US 12,031,096 B2
Reduced fouling of hydrocarbon oil
Guangzhe Yu, Minnetonka, MN (US); Xiomara Price, Minnetonka, MN (US); Roberto M. Gutierrez, Minnetonka, MN (US); Anthony Fields, Minnetonka, MN (US); Bryan Crom, Minnetonka, MN (US); Guoliang Wang, Shanghai (CN); Nimeshkumar Kantilal Patel, Minnetonka, MN (US); and Xiaoan Xie, Shanghai (CN)
Assigned to BL Technologies, Inc., Minnetonka, MN (US)
Filed by BL Technologies, Inc., Minnetonka, MN (US)
Filed on Apr. 6, 2021, as Appl. No. 17/223,691.
Application 17/223,691 is a division of application No. 16/326,413, granted, now 11,015,135, previously published as PCT/US2017/034703, filed on May 26, 2017.
Claims priority of provisional application 62/473,744, filed on Mar. 20, 2017.
Claims priority of provisional application 62/379,400, filed on Aug. 25, 2016.
Prior Publication US 2021/0222076 A1, Jul. 22, 2021
Int. Cl. C10G 75/04 (2006.01); C08L 79/00 (2006.01); C08L 79/02 (2006.01); C10G 9/12 (2006.01); C10G 75/02 (2006.01)
CPC C10G 75/04 (2013.01) [C10G 9/12 (2013.01); C10G 75/02 (2013.01); C08L 79/02 (2013.01); C10G 2300/205 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An antifoulant composition for inhibiting fouling on structural parts of a system exposed to a fluid hydrocarbon or petrochemical stream, said antifoulant composition comprising: (1) a polyamine and (2) a dispersant,
wherein said polyamine comprises
an alkylene polyamine, wherein the alkylene polyamine comprises a branched polyethylenimine or a polypropylenimine.