Separation Processes – Industrial Chemical

1. Which manner is a chemical or biochemical plant not operated in?

• a) Continuous
  

• b) Batch-wise
  

• c) Semi-continuous
  

• d) Discontinuous

2. When is a separation process not required in a manufacturing process?

• a) When there is a decomposition reaction

• b) When there is a complete conversion

• c) When the byproducts are in form of gases

• d) When the reaction is reversible

3. If only 5% of Ethylene is converted to Ethylene glycol, why is there a need of separation process?

• a) To feed more reactant to the reacting mixture

• b) To remove the ethylene glycol formed

• c) To recover the unreacted Ethylene Glycol

• d) To start an intermediate reaction

4. 4.Will the side reaction require a separation process?

• a) Yes
  

• b) No

5. How is the Diethyl Ether removed in the manufacturing of ethanol from ethylene?

• a) Directly removed

• b) Crude distillation column

• c) Low pressure flash drum

• d) Light-ends tower

6. Chemical reactions require feed mixtures from non-renewable resources like coal, petroleum. What is used in place of non-renewable sources?

• a) Sunlight

• b) Biomass

• c) Biodiesel

• d) Microorganisms

7. Which of the following is a condition of operation for biochemical plant?

• a) Metallic catalyst

• b) Chemical catalyst

• c) Elevated temperature

• d) Non-pathologic state of the organism

8. In a biochemical plant, what do the physiological conditions vary with?

• a) The reaction

• b) State of the products

• c) The micro-organism

• d) The ambient conditions

9. How can be citric acid produced other than from lemons?

• a) Aerobic fermentation of starch

• b) Anaerobic fermentation of starch

• c) Aerobic fermentation of glucose

• d) Anaerobic fermentation of glucose

10. Which of the following separation techniques is NOT used in the process of manufacturing of citric acid ?

• a) Ultrafiltration

• b) Ion-exchange

• c) Crystallization

• d) Distillation