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Cracking Gasoline Vapor?


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#1 49lone82

49lone82

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Posted 13 August 2014 - 09:36 PM

I'm working on a vehicle running on vapor and would like go to go one step farther by cracking the vapor What temperature do I have to get the vapor to to crack it?

#2 P.K.Rao

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Posted 14 December 2014 - 01:27 AM

Light molecules of hydrocarbons do not crack. Gasoline   contains hydrocarbon molecules of C5 to C10 range. Hydrocarbon molecules of C30+ only crack which are present in vacuum gas oil and above.



#3 chemsac2

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Posted 14 December 2014 - 06:15 AM

49lone82,

 

Gasoline is Naphtha range molecules. Steam crackers crack Naptha routinely to produce Ethylene.

 

Typical temperature in Naphtha cracker furnaces outlet is 800 deg C for significant yield, but cracking starts at around 400 deg C. 

 

Sufficient information exists on reaction kinetics and mechanism of steam cracking of Naphtha for you to study your system.

 

Regards,

 

Sachin



#4 P.K.Rao

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Posted 14 December 2014 - 07:33 AM

Yes. Gasoline cracks only under some conditions, like catalysts, steam . It does not crack under normal conditions. Your first question gives the impression that you want to crack gasoline vapor to use it in the vehicle.






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