METHOD TO RESOLVE EMULSIONS FORMED DURING ETHYLENE MANUFACTURE

摘要

Disclosed herein are methods for resolving emulsions formed from oils present in quench waters of ethylene manufacturing operations. The methods include adding a cationic oligomer to the base of a water quench tower having an emulsion formed therein, and collecting a water phase therefrom. The water phase can be applied to a water recycling loop within the manufacturing facility.

主权项

1. A method of resolving pygas emulsions, the method comprising: adding about 0.1 ppm to 200 ppm of a cationic oligomer to a pygas emulsion present within a water recycling loop of an ethylene manufacturing plant; and collecting a water phase resolved therefrom, wherein the cationic oligomer has a molecular weight of about 400 g/mol to 2000 g/mol and comprises repeat units derived from (2,3-epoxypropyl)trialkylammonium chloride).