09139784 is referenced by 1 patents and cites 7 patents.

In the solution polymerization of ethylene co and homopolymers the solution leaving the reactor is heated to separate polymer from solvent and residual monomers. Fouling in the heat exchanger may be reduced by adding to the solution from 0.01 to 100 ppm by weight of a polyoxyalkylene compound of the formula HO—(CH2CH2O)M[CH2CH(CH3)O]N(CH2CH2O)PH wherein M, N and P each represent the average number of repeating units and M is from 0 to 20, N is from 2 to 50 and P is from 0 to 20 and passing the solution through a heat exchanger to increase its temperature by at least 20° C.

Title
Reducing fouling in heat exchangers
Application Number
13/313234
Publication Number
9139784 (B2)
Application Date
December 7, 2011
Publication Date
September 22, 2015
Inventor
Eric Cheluget
Calgary
CA
Fazle Sibtain
Calgary
CA
Philippa Hocking
Calgary
CA
Agent
Julie L Heinrich
Assignee
NOVA Chemicals
CH
IPC
C08F 10/02
F28F 19/00
C10G 75/04
C08F 6/12
F23L 15/04
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