DEVICE AND METHOD FOR ISOMERISATION OF FLOW OF HYDROCARBONS Russian patent published in 2015 - IPC C07C5/22 C07C9/14 C07C9/10 C07C7/13 C10G25/12 B01J20/34 

FIELD: chemistry.

SUBSTANCE: invention relates to method of removal of spent regenerating agent from regenerated drying device in system for isomerisation of flow of hydrocarbons, rich in C4 hydrocarbons and/or rich in at least one of C5 and C6 hydrocarbons. Claimed method includes: a) application of at least one valve and at least one of regulating valve and restricting hole for extrusion of spent regenerating agent from newly regenerated drying device in form of ascending flow to low-pressure device until pressure in newly regenerated drying device reaches value from 14 kPag to 69 kPag (2-10 pounds per sq. inch), with spent regenerating agent being selected from the group, consisting of isomerised C4 hydrocarbon product, isomerised C5-C6 hydrocarbon product, and gas; b) extrusion of spent regenerating agent from at least part of cross-over pipeline, located between said newly regenerated drying device and second drying device, with application of at least one valve and at least one of said regulating valve and said restricting hole; and c) functioning of both said newly regenerated drying device and said second drying device in successive mode for a time interval. Invention also relates to device.

EFFECT: application of claimed invention makes it possible to reduce degree of impact produced by gas drying device on reservoirs located downstream of flow.

10 cl, 1 ex, 4 dwg