The protection of batch chemical reactors against overpressure

A study was required of the methods of protecting chemical reactors against overpressure. At present the use of bursting discs, or pressure relief valves is not only normal but virtually mandatory. There are, however, some uncertainties and difficulties in the design of venting systems based on bursting discs and pressure relief valves and some evidence of failures of such systems. There is also some pressure to permit alternative means of protection based on control systems, including trip and interlock systems.