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US 6,114,475 AGranted
Reactor drying by addition of compound that lowers boiling point of water
AssigneeUnion Carbide Chemicals & Plastics Technology Corporation
InventorsMark Gregory Goode, Eldon Ronald Larsen, Hemal Ranchhod Patel, Jeffery Scott Bradley
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Abstract
There is provided a process for drying a fluidized reactor system comprising introducing a boiling point depressing agent into said system optionally while heating said system.
Claims6
A process for removing water from a gas phase polymerization reactor system having therein cool regions in which the water resides, said system optionally containing a resin bed, the removal being effected prior to carrying out a polymerization in the system, comprising
- (a) providing at least one compound in solid, liquid, or gaseous form capable of reducing the boiling point of water by at least about 2 degrees C.;
- (b) introducing the compound(s) into the system;
- (c) vaporizing the compound(s), which are in solid or liquid form, if any, into the gaseous form;
- (d) passing the compound(s) in gaseous form into the cool regions of the system wherein the gases condense to a liquid, and said liquid mixes with the water reducing the boiling point of the water;
- (e) increasing the temperature of and/or reducing the pressure in the system to vaporize the liquid/water mixture;
- and
- (f) removing the liquid/water mixture in vapor form by purging or venting from the system.
4 more elements
Dependencies are inferred from the claim text.