METHOD Russian patent published in 2017 - IPC C08F2/01 C08F2/06 C08F10/00 

FIELD: chemistry.

SUBSTANCE: invention is a method of supplying liquid feed streams in a polymerization process. Method for supplying fresh feedstock selected from a fresh comonomer and a fresh inert hydrocarbon to a polymerization reactor is described. The polymerization reactor is a part of polymerization process that includes recovery systems at a high 0.5 MPa (5 bar) or higher and a low pressure of less than 0.5 MPa (5 bar). The method comprises feeding of mentioned fresh feedstock and a process stream comprising a first component selected from hydrogen, nitrogen and methane and a second component that is a monomer to a separator at a pressure of 0.4 MPa (4 bar) or less to obtain the first stream comprising most of the first component and a second stream comprising most of the fresh feed stream and most of the second component and feeding the second stream to the polymerization reactor. Method of treating a fresh feed 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.

20 cl, 3 ex