global Technologies LLC
Inventor： Eric J. Klinker
IPC: B01D53/14
CPC classification number: B01D53/1425 , B01D53/007 , B01D53/1456 , B01D53/1462 , B01D53/1475 , B01D53/1481 , B01D53/1493 , B01D2252/204 , B01D2259/804 , B01J19/123
Abstract: The present invention provides strategies for reducing the nitrosamine content of amine compositions that are contaminated with one or more nitrosamines. The present invention is based apart upon the appreciation that irradiating contaminated amine compositions with a suitable fluence of electromagnetic energy, such as ultraviolet energy, is able to selectively decompose the nitrosamine content relative to the amine content. This allows the amine content of the treated compositions to be preserved. As a consequence, the principles of the present invention are particularly useful for regenerating amine absorbents. Reducing the nitrosamine content so easily also facilitates disposal, further processing, or other desired handling of amine compositions.
Abstract translation: 本发明提供了降低被一种或多种亚硝胺污染的胺组合物的亚硝胺含量的策略。 本发明基于以下理解：基于照射具有适当的电能的能量的受污染胺组合物（例如紫外线能量）能够相对于胺含量选择性地分解亚硝胺含量。 这样可以保留处理过的组合物的胺含量。 因此，本发明的原理对于再生胺吸收剂是特别有用的。 减少亚硝胺含量容易地也有利于胺组合物的处理，进一步加工或其它所需的处理。
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Patent Agency Ranking
公开(公告)号：US20200164306A1
公开(公告)日：2020-05-28
申请号：US16631380
申请日：2018-07-24
Applicant: Dow Global Technologies LLC
Inventor： Christophe R. Laroche , John R. Dowdle , Eric J. Klinker
Abstract: The present invention relates to a dehydration composition and method of use thereof for drying gas streams, in particular natural gas streams, wherein the dehydration composition comprises a (a) glycol and (b) an additive selected so as to increase the viscosity, surface tension, and/or specific gravity of the dehydration composition. Said dehydration composition and method results in the reduction of solvent loss during the dehydration step in a gas dehydration unit.
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公开(公告)号：US20190118136A1
公开(公告)日：2019-04-25
申请号：US16096092
申请日：2017-04-20
Applicant: Dow Global Technologies LLC
Inventor： Christophe Laroche , Eric J. Klinker , Sara B. Klamo , Angela I. Padilla-Acevedo , Ashwin R. Bharadwaj , Stephen W. King , Edward D. Daugs , Brian A. Jazdzewski
Abstract: The present invention relates to a dehydration composition and method of use thereof for drying gas streams, in particular natural gas streams, wherein the dehydration composition comprises (i) a glycol, (ii) an imidazole compound, and optionally (iii) one or more of an alkali metal carboxylate, an additional glycol different than (i), an alkanolamine, a phosphate acid, a salt of a phosphate acid, a borate acid, a salt of a borate acid, a sweetening agent, a low temperature viscosity improver, a corrosion inhibitor, an antifoaming agent, or mixtures thereof.
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公开(公告)号：US11123688B2
公开(公告)日：2021-09-21
申请号：US16096092
申请日：2017-04-20
Applicant: Dow Global Technologies LLC
Inventor： Christophe R. Laroche , Eric J. Klinker , Sara B. Klamo , Angela I. Padilla-Acevedo , Ashwin R. Bharadwaj , Stephen W. King , Edward D. Daugs , Brian A. Jazdzewski
Abstract: The present invention relates to a dehydration composition and method of use thereof for drying gas streams, in particular natural gas streams, wherein the dehydration composition comprises (i) a glycol, (ii) an imidazole compound, and optionally (iii) one or more of an alkali metal carboxylate, an additional glycol different than (i), an alkanolamine, a phosphate acid, a salt of a phosphate acid, a borate acid, a salt of a borate acid, a sweetening agent, a low temperature viscosity improver, a corrosion inhibitor, an antifoaming agent, or mixtures thereof.
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公开(公告)号：US20180280868A1
公开(公告)日：2018-10-04
申请号：US15761831
申请日：2016-10-03
Applicant: Dow Global Technologies LLC
Inventor： Christophe Laroche , Armin Hassanzadeh , Eric J. Klinker
Abstract: The present invention relates to a dehydration composition and method of use thereof for drying gas streams, in particular natural gas streams, wherein the dehydration composition comprises (i) a glycol, (ii) a borate compound, (iii) an alkali metal carboxylate, and (iv) an additional glycol different than (i), and/or (v) an additional additive selected from an alkanolamine, a phosphate acid or salt compound, a sweetening agent, a low temperature viscosity improver, a corrosion inhibitor, an antifoaming agent, or mixtures thereof.
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公开(公告)号：US20170183587A1
公开(公告)日：2017-06-29
申请号：US15313721
申请日：2015-06-11
Applicant: Dow Global Technologies LLC
Inventor： Christophe R. Laroche , Eric J. Klinker
CPC classification number: C10L3/106 , B01D53/263 , B01D53/28 , B01D2252/202 , B01D2252/2023 , C07C43/11 , C08G65/2609 , C08G65/34 , C08G2650/54 , C10L3/10
Abstract: The present invention relates to a dehydration composition and method of use thereof for drying gas streams, in particular natural gas streams, wherein the dehydration composition comprises one or more polyhydric alcohol. Said polyhydric alcohol preferably has a hydroxyl content equal to or greater than 31 percent and equal to or less than 75 percent of the formula weight of the compound. Said polyhydric alcohol dehydration compositions are particularly suitable for dewatering and desalting gas stream comprising water and one or more salt.
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