An overview of SuperChems for DIERS: A program for emergency relief system and effluent handling designs
Article first published online: 17 JUN 2004
Copyright © 1997 American Institute of Chemical Engineers
Process Safety Progress
Volume 16, Issue 3, pages 185–197, Autumn (Fall) 1997
How to Cite
Melhem, G. A. and Fisher, H. G. (1997), An overview of SuperChems for DIERS: A program for emergency relief system and effluent handling designs. Proc. Safety Prog., 16: 185–197. doi: 10.1002/prs.680160313
- Issue published online: 17 JUN 2004
- Article first published online: 17 JUN 2004
The Design Institute for Emergency Relief Systems (DIERS) Users Group awarded Arthur D. Little, Inc., a contract to provide the next generation computer program for emergency relief system and effluent handling designs.
The new computer program, SuperChems for DIERS, is a dynamic simulator, capable of performing emergency relief system and effluent handling designs for complex geometries and multiphase reaction systems. In addition, SuperChems for DIERS is an equation-of-state based program which provides several benefits over existing non-equation-of-state based methods for systems involving supercritical reactions like polymerizationsof butadiene and acrylonitrile, solution effects such as HCl/Water, and a priori determination of phase splitting.
This new computer program allows the user to dynamically simulate several common configurations for vent containment design. For example, the user is able to simulate a vessel discharging a two-phase mixture into a quench/vent where the catch/vent tank will vent to a stack or a scrubber. Unit operations available include separators (horizontal and vertical), cyclones, etc. The impact of back pressure and continuing reaction in the vent containment system is accounted for in the dynamic simulations.