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EcoWorld Commentary
Ed Ring,
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Maps & Information

Today is Saturday July 04, 2009

Biofuel

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Researchers at the University of Minnesota reported recently that the production of ethanol fuelstocks may consume as much as three times more water than previously thought, depending on where they’re grown. They found that ethanol fuelstock grown in Iowa uses the least water — about 6 gallons of water for each gallon of ethanol. While fuelstock grown in Minnesota uses about 19 gallons of water per gallon of ethanol. And that’s just on the farm. The researchers found that total water use in the production of a single gallon of ethanol is up to 2,100 gallons of water — from farm to fuel pump — depending on the regional irrigation practice in growing corn. Although a dozen states in the Corn Belt consume less...


Pamela Contag is a microbiologist who's as comfortable in the lab as she is in the boardroom, dealing with the business of running a company. She has plenty of experience there, having helped found two startups: Cobalt Technologies and Xenogen. She also sits on the Department of Energy's Biomass Advisory Board. Contag is an astute observer of the biofuels industry. With much of the discussion today focused on second-generation biofuels, she points out that it's still critical for people not to mix up biofuel feedstocks with human foodstocks. That sure spelled a lot of trouble during the first-generation corn-ethanol buildout, which alarmed the public and still dampens enthusiasm for the biofuels market. Contag says there's a list of...


We live in a world of technology. Our kids grow up with computers as one of their best friends. They even mature together: The kids who grow up expect their systems to grow with them, which means that old computers are constantly replaced with new ones. Technology is evolving faster than we ever thought possible and I doubt that anyone will be surprised when machines become almost independent of their creators. The biggest problem with self sustaining machinery is fuel. Just like we consume countless varieties of foods to keep us going throughout the day, a machine's hunger pangs are generally alleviated with gas, electricity and batteries. The ideal machine, however, should be able to...


One of the keys to achieving the next step in commercializing renewable transportation fuels is to have a refining technology that can utilize a variety of biomass feedstocks. In the case of cellulosic ethanol, there are a lot of competing technologies out there, but not very many that can operate using virtually any cellulosic feedstock. Coskata is an Illinois startup whose technology appears to have this flexibility. Coskata recently closed a $40 million private equity financing as reported earlier this month by Private Equity Hub in their report "Blackstone Backs Cellulosic Ethanol Startup Coskata." According to Coskata's Chief Marketing Officer, Wes Bolsen, "what this round does is get us through construction of our commercial...


The Indian government has welcomed biofuels with open arms. Faced with a rapidly growing economy, the world's second-largest population and an eye-watering fuel import bill, finding a renewable domestic power source has become a top priority. The country's recently-revised national biofuel policy, announced in September 2008, sets out the government's intentions in black-and-white: to produce 20 per cent of the country's diesel from crops by 2017, primarily from plantations of jatropha (Jatropha curcas). This means that the oilseed-bearing shrub, already introduced in some states, needs to be planted on an additional 14 million hectares of the country's so-called 'wasteland'. This has ignited fierce debate:...


Rugged microbes equipped with a unique set of survival skills find high-temperature and acidic conditions a welcome home. And scientists have a peculiar fondness for these "extremeophiles," freaks of nature that live outside the boundaries of normal existence. These are bugs that can grow in the harshest of conditions, from sulphuric acid to high-salt environments. Part of the reason scientists are interested is extremeophiles potential to be put to work to produce next-generation cellulosic-based biofuels. Sandia's Rajat Sapra examines assays for the screening of engineered enzymes. (Photo: Sandia National Labs) How? These microbes can perform feats that bioengineers till now only...



Mid-level ethanol blends such as E12, E15, E20 and even as high as E40 have garnered a lot of attention lately. Mainly because ethanol producers want a quick and easy way to soak up a surplus of ethanol that will soon reach the saturation point for the current supply in the marketplace. Under current federal law, conventional fuel cannot contain more than 10 percent ethanol, known as E10, but proponents for higher mid-level blends would like to replace the current gasoline mixture with higher levels of ethanol, which would change the fuel used in vehicles and small engines. GM's concerns with higher ethanol blends include the capability of our engines and fuel systems to handle them...


Today the American Coalition for Ethanol (ACE), along with the Ethanol Promotion & Information Council (EPIC) presented a webinar that dealt with several of the key challenges facing ethanol retailers as they begin to offer increasing quantities of E85 (85% ethanol). Although the presentation was targeted at gasoline retailers, the information was of interest to anyone watching the emergence of ethanol in the U.S. as a significant transportation fuel. The presenter was Ron Lamberty, VP of Market Development for ACE, and himself an owner of gasoline retail establishments. Currently there are just over 1,500 retail refueling stations offering E85 ethanol (85% ethanol), not quite 1% of the 160,000 total stations throughout the U.S. About 70% of the retail...


Concentrated acid hydrolysis will transform virtually any cellulosic feed into fermentable sugars. BlueFire Ethanol, located in Irvine, California, has developed an advanced, proprietary version of this process which they believe could make them the first company to deploy a commercial scale cellulose to ethanol refinery that generates a return to its investors. The process relies on reusing more than 96% of the sulphuric acid that is used to initially break down the cellulose from the lignin, as well as using the lignin to provide up to 70% of the total plant's energy requirements. Although from the diagram (below) it doesn't appear BlueFire's process is simple, in reality it is one of...


Most of us have heard about the "Hydrogen Highway," that mythical roadway which, along with bullet trains and bridges to nowhere, may actually get built someday at a staggering expense to the taxpayer (to be fair - we're as hopeful as anyone the formidable technological barriers to using hydrogen as a transportation fuel are eventually overcome).  But meanwhile, as of last week, the first ethanol highway in the United States is open for business - I65, stretching from the Great Lakes to the Gulf of Mexico.  Corn ethanol is a viable transportation fuel today, not someday, and implementation of this ethanol highway, the first of many, is an exercise in practicality, not pipe dreams. For...


When analysing the potential of biofuel, one of the prevailing questions is whether or not there is sufficient land on earth to deliver adequate food if substantial percentages of land are allocated to biofuel crops. In our report earlier this year "Cellulosic Ethanol" it is clear, in the U.S. at least, that while substantial quantities of ethanol per year may eventually be refined from municipal waste streams, crop residue, winter cover crops, and forest thinning, in order to completely replace petroleum-based transportation fuels, dedicated energy crops will also be necessary. So is there enough land? One of the key variables often overlooked when asking this question regards yield per acre - not only...


Coal, a globally used fuel source, is also the reason behind most of the world's carbon dioxide emissions. GreatPoint Energy has developed an alternative method to getting the energy from coal with reduced manufacturing cost, almost no emissions, and less complicated production steps. Traditional methane production facilities house numerous components: First, coal is burned into syngas (a carbon monoxide and hydrogen mix) inside a gasifier at 2,500F. Other machines feed oxygen into the gasifies to facilitate the process. The resulting syngas is then placed into a reactor where it is transformed into methane. GreatPoint facilities do not require the extra step in the reactor since the whole production to...


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