controle de processo de desgaseificação de polímero

resumo controle de processo de desgaseificação de polímero a presente invenção refere-se a um processo para operar um desgaseificador de polímero em pó de leito fixo vertical. Process for operating a vertical fixed bed degasser which is continuously fed with an active polymer powder produced by a ca...

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Bibliographische Detailangaben
Hauptverfasser:	JEAN-LOUIS CHAMAYOU, LUC GIRARDOT
Format:	Patent
Sprache:	por
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	resumo controle de processo de desgaseificação de polímero a presente invenção refere-se a um processo para operar um desgaseificador de polímero em pó de leito fixo vertical. Process for operating a vertical fixed bed degasser which is continuously fed with an active polymer powder produced by a catalytic olefin polymerization process in a polymerization reactor. The polymerization conditions in the degasser are such that there is produced an additional amount of polymer corresponding to between 0.001 and 0.015 times the amount which entered the degasser. The degassing process includes introducing into the degasser a stripping gas containing principal monomer, with the temperature inside the degasser being the polymerization reactor temperature plus or minus 20° C.