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The Importance of Inherently Safer Processes to Site Security

[+] Author Affiliations
Pamelyn G. Lindsey

E. I. du Pont de Nemours and Company, Inc., Wilmington, DE

Dennis C. Hendershot

Rohm and Haas Company, Croydon, PA

Paper No. IMECE2003-41962, pp. 7-13; 7 pages
  • ASME 2003 International Mechanical Engineering Congress and Exposition
  • Engineering/Technology Management: Safety Engineering and Risk Analysis, Technology and Society, Engineering Business Management, and Homeland Security
  • Washington, DC, USA, November 15–21, 2003
  • Conference Sponsors: Engineering and Technology Management Group
  • ISBN: 0-7918-3728-9 | eISBN: 0-7918-4663-6, 0-7918-4664-4, 0-7918-4665-2
  • Copyright © 2003 by ASME


Inherently safer processes (ISP) have become increasingly more important in recent years, specifically since the terrorist events of September 2001. New emphasis on site security and vulnerability has made it imperative for the chemical industry to view new and existing processes in a creative way. The tools available in designing an inherently safer process will allow industry to make these changes. “We ought, when possible, to be removing hazards rather than controlling them” (Kletz [1]). The concepts of inherent safety will be reviewed with specific examples with site security implications. For example the in-situ intermediate generation of methyl isocyanate (MIC) is a striking example of the concept of minimization and is of particular interest, since after the Bhopal incident, large quantities of MIC would be a target for terrorism. Other examples such as in-situ generation of phosgene use of aqueous ammonia instead of anhydrous, and elimination of chlorine cylinders in water treatment will be discussed with site security implications. The concepts used to create these inherently safer designs can then be integrated into existing process safety management programs to improve the overall safety of the chemical industry.

Copyright © 2003 by ASME



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