Hazard analysis of toxic gas release

This project includes studying different modes of dispersion such as heavy gas and dispersion modeling and some software models. Toxic release from chemical plants can affect adjacent plant/public located in surrounding area. Therefore, to analyze the concentration plume of the toxic gas in the plant boundary will help emergence preparedness and follow regulatory guideline.

About the Instructor

Ms. Tejeswi Ramprasad is a PhD Scholar at the Department of Chemical Engineering, IIT Bombay

 

About the Project

Industries like fertilizer, refineries, petrochemicals, pesticides, explosives, Nuclear Fuel Cycle facilities etc handle large quantities of toxic, flammable and explosive chemicals. These chemicals are generally stored in tanks /vessels and are transported through network of pipelines to various plants for processing. This also involves series of loading and unloading operations. In this study, a gas which is
predominantly toxic is chosen for assessment of consequence due to possible release scenario The catastrophic failure of one storage tank or a pipe line/ process tower carrying dynamic gas is considered as a possible scenario. Failures of this nature can lead to damage to public, property and environment.
Therefore it is a concern to evaluate risk by estimating consequence and likelihood of each scenario and accordingly risk reduction measures are taken for high risk events. The risk varies with physical property of chemical and different process condition. The risk may also vary for the same chemical used in the process in different process condition. A typical chemical plant is chosen where hazardous chemical like toxic and flammable gas is used in the process. Therefore the study on release scenario from possible dynamic storage inventories such as distillation tower/ exchange tower failure is of utmost importance.

This project includes studying different modes of dispersion such as heavy gas and dispersion modeling and some software models. Toxic release from chemical plants can affect adjacent plant/public located in surrounding area. Therefore, to analyze the concentration plume of the toxic gas in the plant boundary will help emergence preparedness and follow regulatory guideline.

The objective of the study is to study the consequence of the adjacent factories and public. The outcome of the study will be development of guidelines for modification of plant.

Some Pre-Requisites  

  • Basics of industrial safety

Week 1

1
Study and review of dispersion modelling, understanding the weather and atmospheric scenario

Week 2

1
Study the process of H2S based plant and study the layout

Week 3

1
Scenario of failure can be considered exchange tower failure / storage tank failure

Week 4

1
Modelling the failure scenario using the theoretical calculations available in literature

Week 5

1
Modelling the scenarios on Areal Locations Of Hazardous Atmosphere (ALOHA)

Week 6

1
Concluding remarks and proposing plant regulatory guidelines

Week 7

1
Report Creation and Submission
Course available for 50 days
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Includes

12 LIVE Sessions
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