Pack beds are found in all of the following locations except in which of the following?

Pack beds are found in all of the following locations except in which of the following?

• A. Boilers
• B. Furnaces
• C. Reboilers
• D. Heaters

Answer: (B)

Packed beds are used to increase contact surface inside a vessel, boosting heat transfer or mass transfer between fluids and sometimes supporting catalytic or other reactions. This approach is common in equipment like boilers, reboilers, and heaters, where sections can be designed to include packing to improve performance. A furnace, by contrast, is a direct-fired combustion chamber where heat is generated and transferred primarily to surrounding tubes and walls without a packing material bed. Because of this, packing beds aren’t found in furnaces—the other equipment can incorporate them to enhance process efficiency, while a furnace does not.

Packed beds are used to increase contact surface inside a vessel, boosting heat transfer or mass transfer between fluids and sometimes supporting catalytic or other reactions. This approach is common in equipment like boilers, reboilers, and heaters, where sections can be designed to include packing to improve performance. A furnace, by contrast, is a direct-fired combustion chamber where heat is generated and transferred primarily to surrounding tubes and walls without a packing material bed. Because of this, packing beds aren’t found in furnaces—the other equipment can incorporate them to enhance process efficiency, while a furnace does not.