Process Safety Calculations

Scale-up calculations based on reaction calorimetry data play a crucial role in ensuring the safety of chemical processes at the plant level. Reaction calorimetry provides essential information about the heat released or absorbed during a chemical reaction, allowing for a better understanding of the thermal behaviour of the reaction. This … Scale up calculation from

Hello everyone, We all are aware about Differential Scale Calorimetry ( DSC). If anyone new to concept can get the information from our youtube video on DSC links areas bellow; What is Differential Scanning Calorimetry (DSC) ?? : https://youtu.be/2Rh4nqRcVAM  DSC Practical Guide- Part 1 :   https://youtu.be/OLf_YPM1gvs  Practical Guide to DSC … TMRad and Heat liberation

These are handy calculations to understand the basic risk associated with process. Useful to decides about requirement of further testing like RC, ARC, ARSST for evaluation of Risk associated with process 1st Calculation: From this we get actual adiabatic temperature rise considering Decay rate of material. It is very important … Process Safety Hand CalculationsRead

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Capacitance of the Body? It ability of body to stored electrical charge Capacitance can vary with Skin moisture, Contact area, distance from other object It is very important considering electrical safety and designing touch sensitive devices It helps prevent electric shocks by understanding how body will interact with electrical system … Static charge calculation –

Fundamental of Static charge: Electricity: Flow of Electron Static Electricity: It is due to imbalance between Positive & Negative charge Electrons are very loose can donate or accept very easily like just due to rubbing activity What is Electric Force? It is attraction or Repulsion between any two charge body … Static charge calculation during

Fundamental of Static charge: Electricity: Flow of Electron Static Electricity: It is due to imbalance between Positive & Negative charge Electrons are very loose can donate or accept very easily like just due to rubbing activity What is Electric Force? It is attraction or Repulsion between any two charge body … Static charge calculation during

  1. Ventilation Purpose: To control the air  bone concentration of Toxic material particle in working area or Environment 2. Principle of operation: Dilute the containment below the target concentration Remove containment before worker exposed         Ventilation system composed of Fan & Ducts 3. Types of Ventilation system; Negative … Ventilation Rate CalculationRead More

Importance of effectiveness of Heat Exchanger Capacity ; Lower capacity of Heat exchanger causes loss of solvent which can leads to Environmental hazard  Lower capacity of Heat exchanger causes Fire hazard probability due to losses of solvent from Vent of HE  Lower capacity of HE can result in less vapor … Effectiveness of Heat Exchanger

Calculating chemical vapor exposure is crucial in assessing potential health risks associated with the presence of certain chemicals in the environment or workplace. This calculation is essential for several reasons: Risk Assessment: Determining exposure levels helps in evaluating potential health risks to individuals or populations. Exposure assessments can aid in … Chemical Vapour Exposure CalculationRead

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Potent  Compound: A compound is deemed to be potent in pharmaceutical terms if it has an eight-hour, time-weighted average occupational exposure limit (OEL) of 10 µg/m3 or less OEL- Occupational  Exposure Limit: Type of OEL; Ø Time Weighted Average (TWA – 8hr): The concentration for an 8 hr workday, 40 hr … Potent Compound – Band

Vacuum Nitrogen Pressure purging;      Operation: Vessel evacuated by Vacuum & then pressurized with Nitrogen Nitrogen pressure break by vacuum       Advantages: Less amount of nitrogen & Time required than Pressure purging & Flow through purging … Intertization- Vacuum Nitrogen Pressure PurgingRead More »

Nitrogen pressure purging: Operation: Nitrogen continuously flow to vessel and vessel pressure rises @ set value Vent valve closed After certain pressurization vent valve open to vent the pressure Cycle repeated till required LOC achieve Advantages: Less amount of nitrogen & Time required than Flow through purging Things to consider … Intertization- Nitrogen Pressure PurgingRead

Procedure: Continue Nitrogen purging in vessel / reactor and it vented to atmosphere continuously through vent to achieve required Oxygen percentage up to Minimum Oxygen Concentration (MOC) to avoid the Fire Hazard Advantages: Simple in operation Pressure vessel which are design for atmospheric pressure can also intertize with this procedure … Intertization- Nitrogen Flow through

     Importance of Heating Capacity Calculation; Temperature Control: Reactors often operate at specific temperature ranges to ensure that chemical reactions occur efficiently and produce the desired products. Heating the reactor too quickly or too slowly can result in temperature variations that may lead to safety hazards, such as runaway … Batch reactor Heating Capacity

Desired Process: T(Process): Temperature of  the Process. The only thing we actively choose  MTSR: Maximum Temperature of Synthesis Reaction TMRad(1): Time to Maximum Rate (adiabatic) ΔTad(1) : Adiabatic Temperature Rise Undesired reactions (decompostion etc.): TMRad(2): Time to Maximum Rate (adiabatic) ΔTad(2) : Adiabatic Temperature Rise      Importance of Cooling Capacity … Batch reactor Cooling Capacity