Composition and process for removal of acid gases
AssigneeThe Dow Chemical Company
InventorPeter C. Rooney
Life of this patent
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Abstract
Alkanolamines of the formula R—NHCH2CH(OH)CH2CH3 (I) or mixtures thereof wherein R is H, —CH2CH(OH)CH2CH3, an alkyl group having from 1 to 6 carbon atoms, an aryl group having from 6 to 12 carbon atoms, an aralkyl group having from 6 to 12 carbon atoms, or a cycloalkyl group having from 3 to 6 carbon atoms in combination with a tertiary alkano/amine are effective in the removal of acidic gases from a fluid stream containing same and show superior degradation properties as compared to alkanolamines conventionally used in the gas purification applications.
Claims36
An aqueous solution adapted for use in the removal of acidic gases from a fluid stream containing same, said aqueous solution comprising an effective amount for removal of acid gases of an alkanolamine of the formula
- R—NHCH2CH(OH)CH2CH3 (I)
- or mixtures thereof wherein R is H, —CH2CH(OH)CH2CH3, an alkyl group having from 1 to 6 carbon atoms, an aryl group having from 6 to 12 carbon atoms, an aralkyl group having from 6 to 12 carbon atoms, or a cycloalkyl group having from 3 to 6 carbon atoms in combination with a tertiary alkanolamine.
A process for removing acidic gases from a fluid stream containing same, said process comprising contacting said fluid stream with an aqueous solution comprising an effective amount of an alkanolamine of the formula
- R—NHCH2CH(OH)CH2CH3 (I)
- or mixtures thereof wherein R is H, —CH2CH(OH)CH2CH3, an alkyl group having from 1 to 6 carbon atoms, an aryl group having from 6 to 12 carbon atoms, an aralkyl group having from 6 to 12 carbon atoms, or a cycloalkyl group having from 3 to 6 carbon atoms.
Dependencies are inferred from the claim text.