Pyrolysis gasoline or Pygas is a naphtha-range product with high aromatics content.[1] It is a by-product of high temperature naphtha cracking during ethylene and propylene production. Also, it is a high octane number mixture that contains aromatics, olefins, and paraffins ranging from C5s to C12s. The mixture has a CAS Number: 68477-58-7. PyGas has high potential for use as a gasoline blending mixture and/or as a source of aromatics. Currently, PyGas is generally used as a gasoline blending mixture due to its high octane number.[2] Depending on the feedstock used to produce the olefins, steam cracking can produce a benzene-rich liquid by-product called pyrolysis gasoline. Pyrolysis gasoline can be blended with other hydrocarbons as a gasoline additive, or distilled (in BTX process) to separate it into its components, including benzene.
Raw Pyrolysis Gasoline[edit]
Raw Pyrolysis Gasoline (RPG) or Raw Pygas is unhydrogenated Pygas which is rich in benzene.
Hydrogenated Pyrolysis Gasoline[edit]
Hydrogenated Pyrolysis Gasoline (HPG) or Hydrogenated Pygas is a feedstock of BTX plant for benzene and toluene extraction.[3]
References[edit]
- ^ PYGAS (Pyrolysis Gasoline)
- ^ Ali, Javed (March 24, 2012). "The hydrogenation of pyrolysis gasoline (PyGas) over nickel and palladium catalysts" – via theses.gla.ac.uk.
- ^ Communications, Chevron Phillips Chemical Company, Corporate. "Hydrogenated Pyrolysis Gasoline (HPG)". www.cpchem.com.
{{cite web}}: CS1 maint: multiple names: authors list (link)