PCBL Chemical Limited Shift Incharge Interview Questions and Answers

Carbon black is a fine powder made from incomplete combustion of hydrocarbons.

• It is used as a reinforcing filler in rubber products.

• It is also used as a black pigment in inks, paints, and plastics.

• Carbon black is produced by burning petroleum oil or natural gas.

• It is a common ingredient in tires, conveyor belts, and other industrial rubber products.

Air preheater is a device used to heat the air before it enters the combustion chamber of a boiler.

• It improves the efficiency of the boiler by recovering waste heat from the flue gas.

• It reduces fuel consumption and emissions.

• There are two types of air preheaters: recuperative and regenerative.

• Recuperative air preheaters use a heat exchanger to transfer heat from the flue gas to the incoming air.

• Regenerative air preheat...read more