METHOD OF REGULATING PROCESS STREAMS DURING PRODUCTION OF CYCLOHEXANE Russian patent published in 2010 - IPC G05D11/02 

FIELD: physics; control.

SUBSTANCE: invention relates to methods and devices for regulating processes and can be used in chemical industry during production of cyclohexane. The method of regulating streams in the production of cyclohexane comprises heat exchangers, condensers, hydrogen and benzene hydrogenation reactors, an end product cooler, a separator with benzene and hydrogen flow valves and sensors, temperature sensors in the hydrogenation reactors, level sensors in the end product cooler, connected to a controller. The method also comprises a benzene circulation loop with a pump, a container and a pressure sensor, collectors for distributing benzene and hydrogen to standby units, apparatus for removing trace impurities from benzene, a liquid cyclohexane pipe, shut-off valves, additional temperatures sensors in hydrogen and benzene hydrogenation reactors, and a pressure and residual gas flow sensor. Benzene and hydrogen are fed from the container with a pump and shut-off valves along the circulation loop to benzene and hydrogen distribution controllers. The initial mixture is heated and directed through heat exchangers and shut-off valves into the apparatus for removing trace impurities from benzene and into hydrogen and benzene hydrogenation reactors. The weighted average temperature of the mixture is determined and is regulated through supply of condensate.

EFFECT: wider range of application, increased output and quality of obtained cyclohexane.

2 cl, 2 dwg, 1 tbl