Patent Number: 6,168,702

Title: Chemical demulsifier for desalting heavy crude

Abstract: The chemical demulsifier formulation has the formula: ##STR1## wherein R.sub.1 is H or an alkoxide of from 5 to about 20 carbon atoms; x is an integer of from about 8 to about 22 when R.sub.1 is hydrogen and from about 2 to about 5 when R.sub.1 is alkoxide; R.sub.2 is independently selected from H, (CH.sub.2 CH.sub.2 O).sub.m H; R.sub.3 is independently selected from H, (CH.sub.2 CH.sub.2 O).sub.n H, and (CH.sub.2 CH(CH.sub.3)O).sub.n H; m and n are integers from 1 to 50; and y and z are integers ranging from 2 to 10.

Inventors: Varadaraj; Ramesh (Flemington, NJ), Savage; David W. (Lebanon, NJ), Brons; Cornelius H. (Washington, NJ)

Assignee: Exxon Research and Engineering Company

International Classification: C10G 33/00 (20060101); C10G 33/04 (20060101); B01D 017/06 (); B01D 017/05 ()

Expiration Date: 01/02/2018