Propylene is second most essential starting product in the petrochemical sector after ethylene. Propylene is a by-product of natural gas and oil refining processing. Propylene belongs to the alkene group and in this chemical structure present three double bonded carbon atoms. It is the raw material for an extensive variety of products. Polypropylene which is the polymer of propylene are consume nearly two thirds of global production. Propylene end user include packaging, films, fibers, containers, and caps and closures. Propylene is also used for the production of important chemicals like cumene, propylene oxide, acrylonitrile, butyraldehyde, and acrylic acid.