CPC C10G 29/24 (2013.01) [B01D 53/52 (2013.01); C10L 3/103 (2013.01); B01D 2257/304 (2013.01); B01D 2257/306 (2013.01); B01D 2258/012 (2013.01); B01D 2258/018 (2013.01); B01D 2258/05 (2013.01); C10G 2300/202 (2013.01); C10G 2300/207 (2013.01); C10L 2290/44 (2013.01); C10L 2290/545 (2013.01)] | 9 Claims |
1. A composition, comprising:
an aldehyde; and
at least one of an amine of formula (1) and an amine of formula (2):
wherein
R1 to R11 are each independently a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, provided that R1, R2, R7, and R8 may be connected to R3, R6, R9, and R11, respectively, to form an alkylene group having 2 to 6 carbon atoms;
a pKa value of the conjugate acid of the amine of formula (1) and the amine of formula (2) is 11.3 or higher in water at 25° C., and
the composition is suitable for removing a sulfur-containing compound selected from the group consisting of hydrogen sulfide and an —SH group-containing compound from at least one of a liquid and gas.
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