Title: Visbreaking process
Application Number: 85106304 Application Date: 1985.08.19
Publication Number: 1008715 Publication Date: 1987.02.18
Approval Pub. Date: Granted Pub. Date: 1990.01.17
International Classifi-cation: C10G9/00
Applicant(s) Name: UOP Inc. Address:
Inventor(s) Name: John B. White
Attorney & Agent: LUO HONG LIU YUANJIN
Abstract:
     An improved visbreaking process having a lower utilities (heating fuel) cost is disclosed. The feed stream is heated by indirect heat exchange against the bottoms stream of a first fractionation column, which receives the effluent of the visbreaking heater. Apportion of this bottoms stream is then used as quench. This quench stream is hotter and has a higher flow rate than previous designs. The feed is heated to a higher temperature by the indirect heat exchange and therefore less fuel is required in the visbreaker fired heater.
Time: 10