Removal of phenols from phenol-containing streams
AssigneeExxon Research & Engineering Co.
InventorsRichard H. Schlosberg, Charles G. Scouten
Life of this patent
Estimating the term…
Abstract
Process for removing phenols from phenol-containing streams such as coal liquids by contacting the stream with a multivalent metal composition selected from the group consisting of oxides and/or hydroxides of one or more multivalent metals capable of forming a hydroxy metal phenate with the phenols of the stream; separating the hydroxy metal phenate from the treated stream; and heating the hydroxy metal phenate to its decomposition temperature, thereby forming phenols and oxides of the multivalent metal.
Claims18
A process for removing phenols from a phenol-containing coal liquid and regenerating the phenols, the process comprising:
- (a) containing the coal liquid with a multivalent metal composition selected from the group consisting of oxides and/or hydroxides of one or more multivalent metals capable of forming a hydroxy metal phenate with the phenols of the stream, wherein said contacting is performed at temperatures lower than the decomposition temperature of the hydroxy metal phenate;
- (b) separating the hydroxy metal phenate from the treated stream;
- and
- (c) heating the hydroxy metal phenate to its decomposition temperature, thereby forming phenols and oxides of the multivalent metal.
A process for removing phenols from a phenol-containing hydrocarbonaceous stream and regenerating the phenols, the process comprising:
- (a) contacting the stream with a multivalent metal composition selected from the group consisting of oxides and/or hydroxides of one or more multivalent metals capable of forming a hydroxy metal phenate with the phenols of the stream, wherein said contacting is performed at temperatures lower than the decomposition temperature of the hydroxy metal phenate;
- (b) separating the hydroxy metal phenate from the treated stream;
- and
- (c) heating the hydroxy metal phenate to its decomposition temperature, thereby forming phenols and oxides of the multivalent metal.
Dependencies are inferred from the claim text.