Comments for Biodiesel Fuel Education Program Wed, 14 Nov 2012 19:20:28 +0000 hourly 1 Comment on Forget Generational Biofuels by Biodiesel Education Wed, 14 Nov 2012 19:20:28 +0000 Posted by Jeff Rola, Go Bio Co | November 11, 2010 | 15:35:39
I agree with the initial proposition that categorizing biofuels as generational is a poor qualifier. But so is Mr. Van Gerpen’s replacement.
The diversity of feed stocks and biofuel production processes do not fit the petroleum model.
The other problem I have with this train of thought is that we keep treating biofuels as stand-alone products, where they are normally by-products that can be developed in context with other food and fiber industries.
Corn ethanol by itself is a very poor biofuel compared to other more efficient and productive processes. Corn ethanol as a by-product integrated with a livestock feeding operation however starts to make sense.
Maybe the level of integration that biofuels have achieved in local economies could be your qualifier.

Posted by Atul Deshmane | November 11, 2010 | 20:58:02
I agree with this proposed approach. The problem is that secondary and tertiary technologies require lots of investment and need to sell themselves as better than primary.

Posted by jacko | December 04, 2010 | 11:18:19
There is even a A number of companies are pursuing advanced “bio-chemical” and “thermo-chemical” processes that produce “drop in” fuels like “green gasoline,” “green diesel,” and “green aviation fuel “fourth-generation biofuels,” some have referred to it as the biofuels created from processes other than first generation ethanol and biodiesel, second generation cellulosic ethanol, and third generation algae biofuel. Some fourth generation technology pathways include: pyrolysis, gasification, upgrading, solar-to-fuel, and genetic manipulation of organisms to secrete hydrocarbons

Posted by Tony Prol | February 10, 2011 | 08:38:53
I believe that It must be a good choice for us, we have to make choices about how we want to allocate the costs of different fuel options. It seems clear we have opted to maintain our mobility. Now the question is whether the economic, environmental and societal.

Posted by Gerhard Knothe | February 16, 2011 | 11:13:49
These are some comments I made in a recent publication (“Biodiesel and Renewable Diesel: A Comparison”, Progress in Energy and Combustion Science, Vol. 36, p. 364-373, 2010) on the issue of “generation” terminology.

“More recently, the term ‘‘biodiesel’’ has sometimes been used in the compound phrase ‘second-generation biodiesel’’, usually in conjunction with biodiesel derived from ‘alternative’’ feedstocks such as inedible oils or algae. However, this marketing-slogan-like term is misleading and should not be used as it implies that biodiesel derived from such feedstocks may have superior fuel properties, which is not necessarily the case. For example, biodiesel derived from jatropha contains in the range of 20–25% C16 and C18 saturated fatty acid methyl esters and thus possesses poorer cold flow properties than biodiesel derived from soybean or rapeseed )(canola) oil, which contain lower amounts of saturated esters. Virtually no literature reports exist on the fuel properties of algae-derived biodiesel fuels. Therefore terms such as ‘‘algae-derived biodiesel’’ or ‘‘jatropha biodiesel’’ appear preferable. Furthermore, the phrase ‘‘second-generation biodiesel’’ has also been applied to petrodiesel-like fuels derived from biological feedstocks such as lipids and in this case it is even more misleading because the resulting fuel does not even meet the definition of biodiesel as mono-alkyl esters. It may be noted that the terms ‘‘first-generation’’ and ‘‘second-generation’’ biofuels (also applied to fuels other than biodiesel such as ethanol), although not or only ill-defined, have been used in a report by the Food and Agriculture Organization (FAO) of the United Nations [9] but apparently fuel properties were not taken into consideration in the preparation of this report. Furthermore, both biodiesel and renewable diesel are not new concepts as discussed briefly in the section on history and from that perspective also the ‘‘generation’’ terminology is misleading.”

Comment on Weird Feedstocks for Biofuels by Biodiesel Education Wed, 14 Nov 2012 19:18:21 +0000 Posted by Jeff Rola | April 05, 2011 | 11:54:02
Just as you can make ethanol from any sugar, you can make biodiesel from any fat. Where are the viable feedstocks that are cheap, plentiful and easily converted to ASTM certified fuel? Where are the co-products that mitigate the cost of refining oil for biodiesel production?I work with waste veg oil, and more often than not, it is more waste than oil. Looking for cost effective oil separation and wate disposal technology. Coffee grounds are intriguing, but what does it take to extract the 10% oil? and what does it cost to dispose of the remaining 90%?

I guess anything beyond stating the obvious is proprietary.

Posted by Tony | April 06, 2011 | 13:08:06
Coffee grounds make a great addition to your farm compost (soil amendment)!

Posted by nani | June 18, 2011 | 03:04:47
Hi I was reading through this article and was wondering if the biodiesel made from alternate feed stocks can actually be used in car engines.

Posted by Biodiesel Education | July 11, 2011 | 08:30:25
Yes, biodiesel made from any feedstock can be used in diesel engines. It is preferable if the biodiesel meets ASTM specifications.

Comment on Engines and Vehicles Used for Biodiesel Testing by Biodiesel Education Wed, 14 Nov 2012 19:15:58 +0000 Posted by Steve Gunther | April 16, 2012 | 14:28:47
When will your institution test Biodiesel blends on locomotive & marine diesel engines?

Posted by Biodiesel Education | May 08, 2012 | 15:10:45
The University of Idaho Biodiesel Education Program participated in the Washington State Ferries Environmental Program – Biodiesel Research and Demonstration Project in 2009. The report is available here:

In terms of railroads, the National Biodiesel Board is doing some work in this area, but it is my understanding that a final report has not yet been issued.

Here is an article from Biodiesel Magazine about railroad use of biodiesel: