Comments on: Greenline's Waterless Biodiesel Process Receives Funding

By: newfileengine

newfileengine — Fri, 31 Oct 2008 21:11:04 +0000

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By: Actually, biodiesel is a net positive energy source. 3.2:1

Actually, biodiesel is a net positive energy source. 3.2:1 — Sat, 12 Apr 2008 03:11:34 +0000

Ethanol is a loser on energy. Biodiesel is a positive energy balance of 3.2-3.5 to 1.

By: Peter Brown

Peter Brown — Sat, 12 Apr 2008 01:40:42 +0000

The discussion on what constitues an energy neutral, deficit or credit is still up in the air. The Pimentel report has been proven to be totally biased and probably requested by a large petroleum company. Check out the berkeley website where the report originated and notice the request for continued petro dollars. As we examine new sources of oil, from algae to camelina and animal fats we are discovering that there are alternatives and that the Greenline process, which can handle any oil to produce biodiesel is thewave of the future. Add to that the waterless feature and you have clean environment open to a number of alternatives. But some of you guys are absolutely on the money, it is much better to support big oil with wars, high profits and subsidies than to try and change things. I would also like to point out that energy is a relative term, if all you have is palm oil and are forced to pay huge amounts of your GNP for basic energy needs, than I think that they should look at biodiesel. Of course this interferes with big oil’s pitiful profit schemes, but I think small countries must be ruthless and protect themselves.

By: Carson O'Genic

Carson O'Genic — Fri, 11 Apr 2008 05:18:43 +0000

I imagine calculating the net gain or loss of energy in making biodiesel is hard to calculate as the source of fats and oils used in making biodiesel is varied.

Restaurants often recycle or sell their leftover grease which can be used to make many products in addition to biodiesel. Homeowners often dump it down the drain. Here in San Francisco they are expanding the recycling of food grease because dumping it down the drain costs lots of money in sewer repairs. So it is a win-win to recycle the grease and use it for fuel or other products.

Check out: http://www.sfgreasecycle.org/residents.shtml

By: CLD

CLD — Thu, 10 Apr 2008 22:41:59 +0000

Biodiesel is made by trans-esterifying fatty acid triglycerides to fatty acid methyl esters. Cellulose is not involved.

By: andrea

andrea — Thu, 10 Apr 2008 19:30:14 +0000

Biodiesel produces three more units of energy than it takes to make. What about that is not a net positive energy source? http://nbb.grassroots.com/08Releases/EnergyBalance/

By: eddiequest

eddiequest — Thu, 10 Apr 2008 19:03:51 +0000

Don’t you worry ’bout that. It’s all coming at about the same time. (think-algae)

By: Dom

Dom — Thu, 10 Apr 2008 18:55:55 +0000

One step at a time Jeff. Removing the water consumption sounds to me like a good step in the right direction. Besides, we’re not talking about the source of the base fuel, but the process of converting it into Biodiesel. So whatever the base fuel, the process has now been improved. Of course, I should probably keep quiet, as I don’t know much about the whole processes.

By: Jeff

Jeff — Thu, 10 Apr 2008 15:51:16 +0000

Apparently they have not heard the news that Biodiesel is not a net positive energy source. Perfecting cellulose based biodiesel would be better news.