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How Is Ethylene Made

Ethylene is a hydrocarbon, a flammable and colorless alkene which is present in gaseous form. Ethylene is obtained from petroleum through the refining process. It will also be synthesized from natural gas and is a byproduct of the refining process. Ethylene is used within the manufacture of several chemicals and is also often egypt oil production used as an anesthetic.

Commercial Production
chemical solvent storage tank yihai kerryCommercially, ethylene is produced by a procedure often called steam cracking. This can be a procedure in which groups of hydrocarbons are heated to a point where they break into by products like olefins, propylene and ethylene. The first hydrocarbons used to commercially manufacture ethylene are gas oil and naphtha.

Steam Cracking
Steam cracking is a procedure which is carried out in a furnace under high temperatures and unusually high pressure. Sometimes, catalysts could also be added to obtain specific by products. Because the heat and pressure are increased, the hydrocarbons break into smaller molecules and deposit at exit chambers constructed at different levels in the furnace. Prior to now several decades, there have been egypt oil production no major technological advances as far as furnace design and cracking technology is concerned.

Modern Commercial Methods
To extend the production of ethylene, advanced olefins are used as catalysts within the cracking process. Though the fundamental method of breaking down the hydrocarbon molecules remains the same, adding the catalysts allow the cracking to occur at lower temperatures, therefore saving energy. This method egypt oil production increases production of ethylene, while reducing the energy needs by 20 percent and decreasing the carbon emissions.

Promoted by Further Research
The cracking of olefins and your complete interconversion process are being researched to boost the outputs. Currently, C4 to C8 olefins are cracked together with pyrolysis gasoline to convert them into ethylene. However, research is constant to search out a greater catalytic process which could lower the carbon emissions to a minimum and likewise enhance the control over the cracking process.

Other Methods
Very meager quantities of ethylene can also be obtained from the streams present in oil refineries. However, the ethylene produced in this manner is extremely dilute. Coal gasification is another method through which small quantities of ethylene may be manufactured. This process is known because the Fisher-Tropsch process and is commonly utilized in South Africa.

Related Searches
Britannica Encyclopedia: Cracking
WordNet Web: Ethylene
ICIS: Ethylene Production and Manufacturing Process

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