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Re: Oil facts - compilation

Thu Aug 04, 2011 6:35 pm

Fuel economy information from Bureau of Transportation Statistics:

Motor Vehicle Fuel Consumption and Travel, 1960-2009.

Passenger Car and Motorcycle Fuel Consumption and Travel, 1960-2008: 22.6 mpg in 2008
Other 2-Axle 4-Tire Vehicle Fuel Consumption and Travel, including "vans, pickup trucks, and sport utility vehicles", 1960-2008.
Average of above two figures, 2008: 20.5
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aqn
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Re: Oil facts - compilation

Thu Aug 04, 2011 7:03 pm

philaphonic wrote:Running through some publicly available stats, [...]
Great info sources!

philaphonic wrote:In 2005, US refineries processed 6,250,625,000 barrels of crude oil, and 48% of the output was gasoline (1).
[...]
(1) http://www.npra.org/ourIndustry/refiner ... Statistics
Google'ing for "energy information administration annual refinery report": "Refinery Receipts of Crude Oil by Method of Transportation" in 2010 was 5,396,958,000 barrels.
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Re: Oil facts - compilation

Thu Aug 04, 2011 7:15 pm

philaphonic wrote:So now I'd like to add a couple more data points, this time regarding the energy it takes to drill for petroleum.(1) http://www.chron.com/disp/story.mpl/bus ... 50658.html
(2) http://www.spe.org/notes/2010/07/faqs-o ... ulf-spill/

Nice addition, I can't believe the name they give the ship. Sickening would be a better name in my mind.

They also had a nice link to what the oil money is being used for:

http://www.chron.com/disp/story.mpl/bus ... 20Business)

The plans make Saudi Arabia a front-runner in the competition between the oil-rich Gulf nations for glitzy, architectural trophies that dot their desert territories with such status symbols as glimmering skyscrapers and elaborate, artificial islands...


The construction giant is owned by the family of Osama bin Laden...
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Re: Oil facts - compilation

Sun Aug 07, 2011 10:11 pm

Caracalover wrote:The construction giant is owned by the family of Osama bin Laden...

Sure - but his family disowned him long ago. The Bin Laden group built the buildings the US and allied military members moved to after the Khobar Towers bombing...

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Re: Oil facts - compilation

Sun Aug 07, 2011 10:20 pm

Yodrak wrote:Certainly 1 gallon of gasoline takes more than 1 gallon of crude to produce - only 48% of what goes in as crude comes out as gasoline! So at the least it takes 2.08 gallons of crude (on average) to produce 1 gallon of gasoline.

You probably already know this, but for those that don't, there isn't an absolute ratio of crude:gasoline as the crude can be processed/hydrocracked/catalyzed/etc. to favor one product over another. Gasoline production can be lowered if the market needs more heating oil/diesel/jet fuel, for example.

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Re: Oil facts - compilation

Mon Aug 08, 2011 8:16 am

Agreed. Such adjustment happens for the northern hemisphere every fall, and then again every spring.

AndyH wrote:You probably already know this, but for those that don't, there isn't an absolute ratio of crude:gasoline as the crude can be processed/hydrocracked/catalyzed/etc. to favor one product over another. Gasoline production can be lowered if the market needs more heating oil/diesel/jet fuel, for example.
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Re: Oil facts - compilation

Fri Sep 09, 2011 6:57 am

http://www.nationmaster.com/graph/ene_o ... onsumption

Energy Statistics > Oil > consumption (most recent) by country
VIEW DATA: Totals Per capita
Definition Source Printable version

Bar Graph Pie Chart Map


Showing latest available data. Select another time period: Most recent 2001 2003 2004 2005 2006 2007 2009 2010 Rank Countries Amount Date
# 1 United States: 18,690,000 bbl/day 2009
Energy in United States

# 2 China: 8,200,000 bbl/day 2009
Energy in China

# 3 Japan: 4,363,000 bbl/day 2009
Energy in Japan

# 4 India: 2,980,000 bbl/day 2009
Energy in India

# 5 Russia: 2,740,000 bbl/day 2010
Energy in Russia

# 6 Brazil: 2,460,000 bbl/day 2009
Energy in Brazil

# 7 Germany: 2,437,000 bbl/day 2009
Energy in Germany

# 8 Saudi Arabia: 2,430,000 bbl/day 2009
Energy in Saudi Arabia
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Re: Oil facts - compilation

Fri Sep 09, 2011 8:52 am

It is worth considering that refineries also use a lot of natural gas in the refining process. That NG could be used to make electricity instead.
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Re: Oil facts - compilation

Fri Sep 09, 2011 10:01 am

philaphonic wrote:Running through some publicly available stats, I thought I was going to come up with some zinger of a condemnation against the refinery industry, in the sense of energy used to refine a gallon of gas. But unless I got some basic math wrong, it looks pretty efficient. Feel free to verify:

In 2005, US refineries processed 6,250,625,000 barrels of crude oil, and 48% of the output was gasoline (1). They used 48,891,000,000 kWh of electricity to do so (2), resulting in 89.4 Wh electricity consumed for every gallon of refined gasoline produced.

48891000000 / 6250625000 = 7.822 kWh/bbl crude oil
42 gallons/bbl -> 7.822/42 = 186 Wh/gal crude oil
186 * 48% = 89.4 Wh/gallon refined gasoline

In the last step you should divide by 48% instead of multiply, giving you 388 Wh/gallon. Others have made excellent points also about further consumption of energy in delivery, storage, etc. Also consumption of natural gas is no small matter. And don't forget all the potable water that is consumed, which is at least as important if not more so than the energy consumed. And we're leaving out the energy cost of getting the oil out of the ground and delivered to the refinery, which is probably higher than refining and transporting the gasoline.

I'm still looking for the source, but I've seen estimates around 8 kwh consumed per gallon of gasoline produced. If that's true that means a Leaf would go further on the energy to produce a gallon of gas than the average gas car would burning it.

EDIT: Admittedly a biased webpage, but Darell from evnut.com came up with over 12 kwh / gallon. He also pointed out that Nissan has advertised 7.5 kwh / gallon in their Leaf marketing: http://evnut.com/gasoline_oil.htm

EDIT 2: Still trying to figure out why your result is so low. I think your approach to getting the total barrels processed is an overestimate. It seems you took the 17,125,000 barrels/day CAPACITY from the NPRA source and multiplied that by 365 to get your 6,250,625,000 figure. I really doubt that 100% of U.S. refineries are running at 100% capacity 100% of the time, while the electricity consumption figures are what was actually used, not what they would consume at capacity.

EDIT 3: I found a figure of 2,225,344,000 barrels of gasoline PRODUCED by U.S. refineries in 2005 (link), so that brings your result up by almost a factor of 3. Getting closer.

EDIT 4: Your source for the 49 billion kwh figure doesn't seem too reliable, so going back to eia.gov I found this. Unfortunately that's for '98 so it's probably an underestimate. These numbers are also useful because they give total energy consumption, not just grid electricity (which I assume the 49 billion kwh is, although specifics aren't given on that page.) So for '98 we have 7,130 trillion BTUs consumed by petroleum refineries, or a little over 2 trillion kwh. We could use the 48% number to say only half of that goes directly to gasoline production, but that's still 20 times larger than the 49 billion kwh figure you found. And I'm sure the 2005 numbers are even higher!
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Re: Oil facts - compilation

Mon Oct 10, 2011 10:33 am

fooljoe, sorry I haven't written sooner, but thanks for checking up on those figures.

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