The development of a real-time emergency advisory system for batch reactors

Mau, Knut; Nolan, P.F.; Steele, Catherine

doi:10.1016/0098-1354(96)00108-1

Cited by 3 publications

(1 citation statement)

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“…After a critical examination of incidents in chemical industry due to thermal runaways McIntosh and Nolan (2001) and McIntosh et al (2001) have suggested the development of real-time emergency advisory system (COGYS) (Mau et al 1996) for the operation of industrial chemical batch/semi-batch reactor to increase operator's diagnostic and trouble-shooting skills. After a critical examination of incidents in chemical industry due to thermal runaways McIntosh and Nolan (2001) and McIntosh et al (2001) have suggested the development of real-time emergency advisory system (COGYS) (Mau et al 1996) for the operation of industrial chemical batch/semi-batch reactor to increase operator's diagnostic and trouble-shooting skills.…”

Section: Introductionmentioning

confidence: 99%

Towards Improved Reaction Runaway Assessment Methods I. Simple Calorimetric Method Of Evaluation Of Heat Transfer Coefficient And Reactor Thermal Mass

Papadaki¹,

Nawada²

2003

International Journal of Chemical Reactor Engineering

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The use of reaction calorimetry in the chemical industry is constantly growing. Its use aims at the assessment and subsequent reductions of the risks arising from reaction thermal runaways in the event of cooling system malfunction or agitation failure and at optimum process design.A reaction calorimeter is a small-scale automated jacketed reactor equipped with a precise temperature controller, which is capable of heat balancing. The reactor contents may be heated or cooled by heat-transfer oil and they are continuously agitated. A powerful thermostatic bath allows rapid adjustment of jacket temperature to maintain the desired reactor temperature-profile. The reactor and jacket temperatures as well as a number of other quantities are continuously measured. A heat balance, based on a number of assumptions, is used for the evaluation of the heat of reaction and its global kinetics. The evaluation of the overall heat transfer coefficient and the accumulated heat are achieved by means of calibrations. Their measurement is, in the main, long. Also it is very often lacking sufficient accuracy.In the present approach, a simple method for the accurate evaluation of the overall heat transfer coefficient is presented. It is also shown how the analysis of the heatbalance equations in different stages can be used for the simultaneous evaluation of a number of quantities and constants of the reaction calorimeter using a single set of calibration experiments.

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