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General Motors announced today it would be entering into a strategic relationship with Mascoma Corp., a second-generation biofuel company with the technology to produce cellulosic ethanol from non-food sources via a single-step biochemical conversion.
The undisclosed equity share aims to contribute to joint research and development along with technology exchange, plant siting, and rapid commercialization of cellulosic ethanol technology and infrastructure. This is GM’s second investment in a cellulosic ethanol company, after announcing partnership with Coskata back in January.
Most of us are at least vaguely familiar with biodiesel, but how much do we really know? While biodiesel is easily the most popular alternative fuel available, it’s commonly misunderstood or misrepresented by inaccurate information. Since the most frequent question I get is, “So what exactly is biodiesel, anyway?“, I decided to write a tome covering all the basics—a one stop shop for all your biodiesel- related questions.
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:
Farmers in Northern Queensland, Australia, are investigating another approach to producing renewable fuel: growing diesel trees. As weird as that sounds, it’s real, and it isn’t a scientific breakthrough. We’ve actually known about the trees for over 300 years.
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.
In January, Scientific American writers unleashed an ambitious plan to halt global warming, eliminate our dependence on petroleum and the substantial trade deficit, boost the economy and create 3 million jobs, and brighten the dismal forecasts for the mid twenty-first century.
The plan is conceptually simple but would be substantial to implement:
- Construct a 30,000 square mile array of solar panels in the Southwest,
- along with concentrated solar power arrays and,
- a massive direct-current power transmission backbone to distribute electricity throughout the country.
- Excess power produced by the photovoltaic arrays would be distributed and stored as compressed air in below-ground caverns.
Development of such a system could provide almost three-quarters of the nation’s electricity by 2050.
It just looks like a pile of trash to most of us, but a new cellulosic ethanol facility may start making a renewable fuel from cardboard and other wood wastes. See the story here.
Photo Credit
The first commercial cellulosic ethanol facility to convert waste wood materials into a renewable fuel went online last month near Upton, Wyoming. After 6 years of development, KL Process Design Group, in conjunction with the South Dakota School of Mines and Technology, has produced a proprietary enzymatic method to break down wood and waste materials, such as cardboard and paper:
KL’s cellulosic ethanol plant is converting waste wood into a renewable fuel. “It is now possible to economically convert discarded wood into a clean burning, sustainable alternate motor fuel” said Randy Kramer, president of KL Process Design Group, a design firm that has been working in corn ethanol. “We’re proud of what this small company has accomplished, and believe that our design will be a cornerstone from which we can build our country’s renewable fuel infrastructure providing a better source of motor fuel, starting today.”
The press release makes no mention of production volumes or plans for expansion (I’m currently contacting KL about this), but the company could be the first to capitalize on the massive potential of cellulosic ethanol, namely, making fuel from waste products (see earlier post).
A University of Minnesota study found that using higher blends of ethanol (20%) blended into gasoline did not cause damage or cause performance problems when used in standard gasoline engines.
Over half the gasoline sold in the US is already blended with 10% ethanol (E10), but higher blends were thought to run the risk of causing engine damage. Higher blends of ethanol, up to 85% (E85), will only work properly in engines converted to accept the fuel.
Using 40 pairs of vehicles commonly found on American roads, a year-long research effort found that increasing ethanol blends from 10 percent (E10) to 20 percent (E20) in a gallon of gasoline provided an effective fuel across a range of tests focusing on driveability and materials compatibility.
The first part of this guide should give you some good resources for finding biodiesel at home and on the road. But don’t think you have to rely on retail biodiesel to get by. Homemade (aka “homebrew”) biodiesel may be available in your area, or you may be inclined to make your own.
While fuel quality obtained by this method can vary considerably, it’s still possible (even likely) to get fuel that meets national standards. That being said, you may have to get your hands dirty, and this will require a bit more research than finding a local biodiesel pump.
Options 1-3 of this guide are located here.
4. Biodiesel Coops: Discount Fuel At A Price
Another option for the intrepid is to join hands with other biodiesel enthusiasts and participate in making the fuel yourself. Biodiesel co-ops pool resources, equipment, and know-how, and may be the best way to learn to make biodiesel. While you don’t necessarily have to get your hands dirty to participate in a co-op, it can be satisfying work, builds community, and lies at the heart of the biodiesel movement.
Looking to find a source of biodiesel? Perhaps you followed my previous post, 7 Steps To Buying A Diesel, or maybe you already have a vehicle and feel it’s time to boycott OPEC oil. Either way, this guide will help you figure out how to get from A to B exclusively on biodiesel. Part II (options 4-6) of this post can be found here.
Remember that biodiesel can be used in any diesel engine (warranty issues aside) without modification. The only conversion necessary is where you decide to fill up, and that’s what this guide is intended to supplement. One caveat: be advised that biodiesel use can be tricky in cold weather, and depending on location and season you may have to drop to a 50% or even 20% biodiesel blend (more on that later). Without further ado:
1. At Home: Find Biodiesel At Retail Gas Stations
Without your knowledge, a local retail station may already have converted one of their pumps to some blend of biodiesel. The most common blend is B20 (20% biodiesel, 80% diesel), but don’t be surprised to see “biodiesel stations” with a lowly 5% blend (B5). (Stations now commonly offer B5 to confer lubricity lost by the introduction of Ultra Low Sulfur Diesel - ULSD.)
If you’re lucky, you may even find a B100 pump nearby, but there are other ways to get pure (aka neat) biodiesel (see below). You can find a list of retail biodiesel stations at both the National Biodiesel Board’s website, and NearBio.com:
Congress and the president have spoken: ethanol is America’s new renewable fuel.
Yesterday, President Bush signed into law energy bill H.R.6, which establishes a new renewable fuel standard in the United States (see Max’s earlier post). But not everyone is applauding Capitol Hill. James B. Meigs, editor-in-chief of Popular Mechanics, has railed against ethanol in an op-ed to be published in the magazine’s February 2008 issue. As Meigs points out, Washington is looking for quick fixes, not long-term solutions:
It’s great that our politicians have discovered the need for new energy technologies. But it appears that Washington is determined to put its money—our money—on the wrong horse. Right now, researchers are studying a host of energy solutions, including hydrogen, high-mileage diesel, plug-in hybrids, radical reductions in vehicle weight and cellulosic ethanol (made from cornstalks, switchgrass or other nonfood crops). It is far too soon to say which of these holds the most promise. But, instead of promoting experimentation and competition to find the best solutions, politicians seem ready to declare ethanol the winner. As a result, our nation could wind up with the worst of both worlds: an “alternative” energy that is enormously expensive yet barely saves a gallon of oil.
