Furnace Oil is one of the cheapest fuels available for industrial use. It is a by-product of petroleum refineries. While processing the CRUD Oil, FO ( Furnace Oil ) is one of the products along with other petroleum fuels like HSD, Petrol etc.
Typically it has a calorific value as 10000 cal/gm. The furnaces which are used mainly for heating or pre-heating a large quantity of metal, are the main users of FO. This can be stored in vertical as well as horizontal tanks, above ground or even underground in some cases. The dimensions and capacities of these tanks are predefined in India by CCOE, which is the regulating body for fuel storages.
For direct burning, FO is viscous as well as not suitable for complete combustion. It is pre-heated to 55 degrees Celsius onwards, depending upon application. The flow increases with temperature and it improves the combustion also. A water based scrubber is used in the exhaust chimney of furnace, which arrests considerable amount of carbon suite and improves the emissions.
The entire FO yard, as per IS standards, pre-heating in storage tanks as well as pipes& Pumps etc, pumping station, level controls, control-panels and entire distribution pipeline is designed taking into consideration the application, required capacity of storage, logistics, available space and government norms.
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