POLYOLEFIN DISCHARGE PROCESS AND APPARATUS

Disclosed is a polyolefin discharge cycle comprising discharging an amount of polyolefin granules from a reactor to a product chamber, wherein the reactor is operated at a pressure of at least 20 psia; transferring the granules from the product chamber to a product blow tank; displacing gas through...

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Bibliographische Detailangaben
Hauptverfasser:	SINGH, Diwaker, EHRMAN, Fred, D, PRASAD, Giyarpuram, N
Format:	Patent
Sprache:	eng ; fre ; ger
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 THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	Disclosed is a polyolefin discharge cycle comprising discharging an amount of polyolefin granules from a reactor to a product chamber, wherein the reactor is operated at a pressure of at least 20 psia; transferring the granules from the product chamber to a product blow tank; displacing gas through an equalization line from the product blow tank into the product chamber as granules are transferred from the product chamber to the product blow tank; removing granules from the product blow tank; and repeating the cycle of discharging, transferring, displacing and removing of granules; wherein the granules are transferred at a rate of at least 0.01 ton granules/second; and/or wherein the equalization line is purged with gas before or after at least one cycle; and/or wherein the product chamber comprises a content detector such as a nuclear density detector.