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Pyrolysis gasoline : ウィキペディア英語版 | Pyrolysis gasoline Pyrolysis gasoline or Pygas is a naphtha-range product with a high aromatics content.〔(Pygas )〕〔(PYGAS (Pyrolysis Gasoline) )〕 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.〔http://theses.gla.ac.uk/3542/〕 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== Raw Pyrolysis Gasoline, RPG or Raw Pygas is unhydrogenated Pygas which is rich in Benzene.
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