Patent ID: 6051631
Filing Date: 2000-04-18
Classification: C08F

Abstract:
A process to remove undesirable compounds from fluid streams in polymerization processes, said process comprising:(1) transporting a First Stream from a First Source Zone through a First Stream Zone and to either a Second Stream Zone, or a Third Stream Zone;wherein said First Stream comprises at least one monomer and undesirable compounds;(2) transporting said First Stream from said First Stream Zone through said Second Stream Zone and to a First Treating Zone, or transporting said First Stream foam said First Stream Zone through said Third Stream Zone and to a Second Treating Zone;wherein said First Treating Zone comprises a vessel containing materials to remove undesirable compounds;wherein said Second Treating Zone comprises a vessel containing materials to remove undesirable compounds;(3) contacting said First Stream in said First Treating Zone with said materials to remove undesirable compounds to produce a Second Stream having a decreased amount of undesirable compounds as compared to said First Stream, or contacting said First Stean in said Second Treating Zone with said materials to remove undesirable compounds to produce said Second Stream having a decreased amount of undesirable compounds as compared to said First Stream;(4) transporting said Second Stream from either said First Treating Zone, or said Second Treating Zone, through a Fourth Stream Zone and to a First Collecting Zone;wherein said First Collecting Zone comprises a collection system for said Second Stream;(5) transporting a Third Stream from a Second Source Zone through a Fifth Stream Zone and to a First Mixing Zone;wherein said Third Stream comprises at least one diluent and undesirable compounds;(6) transporting a Fourth Stream from a Third Source Zone through a Sixth Stream Zone and to said First Mixing Zone;wherein said Fourth Stream comprises at least one comonomer having from 2 to about 20 carbon atoms per molecule;(7) mixing said Third Stream and said Fourth Stream in said First Mixing Zone to produce a Fifth Stream;(8) transporting said Fifth Stream from said First Mixing Zone through a Seventh Stream Zone and to either an Eighth Stream Zone, or a Ninth Stream Zone;(9) transporting said Fifth Stream from said Seventh Stream Zone through said Eighth Stream Zone and to a Third Treating Zone, or transporting said Fifth Stream from said Seventh Stream Zone through said Ninth Stream Zone and to said Second Treating Zone;wherein said Third Treating Zone comprises a vessel containing materials to remove undesirable compounds;(10) contacting said Fifth Stream in said Third Treating Zone with said materials to remove undesirable compounds to produce a Sixth Stream having a decreased amount of undesirable compounds as compared to said Fifth Stream, or contacting said Fifth Stream in said Second Treating Zone with materials to remove undesirable compounds to produce said Sixth Stream having a decreased amount of undesirable compounds as compared to said Fifth Stream; and(11) transporting said Sixth Stream from said Second Treating Zone, or said Third Treating Zone, through a Tenth Stream Zone and to said First Collecting Zone;wherein said First Collecting Zone comprises a collection system for said Sixth Stream.