Organic disulfide based corrosion inhibitors

摘要

Disclosed are corrosion inhibitor compounds and compositions useful in applications relating to the production, transportation, storage, and separation of crude oil and natural gas. Also disclosed are methods of using the compounds and compositions as corrosion inhibitors, particularly in applications relating to the production, transportation, storage, and separation of crude oil and natural gas.

主权项

1. A method of inhibiting corrosion at a surface, the method comprising contacting the surface with a composition comprising a compound of formula (I), wherein, R1 and R2 are each independently selected from the group consisting of alkyl, alkenyl, alkynyl, aryl, heteroaryl, heterocycle, and cycloalkyl, wherein said alkyl, alkenyl, alkynyl, aryl, heteroaryl, heterocycle, and cycloalkyl are each independently substituted or unsubstituted with one or more suitable substituents, wherein the suitable substituent is selected from halo, perfluoroalkyl, perfluoroalkoxy, alkyl, alkenyl, alkynyl, hydroxy, oxo, mercapto, alkylthio, alkoxy, aryl, heteroaryl, aryloxy, heteroaryloxy, aralkyl, heteroaralkyl, aralkoxy, heteroaralkoxy, HO—(C═O)—, cycloalkyl, amino, alkylamino, dialkylamino, carbamoyl, alkylcarbonyl, alkoxycarbonyl, alkylaminocarbonyl, dialkylamino carbonyl, arylcarbonyl, aryloxycarbonyl, alkylsulfonyl, and arylsulfonyl; with the proviso that the following compounds and their acid addition salts are excluded: cystine; cystamine; disulfides of 1-amino-2-methyl-2-thiopropane, 1-amino-3-thiopropane, 1-amino-4-thiobutane, 2-amino-3-methyl-1-thiobutane, 2-amino-1-thiohexane, 2-amino-3,3-dimethyl-1-thiobutane, 1-amino-2-thiopropane, 2-amino-3-methyl-3-thiobutanecarboxylic acid (penicillamine), 2-amino-3-thiobutanecarboxylic acid (homocysteine), 2-amino-2-methyl-1-thiopropane, 1-amino-2-thiohexane, 2-amino-1-thiohexadecane, 2-amino-3-thioadipic acid, 2-amino-3-thio-3-phenylpropanecarboxylic acid, 1-amino-2-thio-1,2-diphenylethane, and 2-(2-amino-1-thioethyl)-naphthalene; diethyl disulfide; di-n-propyl disulfide; diisopropyl disulfide; di-n-butyl disulfide; di-sec-butyl disulfide; diisobutyl disulfide; di-tert-butyl disulfide; di-n-pentyl disulfide; di-neopentyl disulfide; di-n-hexyl disulfide; di-n-heptyl disulfide; di-n-octyl disulfide; di-n-nonyl disulfide; di-n-decyl disulfide; di-n-dodecyl disulfide; di-n-tridecyl disulfide; di-n-tetradecyl disulfide; di-n-pentadecyl disulfide; di-n-hexadecyl disulfide; di-n-heptadecyl disulfide; di-n-octadecyl disulfide; di-n-decyl disulfide; diundecyl disulfide; didodecyl disulfide; dihexadecyl disulfide; diallyl disulfide; dibenzyl disulfide; 2-naphthyl disulfide; and dithienyl disulfide.