Acid gas and carbonyl removal in a stream of a chemical processing plant
AssigneeEcolab USA Inc.
InventorsSatheesh Kumar SAMBANDAM, David DIXON, Stewart PRESNALL, Jesse MELLO, Keith NAGY
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Abstract
The present disclosure provides methods, compounds, and compositions for treating industrial streams. A method of treating a stream may include adding a scavenger to the stream and adding an amine to the stream. The stream may include an acid gas and/or a carbonyl-containing compound. The scavenger may include, for example, sodium borohydride, hydroxylamine sulfate, acetaldehyde oxime, sodium cyanoborohydride, or any combination thereof. The amine may include, for example, ethylene diamine, ethyl ethanolamine, diethyl monoethanolamine, or any combination thereof.
Claims20
A method of treating a stream, comprising:
- adding a scavenger to the stream, and
- adding an amine to the stream.
A method of inhibiting formation of an aldol polymer, comprising:
- adding a scavenger to a stream comprising a carbonyl-containing compound,
- adding an amine to the stream, and
- reacting the carbonyl-containing compound with the scavenger and/or the amine, thereby preventing formation of the aldol polymer, wherein the scavenger and the amine are added to the stream at a weight ratio of about 1:1.
A method of scavenging an acid gas, comprising:
- adding a scavenger to a stream comprising the acid gas,
- adding an amine to the stream, and
- reacting the acid gas with the amine and/or the scavenger, thereby scavenging the acid gas, wherein the scavenger and the amine are added to the stream at a weight ratio of about ⅓ scavenger to about ⅔ amine.
Dependencies are inferred from the claim text.