Case Study and Design Flare Package System for Waste Gas

  • A D Astuti, Yuliusman


This study examines the important issue to determine flare header size extension from
original location to new location of acid flare to prevent damage caused by overpressure.
Gas flaring is a common practice used in many industrial processes such as refinery,
petrochemical, and oil-gas industry to release flue gas. It is a must-have safety
requirement which is installed to reduce excess pressure when the plant is shut down for
annual repair, start up or emergency circumstance. With case study and design flare
packages system will get additional information because acid flare system has been
designed based on the largest single risk with consideration of acid content. Methods
flare design studies will be using thermo-hydraulic model. The modelling will be
simulated using AspenTechs FLARENET software with some scenario from existing acid
flare system design basis for non-simultaneous relieving load and then new acid flare will
receive additional load from new unit. From the result of simulation, without changing
the size of tailpipe will cause the failure of PSV when the fire case occurred. So, start up
without changing size of pipes is not recommended, change some tailpipe 3” into 4” to
ensure sufficient back pressure during fire case, for CV failure scenario to ensure back
pressure sufficient during CV fail scenario, change type PSV from balance to pilot type

How to Cite
A D Astuti, Yuliusman. (2020). Case Study and Design Flare Package System for Waste Gas. International Journal of Advanced Science and Technology, 29(7s), 3289-3295. Retrieved from