Method Of And A Composition For Controlling Gas Hydrate Blockage Through The Addition Of A Synergistically Acting Blend With A Quaternary Benzyl Ammonium Compound
申请人:Clariant International, Ltd.
公开号:US20210179919A1
公开(公告)日:2021-06-17
The present disclosure relates to a gas hydrate inhibitor composition, comprising
A) a compound according to formula (1)
wherein
R1 is an alkyl group having from 1 to 5 carbon atoms;
R2 is hydrogen or an alkyl group having from 1 to 5 carbon atoms;
R3 is present or not as hydrogen and organic moieties having from 1 to 20 carbon atoms;
R4 is selected from —(CH
2
)
t
—, —[CH
2
—CHR
6
)
t
]—, —(CH
2
—CHR
6
O)
u
—(CH
2
)
t
— and combinations thereof;
R5 is an alkyl or alkenyl group having 4 to 22 carbon atoms;
R6 is hydrogen or an alkyl group having from 1 to 4 carbon atoms;
R7 is hydrogen or an alkyl group having from 1 to 4 carbon atoms;
R8 is present or not as hydrogen or organic moieties having from 1 to 20 carbon atoms;
t is 2, 3 or 4;
u is an integer between 0 and 100;
n is 0 or 1
m is 0 or 2
o is 0 or 2,
p is 0 or 1
X
−
is an anion,
and a synergistic cationic surfactant which is selected from quaternary benzyl ammonium salts having besides the benzyl group at least one C
8
-C
18
-alkyl group bound to the nitrogen atom.