Invention Grant
US07575669B2 Method of removal of carbonyl compounds along with acid gases from cracked gas in ethylene process 有权
在乙烯工艺中从裂解气中除去羰基化合物与酸性气体的方法

Method of removal of carbonyl compounds along with acid gases from cracked gas in ethylene process
Abstract:
A method for mitigating fouling in a wash unit used in a hydrocarbon cracking process wherein the fouling is due to the presence of polymers and deposits thereof formed by condensation of carbonyl compounds contained within a feed stream of the wash unit. In one embodiment, the invention provides a method of mitigating fouling in a wash unit by introducing into the feed stream an effective amount of an additive including: an inorganic salt of dithionite; and an epsilon caprolactam or a 6-amino caproic acid derivable therefrom. The additive scavenges the carbonyl compounds contained within the feed stream and dissolves deposits of the polymers to thereby mitigate fouling in the wash unit.
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