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Topic: Great article from Environmental News Network (7 msgs / 152 lines)
1) From: John and Emma
Hi All,
Below is a great Article. miKe could this support your stores? I copied the
article below from the Environmental News Network.
John H.
America's Addiction Fuels Desire For Coffee Ground Biodiesel
Written by Nick Chamber, courtesy of Gas2.org
Researchers are reporting they have successfully made a high quality
biodiesel from spent coffee grounds. They estimate that the coffee ground
biodiesel industry could generate as much as $8,000,000 in profits annually
using waste from US Starbucks stores alone.
One of the main limits to the acceptance of biodiesel as an alternative fuel
is its price premium above regular diesel. To bring the price of biodiesel
down, the industry uses as much waste material from other industries as
possible to make it - such as used fryer oil and animal fats from poultry
processing.
In holding with the idea of cheap biodiesel feedstocks, a team of
researchers in the Chemical and Materials Engineering Department at the
University of Nevada figured that maybe spent coffee grounds would fit the
bill too.
And boy do they ever. Not only do spent coffee grounds have a relatively
large amount of oil (about 15% - almost all of which can be converted into
biodiesel using standard methods), biodiesel made from the grounds has a
long shelf life due to the large amount of antioxidants in coffee.
Antioxidants slow the process of rancidification.
There's a bonus too: at the end of the biodiesel extraction and conversion
process, the leftover grounds can be turned into fuel pellets for wood
stoves and boilers, closing the waste loop (or at least putting most of the
carbon and nutrients that had recently been used by the plant to grow back
into the atmosphere where they can again be used by plants to grow).
Given that Starbucks generates 210 million pounds of spent coffee grounds
per year in the US, the researchers calculate that it could amount to 2.92
million gallons of biodiesel and 89,000 tons of fuel pellets. After taking
out operating costs, and assuming a sale value of $4.50/gallon of biodiesel
and $225/ton of fuel pellets, that amount equals just over $8 million of
profits per year (view calculations).
Conducting my own calculations, even at $3/gallon for biodiesel, profits
would be in the $4 million per year range.
Anybody in Seattle listening?
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2) From: Joseph Robertson
"Anybody in Seattle listening?"
How about anyone in the world listening since *$s is a global operation.
Great post, thanks John.
JoeR
On Tue, Dec 9, 2008 at 6:30 PM, John and Emma  wrote:
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3) From: Seth Grandeau
"or at least putting most of the
carbon and nutrients that had recently been used by the plant to grow back
into the atmosphere where they can again be used by plants to grow"
There's a new take on CO2 and global warming. :)
But on a serious note, one of the problems with biodiesel from waste
products is shipping.  Although all of Starbuck's coffee goes through
Seattle, by the time its ready for processing into Biodiesel, its wet and
moldy at one of how may stores all over the world?  Getting it back to a
central site for processing is not an easy or cheap task and no one ever
adds that into their calculations. I think that, for this type of biodiesel
to work, you'll need the ability to process on a much smaller scale and in a
much more distributed manner.  Much like the "make your own biodiesel from
fryer oil" market.
Still, all-in-all an interesting idea and an interesting read.  Thanks for
posting it.
On 12/9/08, Joseph Robertson  wrote:
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4) From: Mike Koenig
so what's needed is a small device that extracts oil and presses fuel
pellets, along with a roaster that runs off of the fuel pellets.
interesting.
--mike
On Wed, Dec 10, 2008 at 12:29 PM, Seth Grandeau  wrote:
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5) From: R Nepsund
If somebody is roasting in a drum over a grill they may be able to just toss
dried grounds under there.
On Wed, Dec 10, 2008 at 10:05 AM, Mike Koenig  wrote:
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6) From: Seth Grandeau
So when you have a roast fire, don't panic, just start another roast on top
of it. :)
On 12/10/08, R Nepsund  wrote:
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7) From: Joseph Robertson
AHhh, like a back fire.
Jr
On Wed, Dec 10, 2008 at 1:19 PM, Seth Grandeau  wrote:
<Snip>
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