Community Research and Development Information Service - CORDIS


The occurrence of an uncontrolled chemical runaway reaction in a batch type reactor or storage vessel is a frequent event in the chemical industry. When this results in an uncontrolled release of chemicals to the atmosphere, with serious environmental consequences, it is usually due to vessel failure, which results from the fact that the emergency relief system is not correctly sized. This paper describes what happens within the vessel during emergency relief. It highlights the basic phenomena present during the transient and the results of their interactions. The modelling of these is considered, in particular using the computer code RELIEF developed at the JRC.

Additional information

Authors: DUFFIELD J S, JRC Ispra (IT)
Bibliographic Reference: Paper presented: Ispra course - Safety of Chemical Batch Reactors and Storage Tanks, Ispra (IT), April 15-19, 1991
Availability: Available from (1) as Paper EN 36179 ORA
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