B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
23/379, 402/625
B01J 3/02 (2006.01) B01J 8/00 (2006.01) B01J 8/24 (2006.01) C08F 2/34 (2006.01)
Patent
CA 1240447
ABSTRACT OF THE DISCLOSURE Device and process for introducing a powder with catalytic activity into a fluidised-bed polymerisation reactor Device and process for introducing a powder with catalytic activity into a fluidised bed polymerisation reactor (1), the said device comprising: - a storage enclosure (2) for powder with catalytic activity, provided with a feed line (3) for powder with catalytic activity and a shut-off valve (26), this enclosure being connected to a metering device (4) making it possible to deliver periodically a given volume of powder with catalytic activity, - an intermediate chamber (5), placed below the metering device to receive direct the powder delivered by the latter, this intermediate chamber comprising in its upper part a tube (6) bringing in an inert carrier gas, provided with a shut-off valve, - piping for conveying the powder (8) connecting the bottom part of the intermediate chamber to the fluidised-bed reactor, this piping having a portion which is more or less horizontal, the said powder conveying piping being provided with a full-bore rapid-opening valve (10).
477905
Dumain Andre
Raufast Charles
Bp Chemicals Limited
Fetherstonhaugh & Co.
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