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Biodiesel vehicles - READ ONLY

170 messages,  Last post on Jun 30, 2007 at 6:36 AM

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What is this discussion about? Alternative Fuels, Biodiesel


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#112 of 170
Re: Can biodiesel replace 1/3 of our fossil fuel needs [gagrice] by sinepman
May 23, 2005 (1:27 pm)

Replying to: gagrice (May 23, 2005 11:49 am)

Thanks for the information. As much as it seems like a good alternative, I don't see us being able to produce enough to reduce our dependence on foreign oil. It is something I would be interested in. I understand VW now does NOT void the warranty if you use bio.
#113 of 170
Re: Can biodiesel replace 1/3 of our fossil fuel needs [sinepman] by bhill2
May 24, 2005 (12:02 pm)

Replying to: sinepman (May 23, 2005 1:27 pm)

I disagree with your statement as stated. I certainly do not believe that we can eliminate our dependency on foreign oil, but every gallon of biodiesel that we produce reduces our dependency by however much oil it takes to produce a gallon of diesel. This country has a tremendous amount of fertile land not yet used, and the refining of vegetable oil into biodiesel is much more environmentally benign than refining oil into diesel.
#114 of 170
Biodiesel by z28_sedan
May 24, 2005 (2:26 pm)
According to this website:
http://www.local23.org/biodiesel/lifecyclesummary.htm
 
...for every gallon of petrodiesel burned, 2.2 gallons of fossil fuel (crude oil, presumably) are needed (1 gallon burned, plus 1.2 gallons needed to make that one gallon). I imagine gasoline requires even more crude as it's more complicated to refine than petrodiesel.
 
By contrast, for every gallon of B100 burned, only 0.31 gallons of crude are needed. I imagine that can be reduced even more if biodiesel itself is used to fuel the harvesting, refining and distributing process.
 
From what I understand, biodiesel from algae is the best hope for fueling the entire diesel fleet.
#115 of 170
Re: Biodiesel [z28_sedan] by gagrice
May 24, 2005 (4:07 pm)

Replying to: z28_sedan (May 24, 2005 2:26 pm)

biodiesel from algae is the best hope for fueling the entire diesel fleet.
 
The studies are there saying just that. It is more likely we will be able to replace fossil fuel with biodiesel than hydrogen. No one has come up with an efficient, clean way to produce, store and transport hydrogen other than using nuclear power. Using solar to produce algae and subsequently biodiesel is more likely. I think we will see wide use of biodiesel long before we see hydrogen fuel cells.
#116 of 170
Re: Biodiesel [gagrice] by bhill2
May 26, 2005 (11:33 am)

Replying to: gagrice (May 24, 2005 4:07 pm)

I can't imagine biodiesel not being in use long before fuel cells. Developing biodiesel seems such a no-brainer given that any diesel vehicle can use it and it would not require any additional infrastructure beyond the facilities to produce it. I also have to admit that producing it from algae absolutely fascinates me. Imagine being able to produce our fuel from swamp land!
#117 of 170
Re: Biodiesel [bhill2] by gagrice
May 26, 2005 (2:07 pm)

Replying to: bhill2 (May 26, 2005 11:33 am)

I think the model was designed with the millions of acres of desert wasteland being flooded to produce algae. I'm with you that biodiesel is a no brainer. No gas engine can compare for overall environmental friendliness. Being CO2 neutral is a very big plus toward alleviating the GHG problems. Right now it is hard to find B100 biodiesel in San Diego. We have ULSD at the BP/ARCO stations so that is better than the old diesel.
#118 of 170
Anoher source of "bio" diesel by dhanley
May 27, 2005 (6:21 am)
Thermal depolymerization--it's a process that turns anything carbon based into gas, oil, and water. Tweaking the process can make his "oil" into a useful diesel.
 
http://www.kantor.com/useful/thermo.shtml
 
This could provide our mobility fuel needs from what we throw away right now--simply reprocessing our farm waste ( chaff, manure, etc ) would provide enough fuel for us to all get around.
 
Now i'm even more determined to get a diesel next.
 
dave
#119 of 170
Re: Biodiesel vehicles [Sylvia] by b0gman
Jun 03, 2005 (8:45 am)

Replying to: Sylvia (May 25, 2004 11:20 am)

An interesting source for ppl to read would be willie nelsons website. No that isnt a typo I may strongly disagree with him politically however he is a strong promoter of biod. Mr.Nelson's E320 CDI on B100(pure biodiesel) runs cleaner than a toyota prius.
#120 of 170
Re: Biodiesel vehicles [b0gman] by gagrice
Jun 03, 2005 (8:56 am)

Replying to: b0gman (Jun 03, 2005 8:45 am)

I had a long phone conversation with one of the American Biofuels owners yesterday. They cannot keep up with the demand at this time. He drives a Passat TDI and fills it with B100 when he can. He then may find himself where none is available and fills with #2 diesel. He tries to fill up when he is at half tank so he has a good percentage of Biodiesel. The car runs better and of course we know it is much cleaner in almost every emission that is measured. Including the fact that it is GHG neutral. No hybrid can claim that. He also told me that most of their production is presold to dealers in the Bay area. Until they expand they will not be able to sell to dealers in Southern CA.
#121 of 170
Energy Bill good news for biodiesel by gagrice
Jul 29, 2005 (2:21 pm)
And according to Richardson at University VW and Audi, consumers want to use biodiesel. VW is the first automaker whose warranties allow biodiesel to be used. Other makers void warranties because of concerns about the purity and performance of anything less than 100 percent diesel.
 
But Richardson, who is general manager, said his diesel models are flying off the lot.
 
"The Northwest is kind of a hot market for this because people in the Northwest tend to be more forward-thinking," he said.
 
http://seattlepi.nwsource.com/local/230525_biofuel29.html

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