Title:
METHOD OF TREATING PYROLYSIS OIL FROM WASTE PLASTICS
Document Type and Number:
WIPO Patent Application WO/2023/200321
Kind Code:
A1
Abstract:
The present disclosure provides a method of treating waste plastic pyrolysis oil, the method including: a first step of washing waste plastic pyrolysis oil with water and then removing moisture; a second step of mixing the waste plastic pyrolysis oil from which the moisture is removed and a sulfur source to prepare a mixed oil; a third step of hydrotreating the mixed oil with hydrogen gas in the presence of a hydrotreating catalyst; a fourth step of separating the hydrotreated mixed oil into a liquid stream and a gas stream to obtain liquid pyrolysis oil; and a fifth step of recovering hydrogen gas from the separated gas stream and recycling the recovered hydrogen gas to the third step.
Inventors:
KIM YONGWOON (KR)
KWAK BYOUNGKYU (KR)
KOO JACHEOL (KR)
KIM DONGKEUN (KR)
PARK YOUNGSEO (KR)
PARK JOOWON (KR)
AHN BYUNGKOOK (KR)
LEE YUNHEE (KR)
JUNG JAEHEUM (KR)
KWAK BYOUNGKYU (KR)
KOO JACHEOL (KR)
KIM DONGKEUN (KR)
PARK YOUNGSEO (KR)
PARK JOOWON (KR)
AHN BYUNGKOOK (KR)
LEE YUNHEE (KR)
JUNG JAEHEUM (KR)
Application Number:
PCT/KR2023/095003
Publication Date:
October 19, 2023
Filing Date:
February 08, 2023
Export Citation:
Assignee:
SK INNOVATION CO LTD (KR)
SK GEO CENTRIC CO LTD (KR)
SK GEO CENTRIC CO LTD (KR)
International Classes:
C10G67/02; C10G1/00; C10G1/10; C10G7/00; C10G31/06; C10G31/08; C10G45/02
Domestic Patent References:
| WO2020239729A1 | 2020-12-03 | |||
| WO2021204819A1 | 2021-10-14 | |||
| WO2021110395A1 | 2021-06-10 |
Foreign References:
| EP3907267A1 | 2021-11-10 | |||
| CN113348227A | 2021-09-03 |
Attorney, Agent or Firm:
PLUS INTERNATIONAL IP LAW FIRM (KR)
Download PDF: