Larry Lee Simpson

US Patent:

48775878, Oct 31, 1989

Filed:

Dec 17, 1987

Appl. No.:

7/134512

Inventors:

Seung J. Rhee - South Somerville NJ
Larry L. Simpson - South Charleston WV

Assignee:

Union Carbide Chemicals and Plastics Company Inc. - Danbury CT

International Classification:

B01J 820
C08F 234

US Classification:

422135

Abstract:

A fluidized bed reactor and operating process is disclosed, the reactor including distributor plate means to provide distribution of fluid passing upwardly into a fluidized bed; a mixing chamber positioned below the distributor plate means; fluid entry means, preferably at the base of the reactor, for the passage of fluid into the reactor; flow deflector means associated with the entry means for providing at least an upwardly fluid flow path and an outward fluid flow path along the wall of the mixing chamber to inhibit the accumulation of solids and liquid in the mixing chamber.

US Patent:

49331493, Jun 12, 1990

Filed:

Sep 26, 1985

Appl. No.:

6/780273

Inventors:

Seung J. Rhee - South Somerville NJ
Larry L. Simpson - South Charleston WV

Assignee:

Union Carbide Chemicals and Plastics Company Inc. - Danbury CT

International Classification:

B01J 818

US Classification:

422131

Abstract:

A fluidized bed reactor and operating process is disclosed, the reactor including a distributor plate to provide distribution of fluid passing upwardly into a fluidized bed; a mixing chamber positioned below the distributor plate; fluid entry conduits, preferably at the base of the reactor, for the passage of fluid into the reactor; and a flow deflector associated with the entry conduit for providing at least an upwardly fluid flow path and an outward fluid flow path along the wall of the mixing chamber to inhibit the accumulation of solids and liquid in the mixing chamber.

US Patent:

63069814, Oct 23, 2001

Filed:

Apr 2, 1999

Appl. No.:

9/285514

Inventors:

Robert Cecil Brown - Danbury CT
Norman Louis Balmer - Ridgefield CT
Larry Lee Simpson - Hurricane WV

Assignee:

Union Carbide Chemicals & Plastics Technology Corporation - Danbury CT

International Classification:

C08F 234

US Classification:

526 68

Abstract:

A process for the manufacture of olefin polymers in a continuous gas phase polymerization reaction wherein monomer, after passage through the fluidized bed, is cooled to a temperature below its dew point to produce a mixture of cold gas and liquid. All or nearly all of the cold gas is introduced into the bottom of the reactor to serve as the fluidizing gas stream for the fluidized bed. Cold liquid, separated from the mixture, is either injected directly into the peripheral region around the fluidized bed or onto the walls of the expanded section of the reactor to form a liquid film flowing down the wall of the reactor or alternatively, the cold liquid is warmed to form a heated fluid by passing in indirect heat exchange relation with the fluidized bed and is then injected directly into the peripheral region of the fluidized bed or onto the wall of the expanded section of the reactor to form a downward flowing stream of cold liquid.