Liquid purification or separation – Processes – Preventing – decreasing – or delaying precipitation,...
Patent
1998-08-19
2000-12-26
Barry, Chester T.
Liquid purification or separation
Processes
Preventing, decreasing, or delaying precipitation,...
585833, 585866, 585804, 210773, C02F 100
Patent
active
061653683
ABSTRACT:
A method for controlling the deposition of foulants such as polynuclear aromatic compounds on the internal surfaces of equipment in a processing train used to process a product stream obtained by dehydrogenating an aliphatic compound containing from 2 to 5 carbon atoms wherein there is introduced into the processing train an effective amount of a liquid solvent having at least one hydroxyl group and a minimum boiling point of about 64.7.degree. C., the solvent being passed through at least a portion of the processing train, after which it is removed from the processing train.
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Brochure: "Glycols for Anti-Freezes, Coupling Agents, Humectants, Liquid Coolants, Solvents, Resin Intermediates." Union Carbide. Admitted prior art.
Barry Chester T.
Bushman Browning
Valero Energy Corporation
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