초록

Disclosed herein is a fluid bed polymerization process including an improved method for cooling the fluid bed. The recycled fluid stream is cooled by a method comprising

대표청구항 ▼

[ What is claimed is:] [1.] A continuous fluid bed chemical process comprising: continuously passing a fluid stream comprising reactant monomer through a fluid bed reactor in the presence of catalyst at reaction conditions of temperature, pressure, and fluid flow rate sufficient to form product, wit

[ What is claimed is:] [1.] A continuous fluid bed chemical process comprising: continuously passing a fluid stream comprising reactant monomer through a fluid bed reactor in the presence of catalyst at reaction conditions of temperature, pressure, and fluid flow rate sufficient to form product, withdrawing said product from said reactor, sufficiently introducing makeup monomer into said reactor, said reaction conditions being controlled by cooling at least a portion of an unreacted gas portion of said fluid stream by a cooling method comprising:a) cooling said unreacted gas sufficiently to condense a portion of said unreacted gas to form a liquid and a cooled gas,b) thereafter separating said liquid from said cooled gas,c) compressing said cooled gas,d) thereafter recooling said cooled gas sufficiently to condense a portion thereof to form a liquid and a recooled gas,e) reintroducing said liquid portions and said recooled gas into said reactor sufficiently to maintain reactive conditions.