kenneal - lagger wrote:Did I not learn somewhere that energy can be neither created nor destroyed or some such mantra.
Certainly you would know this if you have ever had a thermodynamics class. But we aren't weren't talking about an energy correction factor, but a volumetric one.
kenneal wrote:
I think PS_RalphW said that there may be more volume but it has a lower energy density.
The 2nd Law REQUIRES that there be less energy coming out the far side of a particular process. Refinery gain is on a volume basis, certainly not an energy one. When you go to a refinery to buy a consumer product, you do it on a volume basis, give me a gallon of petrol please, or perhaps give me gallon of jet fuel please.
You certainly do NOT wander up to the front of the facility and ask for a 1,000,000 BTUs in whatever form they want to hand you.
kenneal wrote:
That would make sense and shows that refinery gain is just a bit of window dressing to fool non technical people that we are safe with oil.
Refinery gain is not window dressing, it is the measure used to compare inbound refinery volumes to outbound refinery volumes.
To be honest, I don't even think peak oilers are so stupid as to think that refinery gain can somehow save the world through ever increasing efficiency, but it is a fun thought experiment. How many doublings of change in refinery gain before a single barrel of input can generate all the world demand? Albert Bartlett could tackle that bit of ridiculous extrapolation like he did that for oil consumption.
kenneal wrote:
I thought Ralph was a technical bod and would know about things like that! Or should that be bot?
A refinery is a factory, no different really than a car factory or shoe factory. It takes in raw material, bits and parts and pieces of stuff, and churns out finished consumer product day in and day out.
A bot wouldn't understand that the refinery is the single largest hiccup in the peak oil theory. You see, there is no requirement that the factory build consumer products from only conventional crude oil.
Economists are the ones who know this and then model it correctly (such as the IEA in their 2008 WEO report and corresponding cost/supply curve) and chemical engineers are the ones who make it possible.