US 11,814,590 B2
Method of producing lubricating base oil from atmospheric residue in pyrolysis oil derived from waste plastic
Hee Jung Jeon, Daejeon (KR); Seung Woo Lee, Daejeon (KR); Yoon Kyung Lee, Daejeon (KR); Ho Won Lee, Daejeon (KR); Yeon Ho Kim, Daejeon (KR); Ka Young Kim, Daejeon (KR); Ok Youn Kim, Daejeon (KR); and Young Moo Park, Daejeon (KR)
Assigned to SK Innovation Co., Ltd., Seoul (KR); and SK Geo Centric Co., Ltd., Seoul (KR)
Filed by SK Innovation Co., Ltd., Seoul (KR); and SK Geo Centric Co., Ltd., Seoul (KR)
Filed on Aug. 26, 2022, as Appl. No. 17/896,136.
Claims priority of application No. 10-2021-0113728 (KR), filed on Aug. 27, 2021.
Prior Publication US 2023/0083199 A1, Mar. 16, 2023
Int. Cl. C10G 45/60 (2006.01)
CPC C10G 45/60 (2013.01) [C10G 2300/1003 (2013.01); C10G 2300/301 (2013.01); C10G 2300/302 (2013.01); C10G 2300/304 (2013.01); C10G 2400/10 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method of producing a lubricating base oil composition, the method comprising:
a) reacting at least a part of waste plastic pyrolysis oil having a boiling point in a range higher than 340° C. with a solid acid material to remove impurities and structurally isomerize the oil; and
b) hydroisomerizing at least a part of the product of process a) wherein the process a) of removing impurities and structurally isomerizing satisfies the following Relation 1:
5<A-B<30  [Relation 1]
wherein A and B are pour points of the waste plastic pyrolysis oil before structural isomerization (A) and after structural isomerization (B), respectively.