Patent ID: 11945999
Assignee: TOTAL MARKETING SERVICES
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A composition for scavenging hydrogen sulphide and mercaptans from hydrocarbon streams, said composition comprising at least an oxazolidine compound and at least an additive comprising at least one reaction product of a poly(C2-20-carboxylic acid) having at least one tertiary amino group with secondary amines, wherein the composition comprises from 50 to 99% wt of oxazolidine compound(s) and from 1 to 50% wt of said additive(s), based on the total weight of the composition,
wherein the oxazolidine compound is a bisoxazolidine compound,
wherein the oxazolidine compound has a structure of formula (I):, , wherein
n is an integer ranging from 1 to 6;
R1 and R2, identical or different, are selected from a hydrogen atom and a linear, branched or cyclic alkyl or alkenyl groups having from 1 to 6 carbon atoms, and wherein the additive is an amide, an amidoammonium salt or ammonium salt, or a mixture thereof, of aminoalkanecarboxylic acids of formulae (II) or (III):, , where
X is a radical of 1 to 19 carbon atoms, and
Y is a straight-chain or branched alkylene of 2 to 6 carbon atoms.