Tag: fossil fuels

In the refinery for lubricating oil, solvent refining, clay treatment and hydrotreatment are the important processes. The solvent used for refining purpose has to be pure. Clay treatment is done to remove colour, odour and sulphur from the oil. 

Cleveland is an open cup apparatus is also known as open cup tester. In this, the cup is first filled with the product to a certain level. Then the temperature is raised rapidly and then at a slow constant rate as it approaches the theoretical flashpoint. The lowest temperature at which a small test flame passing over the liquid ignites the vapour is considered chemical's flashpoint.

Hydrocarbon is a compound containing carbon atoms and hydrogen atoms. Methane is the hydrocarbon found in the earth's crust. It is the simplest hydrocarbon. It is mainly used as fuel.

Propylene is often referred to as the crown prince of petrochemicals. Propylene is a byproduct of steam crackers and the varying amount of olefins is produced from steam crackers depending on the type of feedstock. Other sources of propylene may be the recovery of propylene from FCC light ends, Propane dehydrogenation and fluidized bed catalytic cracking.

Bharat stage emission standard is an emission standard institute which is governed by the government of India to regulate the air pollutants from internal combustion engines or vehicle motors.Bharat Stage III norms or Euro III norms were enforced in October 2010 all over the country. According to this benzene content in gasoline should be 1%.

Aniline point is the lowest temperature at which equal volumes of fresh aniline and an oil are completely miscible. Higher the aniline point, higher is the diesel index. Diesel index indicates the ignition quality of the fuel. 

In petroleum chemistry, Steam cracker plant is a process by which complex organic molecules are broken down to the simpler molecules using steam. Here, the cracking is done by using steam. Ethane cracking consumes the maximum amount of steam.

In catalytic reforming process, high octane number reformate is formed which is the main component of the motor, fuel, aviation gasoline or aromatic rich feedstock. Favourable Conditions for the reaction are High temperature, Low pressure and low space velocity.

Octane number can be determined by RON, MON and AKI. The most common method used for the measurement is RON. RON is determined by running the fuel in a test engine and comparing the results with those for mixtures of iso- octane and $n$- heptane. The RON/MON value for $n$- heptane is 0.