公开(公告)号：US20230288395A1

公开(公告)日：2023-09-14

申请号：US18175919

申请日：2023-02-28

申请人： ECOLAB USA INC.

发明人： Ashish DHAWAN ,  Carter M. SILVERNAIL ,  Emily Rebecca WOOD ,  Kameswara VYAKARANAM ,  Daniel Robert DREYER ,  Karina EURESTE

IPC分类号： G01N33/28 ,  G01N27/06

CPC分类号： G01N33/2805 ,  G01N33/2888 ,  G01N33/2847 ,  G01N27/06

摘要： The present disclosure relates to various testing methods that can be applied to oils, such as pyrolysis oils. Different testing methods can be used to determine the oxidative stability of an oil. The testing methods may also be used to differentiate between various oils and to determine the effectiveness of various antioxidants on the oxidative stability of an oil.

公开(公告)号：US20240301303A1

公开(公告)日：2024-09-12

申请号：US18663443

申请日：2024-05-14

申请人： ECOLAB USA Inc.

发明人： Kameswara VYAKARANAM ,  Karina EURESTE ,  Theodore ARNST

IPC分类号： C10G75/04

CPC分类号： C10G75/04 ,  C10G2300/1003 ,  C10G2300/201 ,  C10G2300/80

摘要： Disclosed are antifouling agents used in compositions and methods to reduce or prevent foulants in synthetic feedstocks derived from plastic. Also disclosed is pyrolysis process equipment treated with an antifouling agent. A method of reducing or preventing fouling in a plastic-derived synthetic feedstock composition may include adding an antifouling agent including a carboxylic acid anhydride or a copolymer of a dicarboxylic acid anhydride and alpha olefin to a synthetic feedstock composition derived from plastic pyrolysis containing a foulant to provide treated pyrolysate.

公开(公告)号：US20240010916A1

公开(公告)日：2024-01-11

申请号：US18348312

申请日：2023-07-06

申请人： Ecolab USA Inc.

发明人： Meng KONG ,  Kameswara VYAKARANAM

IPC分类号： C09K15/30

CPC分类号： C09K15/30

摘要： Polymerization inhibitor compositions are provided. The polymerization inhibitor compositions include at least a first inhibitor compound having a stable nitroxide radical or a derivative thereof, a second inhibitor compound having a phenothiazine or a derivative thereof, and a functional solvent. Methods of inhibiting the polymerization of monomers using the compositions of the disclosure are also provided. The methods of inhibiting polymerization of monomers include a step of adding a composition of the disclosure to the monomer. In some instances, the monomer is an ethylenically unsaturated monomer. Such ethylenically unsaturated monomers include, but are not limited to, (meth)acrylic acid, methyl methacrylate, acrylic acid, acrylic acid esters, methacrylamide sulfate, vinyl acetate, acrylonitrile, acrolein, acrylates, methacrylates, 1,3-butadiene, styrene, isoprene, and combinations thereof. Methods of preparing the polymerization inhibitors and compositions of the disclosure are also provided.

公开(公告)号：US20240010758A1

公开(公告)日：2024-01-11

申请号：US18348074

申请日：2023-07-06

申请人： Ecolab USA Inc.

发明人： Meng KONG ,  Kameswara VYAKARANAM

IPC分类号： C08F2/38 ,  C07D279/26 ,  C07D279/22 ,  C07D279/20

CPC分类号： C08F2/38 ,  C07D279/26 ,  C07D279/22 ,  C07D279/20

摘要： Polymerization inhibitor compositions are provided. The polymerization inhibitor compositions include at least a first inhibitor compound having a phenothiazine or a derivative thereof, a second inhibitor compound having a phenylenediamine or a derivative thereof, and a solvent. Methods of inhibiting the polymerization of monomers using the compositions of the disclosure are also provided. The methods of inhibiting polymerization of monomers include a step of adding a composition of the disclosure to the monomer. In some instances, the monomer is an ethylenically unsaturated monomer. Such ethylenically unsaturated monomers include, but are not limited to, (meth)acrylic acid, methyl methacrylate, acrylic acid, acrylic acid esters, methacrylamide sulfate, vinyl acetate, acrylonitrile, acrolein, acrylates, methacrylates, 1,3-butadiene, styrene, isoprene, and combinations thereof. Methods of preparing the polymerization inhibitors and compositions of the disclosure are also provided.

公开(公告)号：US20230120367A1

公开(公告)日：2023-04-20

申请号：US17964275

申请日：2022-10-12

申请人： ECOLAB USA Inc.

发明人： Kameswara VYAKARANAM ,  Karina EURESTE ,  Theodore C. ARNST

IPC分类号： C10G75/04

摘要： Disclosed are antifouling agents used in compositions and methods to reduce or prevent foulants in synthetic feedstocks derived from plastic. A method of reducing or preventing fouling in a plastic-derived synthetic feedstock composition may include adding an antifouling agent including a carboxylic acid anhydride or a copolymer of a dicarboxylic acid anhydride and alpha olefin to a synthetic feedstock composition derived from plastic pyrolysis containing a foulant to provide treated pyrolysate. The foulant may include, for example, nylon, polyvinyl chlorides, polyethylene terephthalate, polyamides, caprolactam, benzoic acid, phenol, p-cresol, dimethylphenol, isopropyl phenol, tert-butylphenol, dimethylethylphenol, napthalenol, varying lengths of alkenes and alkanes, propylene, tolune, pentene, butane, tetramethylindole, ethylbenzene, ethyldimethylpyrrole, dimethylfuran, tetrahydroquinoline, and any combination thereof.