[Peakoil] Saudi crude can't replace Libyan

[Michael Skeggs mike@bystander.net]

Yes, but isn't jet fuel effectively a particularly pure kerosene?
http://en.wikipedia.org/wiki/Avgas
That said, I think the difficulty in replacing the Libyan crude is the
"spare" Saudi capacity is in more sour crude, and the refineries expecting
Libyan sweet crude can't process it.
I gather there is some global supply chain re-jigging going on to supply
some of the sour crude to Asia in place of their usual light-sweet, as they
can refine it, leaving some of their Saudi Light Sweet available for Europe.
Note also that Ireland gets 23% of its oil from Libya (or rather, isn't
getting) and Italy sources 10% of its natural gas from a Libyan pipeline.
Regards,
Michael Skeggs

On 1 March 2011 21:06, X <X> wrote:

>  Dear Tony
>
> By "energy density" I mean heat of combustion per unit mass of fuel. The
> following table (from Wiki) illustrates the general trend as you increase
> the length of a hydrocarbon chain.
>
>   Fuel
> Megajoule per kilogram (MJ per kg)
>
>
>
>  Methane <http://en.wikipedia.org/wiki/Methane> 55.50
>
>
>  Ethane <http://en.wikipedia.org/wiki/Ethane> 51.90
>
>
>  Propane <http://en.wikipedia.org/wiki/Propane> 50.35
>
>
>  Butane <http://en.wikipedia.org/wiki/Butane> 49.50
>
>
>  Gasoline <http://en.wikipedia.org/wiki/Gasoline> 47.30
>
>
>  Kerosene <http://en.wikipedia.org/wiki/Kerosene> 46.20
>
>
>  Paraffin <http://en.wikipedia.org/wiki/Paraffin> 46.00
>
>
>  Diesel <http://en.wikipedia.org/wiki/Diesel_fuel> 44.80
>
>
>  Coal <http://en.wikipedia.org/wiki/Coal> (Anthracite<http://en.wikipedia.org/wiki/Anthracite>
> ) 27.00
>
>
>  Coal <http://en.wikipedia.org/wiki/Coal> (Lignite<http://en.wikipedia.org/wiki/Lignite>
> ) 15.00
>
>
>  Wood <http://en.wikipedia.org/wiki/Wood> 15.00
>
>
>  Peat <http://en.wikipedia.org/wiki/Peat> (dry) 15.00
>
>
>  Peat <http://en.wikipedia.org/wiki/Peat> (damp) 6.00
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> Combustion of the short chain alkanes liberates relatively more energy per
> unit mass - which is critical when you are trying to get an aircraft off the
> ground.
>
> Cheers
>
> X 
>
>
>
> ------------------------------
> From: tony at tony-barry.emu.id.au
>
> Subject: Re: [Peakoil] Saudi crude can't replace Libyan
> Date: Tue, 1 Mar 2011 19:52:17 +1100
> To: X; peakoil at act-peakoil.org
>
>
>
> On 01/03/2011, at 7:47 AM, X wrote:
>
> Avgas, I believe. Aviation fuel must be as energy dense and as light as
> possible. I suspect the specifications for aviation fuel would be much
> stricter than for terrestrial transport - where you can get away with
> heavier substitutes and additives.
>
>
>  The energy density would be much the same and the density. While it might
> be a fraction lighter in deensity it is more a matter of the higher
> temperature it burns at and the lower temperature of the fuel tanks although
> I am guessing a bit.
>
> Tony
>
> Phone: 02 6241 7659, Mobile: 04 3365 2400, Skype: antonybbarry
> Email: tony at Tony-Barry.emu.id.au, antonybbarry at me.com<antonybbarry at me.com>
> , antonybbarry at gmail.com
> http://www.facebook.com/people/antonybbarry
> http://tony-barry.emu.id.au
>
>
>
>
>
>
>
>
>
>
>
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