thermal process hazards, process safety testing, risk analysis, thermal process safety thermal process hazards, process safety testing, risk analysis, thermal process safety


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A major hazard in chemical production and storage of chemicals is loss of thermal control, which can lead to destruction and release of toxic substances. A systematic risk analysis is essential in order to define the critical limits of temperature, dosing, storage temperature etc. A systematic risk assessment must include the following stages.

Compilation of basic data (physical and chemical properties, reactivity data, interactions between chemicals, equipment data etc.)
Define system (boundaries of safe process conditions)
Identify hazards ( e.g. Check lists, Hazard and operability studies(HAZOP))
Assess Risks (estimate severity and likelihood)
Select risk reduction measures( e.g. technical, organizational, personnel)
Remaining risks

Thermal process safety data of chemical reactions requires knowledge of the thermodynamics and kinetic properties of both wanted and unwanted reactions. Thermal process safety for physical operations (e.g. discharge, distillation) normally requires the thermodynamics and kinetic properties of unwanted reactions.

The basic questions to be asked in understanding of thermal data can be summarized as follows. e.g.
What quantity of energy release is considered to be in itself dangerous?
How can the Tad' potential adiabatic temperature increase, be used to determine a worst case scenario and its consequences?
How can the TMRad' time to maximum rate adiabatic, can be used to determine the probability?
How can the thermal data of the wanted and unwanted reactions be combined to develop cooling failure scenario and its criticality?
How can decomposition reactions be characterized?
How does one determine if a decomposition reaction is autocatalytic?

Chilworth Technology has a fully equipped laboratory to determine the thermal data necessary for thermal process safety and storage of chemicals, evolved gas collection and analysis, physical properties testing and transportation requirements testing under the United Nations guidelines. The professionals at Chilworth have many years of industrial experience and expertise in thermal process safety and can provide total solutions to process and operational hazard analysis from compilation of basic data to solving thermal process safety requirements.
Chilworth Technology Private Limited
Plot 3, Pocket B-2, Muskaan Complex, Vasant Kunj,
New Delhi-110 070, India.
Tel.: 011-26136979
Fax: 011-26135979
E-mail:
info@chilworth.co.in
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