Scania’s Ethanol Diesel-Engine, Runs On Biodiesel Too



After covering 22 of the most popular myths about biodiesel, I realized I’d only given lip service to a major issue: increasing food prices. In Myth #2, I mentioned that the goal of biodiesel production is to move away from food-based feedstocks.
But until that happens, the question remains: if I use biodiesel made from soybeans right now, am I contributing to the larger problem of increasing commodity prices and starving poor people? Read the rest of this entry »

It’s been exactly one year since I published the first Biodiesel Mythbuster on GreenOptions.com, and its popularity made a sequel inevitable. By way of a short introduction, here’s what I wrote last year: Read the rest of this entry »

A Wisconsin cheese producer, Joe Van Groll of Stratford, Wisconsin, has a way with whey.
For nearly a decade, Van Groll experimented using the waste product of cheese manufacturing, whey permeate, to manufacture ethanol. During the past four years, he’s been doing just that, and believes his process can produce ethanol for less than $1 a gallon.
Would I put you on? It’s true, algae-based biofuels are being produced from CO2 emitted from smokstacks.It’s happening through a company called GreenFuel, headquartered in Cambridge, Mass.
GreenFuel has been partnering with Arizona Public Service Company to create biofuels from algae grown using carbon dioxide (CO2) emissions from a power plant. The companies successfully grew algae at APS’ Redhawk natural gas power plant in Arizona, and is moving their tests to a coal-fired power plant at Farmington, NM.
According to a release from APS, algae at Redhawk grew at levels 37 times higher than corn and 140 times higher than soybeans, which are now used to create biofuels. Read the rest of this entry »

As Treehugger reported earlier this week, farmers in the more tropical region Queensland purchased about 20,000 Brazilian diesel trees, or Copaifera langsdorfii, with the intention of having a living oil-mine in 15 years. According to Purdue University, a 100 acre plot of trees could produce about 25 barrels of oil per year.
PetroSun has announced it will begin operation of its commercial algae-to-biofuels facility on April 1st, 2008.“Our business model has been focused on proving the commercial feasibility of the firms’ algae-to-biofuels technology during the past eighteen months. Whether we have arrived at this point in time by a superior technological approach, sheer luck or a redneck can-do attitude, the fact remains that microalgae can outperform the current feedstocks utilized for conversion to biodiesel and ethanol, yet do not impact the consumable food markets or fresh water resources.”

This was the big story of the month: Researchers at InnovaTek have developed hand-sized microreactors that can turn biodiesel (or any other liquid fuel) into a hydrogen stream for use in an adjoining fuel-cell. Chevron has already invested $500,000 to develop hydrogen refueling stations for fuel-cell powered cars. InnovaTek hopes to eventually install the microreactors in vehicles, which would allow cars to fill up on biodiesel but be powered by a much more efficient and even cleaner-burning electric drivetrain. See the full story here.

That’s InnovaTek’s eventual goal anyway: having their technology built into cars, where energy-dense renewable fuels could be converted into motion, bypassing combustion and the production of exhaust gases entirely, and powering a much more efficient engine. (Imagine for a moment, filling up on biodiesel and driving off to the exhaust-free hum of an electric motor.) InnovaTek plans on commercially licensing the microreactors by 2009.
Is it going to come down to a choice between eating or driving? Is that what are future holds? If it does, it looks like the driving contingent may win (or in other words many others will lose…or starve). That’s a distorted overview of last night’s EcoNow presentation that highlighted the current and future state of biofuel. Actually I like the term that one of the speakers Eric Holt-Giménez used - “agrofuels” rather than “biofuels” because “bio” means “life” which certainly doesn’t represent these alt fuels.
The event held in Berkeley (where else?) gave Tad Patzek, Professor of Geoengineering at UC Berkeley, Miguel Altieri, Professor of Agroecology at UC Berkeley, Eric Holt-Giménez, Executive Director of Food First/Institute for Food and Development Policy, and Judith Mayer, Project Coordinator of the Borneo Project a chance to educate or frighten the audience into what’s happening with agrofuels, whether it’s ethanol, B20, or something else that makes our cars go.