FIELD: chemistry.
SUBSTANCE: process of polymerizing a monomer in at least first and second reactors operating in series is described. The method comprises contacting a first stream comprising steam obtained from an effluent discharged from a second reactor with a feed stream for a second reactor. Mentioned first stream is separated from the polymer discharged from the second reactor at a pressure of 0.5 MPa (5 bar) or higher. Also, a first stream comprising steam derived from the effluent discharged from the subsequent reactor is contacted with the feed stream for the second reactor. This feed stream includes an effluent stream from the first reactor. A method for processing a first stream is also described.
EFFECT: preparation of a polymerization process having a high efficiency for the desired components of the final polymer, for example a monomer, but a low efficiency for other components, for example hydrogen.
16 cl, 1 ex
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