公开(公告)号：US12031097B2

公开(公告)日：2024-07-09

申请号：US17964275

申请日：2022-10-12

Applicant: ECOLAB USA Inc.

Inventor： Kameswara Vyakaranam ,  Karina Eureste ,  Theodore C. Arnst

IPC: C10G75/04

CPC classification number: C10G75/04 ,  C10G2300/1003 ,  C10G2300/201 ,  C10G2300/80

Abstract: 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.

公开(公告)号：US20220315841A1

公开(公告)日：2022-10-06

申请号：US17708642

申请日：2022-03-30

Applicant: ECOLAB USA INC.

Inventor： Theodore C. Arnst ,  Karina Eureste ,  Kameswara Vyakaranam ,  Tannon S. Woodson ,  John N. Scholz

IPC: C10G1/00 ,  B01D11/02 ,  C10G1/02

Abstract: Disclosed are extraction solvents used in compositions and methods to refine synthetic feedstocks derived from plastic. Methods of refining plastic-derived synthetic feedstocks are also provided. For example, a method of refining a plastic-derived synthetic feedstock composition may include adding an extraction solvent to a synthetic feedstock composition derived from plastic pyrolyis to provide an extract phase and a raffinate phase, wherein the extraction solvent includes a polar organic extraction solvent immiscible in the synthetic feedstock. The methods may also include separating the raffinate phase from the extract phase to obtain a refined synthetic feedstock.

公开(公告)号：US20220081634A1

公开(公告)日：2022-03-17

申请号：US17471784

申请日：2021-09-10

Applicant: Ecolab USA Inc.

Inventor： Theodore C. Arnst ,  Karina Eureste ,  Tannon Shane Woodson

IPC: C10L10/16 ,  C10L1/14 ,  C10L1/195 ,  C10L1/196

Abstract: Disclosed are pour point depressants used in compositions and methods for achieving the cold flow properties of synthetic feedstock derived from plastic.