Interview Questions and Answers

Distillate product purity is influenced by factors such as feed composition, operating conditions, column design, and efficiency of separation processes.

• Feed composition - The composition of the feed entering the distillation column will directly impact the purity of the distillate product.

• Operating conditions - Factors such as temperature, pressure, and flow rates play a crucial role in determining the purity of the distillate product.

• Column design - The design of the distil...read more

To increase scrubber capacity, consider upgrading equipment, optimizing process parameters, and expanding physical space.

• Upgrade existing scrubber equipment to handle higher capacities

• Optimize process parameters such as flow rates and chemical dosages

• Expand physical space to accommodate larger scrubber units

• Consider implementing advanced technologies like automation and monitoring systems

• Consult with experts in the field for recommendations and best practices

To increase pump head without modifying existing pump, adjust system parameters like pipe diameter, pump speed, or impeller size.

• Increase pump speed to increase head

• Use a larger impeller to increase head

• Reduce pipe diameter to increase head

• Optimize system layout to reduce head losses

Boiling point of unknown liquid can be measured using a variety of methods including distillation, gas chromatography, and boiling point apparatus.

• Use a distillation setup to heat the liquid and collect the vapor at different temperatures to determine the boiling point.

• Perform gas chromatography to separate the components of the liquid and identify the boiling point of the unknown liquid.

• Utilize a boiling point apparatus which heats the liquid gradually until it reaches its b...read more

I am interested in research areas related to sustainable energy, process optimization, and materials science.

• Sustainable energy

• Process optimization

• Materials science

An orifice meter is a device used to measure the flow rate of a fluid, while valves and distillation columns are important components in process engineering.

• Orifice meter is a type of flow meter that uses a constriction in the flow path to create a pressure drop, which is then used to calculate the flow rate.

• Different types of valves include gate valves, globe valves, ball valves, butterfly valves, and check valves. Each type has its own specific applications and characterist...read more

Different types of flow reactors include continuous stirred tank reactors, plug flow reactors, and packed bed reactors.

• Continuous stirred tank reactors (CSTR) have continuous flow and well-mixed contents.

• Plug flow reactors have a uniform flow with minimal mixing.

• Packed bed reactors contain catalyst particles packed in a bed through which the reactants flow.

• Other types include tubular reactors, fluidized bed reactors, and membrane reactors.

There are various types of dryers used in process engineering such as rotary, fluidized bed, spray, freeze, and vacuum dryers. Rotameter is a flow measuring device.

• Rotary dryers are used for drying materials by direct contact with hot gas.

• Fluidized bed dryers use hot air to suspend and fluidize the material to be dried.

• Spray dryers use a nozzle to atomize the liquid feed into a fine mist which is then dried by hot air.

• Freeze dryers use a process called sublimation to remove m...read more