Disclosed are methods and systems for removing a highly reactive polymer precursor such as carbonyls from a liquid hydrocarbon stream. Embodiments may disclose a method for removal of carbonyls from a liquid hydrocarbon stream comprising the steps of providing a liquid hydrocarbon stream containing carbonyls, providing a liquid bisulfite stream comprising an alkali metal bisulfite, and contacting the liquid hydrocarbon stream and the liquid bisulfite stream in a mass transfer device wherein at least a portion of the carbonyl reacts with the alkali metal bisulfite to form a solid adduct that is soluble in the bisulfite solution.

Disclosed are methods and systems for removing a highly reactive polymer precursor such as acetaldehyde and acetone from a hydrocarbon gas stream. Embodiments may disclose a method for removal of carbonyls comprising providing a hydrocarbon gas stream comprising a carbonyl, providing a liquid bisulfite stream, and contacting the hydrocarbon gas stream and liquid bisulfite stream in a mass transfer device wherein at least a portion of the carbonyl reacts with the bisulfite to form a solid adduct that is soluble in the liquid bisulfite stream.

Disclosed are methods and systems for removing a highly reactive polymer precursor such as acetaldehyde and acetone from a hydrocarbon gas stream. Embodiments may disclose a method for removal of carbonyls comprising providing a hydrocarbon gas stream comprising a carbonyl, providing a liquid bisulfite stream, and contacting the hydrocarbon gas stream and liquid bisulfite stream in a mass transfer device wherein at least a portion of the carbonyl reacts with the bisulfite to form a solid adduct that is soluble in the liquid bisulfite stream.

The present invention relates to a method for removal of an organic amine from a liquid hydrocarbon stream containing the amine, comprising: a) adding water to the hydrocarbon stream containing the amine, b) bubbling carbon dioxide through the hydrocarbon stream containing the amine, and c) separating a solid phase formed containing the amine from a liquid phase.

The present invention relates to a method for removal of an organic amine from a liquid hydrocarbon stream containing the amine, comprising: a) adding water to the hydrocarbon stream containing the amine, b) bubbling carbon dioxide through the hydrocarbon stream containing the amine, and c) separating a solid phase formed containing the amine from a liquid phase.

The present invention relates to a method for removal of an organic amine from a liquid hydrocarbon stream containing the amine, comprising: a) adding water to the hydrocarbon stream containing the amine, b) bubbling carbon dioxide through the hydrocarbon stream containing the amine, and c) separating a solid phase formed containing the amine from a liquid phase.