Off-specification used oil may be burned for energy recovery in all of the following locations, except:

Off-specification used oil may be burned for energy recovery in all of the following locations, except:

• A. Boilers
• B. Industrial Furnaces
• C. Hazardous Waste Incinerators
• D. Coal-Fired Power Plants

Answer: (D)

The key idea is that used oil can be burned for energy recovery only in facilities that are specifically equipped and permitted to burn used oil as a fuel. Boilers, industrial furnaces, and hazardous waste incinerators are the types of equipment that regulators allow to accept used oil for energy recovery when they meet the required standards and permitting. Coal-fired power plants, on the other hand, are designed to burn coal and are not designated or routinely permitted to use used oil as a fuel. Introducing used oil into a coal plant would raise regulatory and emissions concerns, require additional permitting, and complicate air and waste-traceability controls, so they’re not a normal or allowed location for energy recovery of off-spec used oil. So, off-spec used oil may be burned for energy recovery in boilers, industrial furnaces, and hazardous waste incinerators, but not in coal-fired power plants.

The key idea is that used oil can be burned for energy recovery only in facilities that are specifically equipped and permitted to burn used oil as a fuel. Boilers, industrial furnaces, and hazardous waste incinerators are the types of equipment that regulators allow to accept used oil for energy recovery when they meet the required standards and permitting.

Coal-fired power plants, on the other hand, are designed to burn coal and are not designated or routinely permitted to use used oil as a fuel. Introducing used oil into a coal plant would raise regulatory and emissions concerns, require additional permitting, and complicate air and waste-traceability controls, so they’re not a normal or allowed location for energy recovery of off-spec used oil.

So, off-spec used oil may be burned for energy recovery in boilers, industrial furnaces, and hazardous waste incinerators, but not in coal-fired power plants.