The difference in smell between burning kerosene in an open flame and using it as heating oil for home heaters or stoves is primarily due to the combustion process and the presence of impurities in the kerosene.
- Combustion Process: When kerosene is burned in an open flame, such as in a lamp or a torch, it undergoes incomplete combustion. Incomplete combustion occurs when there is insufficient oxygen for the fuel to burn completely, leading to the production of by-products like soot and various volatile organic compounds (VOCs). These by-products can contribute to the distinctive, often pungent, smell associated with burning kerosene in open flames.
On the other hand, in home heaters or stoves designed for kerosene use, the combustion process is more controlled. These devices are equipped with burners and mechanisms to ensure a more efficient and complete combustion of the kerosene. As a result, there are fewer by-products and less odor produced during the burning process, making it less noticeable or more tolerable.
- Impurities: Commercially available kerosene used for heating oil typically undergoes refining and filtering processes to remove impurities and contaminants. These impurities, such as sulfur and other compounds, can contribute to the foul odor when burned. By removing or reducing these impurities, the kerosene used for heating oil becomes cleaner and emits fewer odor-causing compounds during combustion.
It's essential to use the appropriate type of kerosene for specific applications. Kerosene intended for lamps or open flame torches may have a stronger odor, but it is not suitable for indoor heating due to its incomplete combustion and potential health risks. Kerosene used for home heaters and stoves is specially formulated and refined to provide a more efficient and cleaner burn, making it safe for indoor use with minimal odor.