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The natural oils dried out

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Q: Why is bitumen is cracked?
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Is bitumen flammable?

Due to it's nature as a form of crude oil, yes. Very flammable indeed.


What type of coal can be used in pulverized combustion?

Bituminous and subbituminous coals are user to make the pulverized coal for coal burners. This is coal containing the compound bitumen. It is a soft coal. They are graded according to their carbon content. They can be processed into coke before being pulverized.


What would turn engine oil creamy?

Water, If water gets into the oil, usually as the result of a broken head gasket or a cracked head, it will form an oil water emulsion. Stop the motor immediately as this will damage the rest of the engine.


What is HFO?

Heavy Fuel Oil is what if refereed to as the heavies, is the long chain hydrocarbons in crude that can not be distilled at 350 F. The products includes greases, waxes, plastics, asphalts, tar etc. The HFO can be further process to separate the different products or can be cracked, a process that breaks the long chain hydrocarbons in to shorter chain hydrocarbons and distilled into LNG, gasoline, diesel, kerosene etc.


Why would a flexible flue liner be recommended for a chimney?

A flue liner is a flexible sleeve inside the pipe that carries the combustible products, such as smoke, up from the fire away from the living area, and into the atmosphere, outside the house. A liner is needed in case the flue is cracked or damaged, causing the smoke to stay in the house, or causing cold wind from the outside to come into the house. A flue liner is added protection to keeping the house safe from fumes.