PROCESS FOR PREVENTING THERMOPOLYMERIZATION OF DIENE HYDROCARBONS Russian patent published in 1995 - IPC

Abstract RU 2032650 C1

FIELD: petrochemistry. SUBSTANCE: prevention of thermopolymerization in depropanization and diethanization columns in the process of separation of pyrolysis products by multistage rectification by adding as the thermopolymerization inhibitor a hydrogenated C₉- fraction of the pyrocondensate which has a boiling point of 185-220 C in an amount of 0.001 to 1.0 wt % based on the original hydrocarbon mixtures to be separated in the depropanization and deethanization columns. EFFECT: improved method. 1 tbl

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RU 2 032 650 C1

Authors

Borejko N.P.

Grigorovich B.A.

Koshkina V.E.

Mishina N.S.

Dates

1995-04-10—Published

1991-05-12—Filed