Pyrolysis gasoline

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Pyrolysis gasoline or Pygas is a naphtha-range product with a 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 which contains aromatics, olefins and paraffins ranging from C5s to C12s. 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]