19 January 2016, Science Daily, One-stop shop for biofuels. First high-gravity one-pot process for producing cellulosic ethanol developed. The falling price of gasoline at the pumps may warm the hearts of consumers but it chills the souls of scientists who recognize that humankind must curtail the burning of fossil fuels to reduce the threat of climate change. Biofuels can help mitigate climate change and provide us with a sustainable source of transportation energy if yields and production costs are economically competitive. A major step towards achieving this goal has been achieved by researchers with the U.S. Department of Energy (DOE)’s Joint BioEnergy Institute (JBEI). Led by Seema Singh and Blake Simmons, JBEI researchers have developed a “high-gravity” one-pot process for producing ethanol from cellulosic biomass that gives unprecedented yields while minimizing water use and waste disposal. The process utilizes a combination of ionic liquid pretreatment, enzymatic saccharification, and yeast fermentation for the production of concentrated fermentable sugars that result in high-titer cellulosic ethanol. “High gravity” means high biomass loading — the higher the biomass loading, the lower the costs for converting it to fuels. Read More here
Tag Archives: New Technology
5 November 2015, Climate News Network, ‘Dragon water’ could power the planet. The quest is on to develop new technology that can tap the intense heat deep below the Earth’s surface and supply the whole world with electricity. An ambitious project is being launched to drill deep into the Earth’s crust to harness super-heated “dragon water” that would generate massive quantities of renewable energy. Unlike traditional geo-thermal heat, which exploits hot rocks to produce steam for turbines, this project goes far deeper − to where the pressure and temperature are huge but the potential benefits are 10 times as great. There is an infinite amount of energy beneath the Earth’s crust. The problem is the technology to harness it. The European Union (EU) believes that deep drilling techniques developed by the oil industry can be adapted to extract the energy. It has earmarked €15.6 million for a project in which potentially the world’s most energy-rich geothermal well will be drilled at Larderello in Tuscany, Italy. Formidable challenge The technical challenges are formidable because of the intense heat and pressure that will turn steel brittle and wreck electrical equipment, so the plan is to develop engineering tools that can withstand the conditions. Iceland, which already exploits traditional geo-thermal energy successfully, has tried and failed to harness super-heated rock. But it has not given up, and a second attempt is being planned. The EU believes using oil company expertise in drilling deep wells will be the key to success. Read More here
April 21, 2015, NASA’s Jet Propulsion Laboratory: Caltech student fathers breakthrough in green chemistry. ….The baby in this metaphor is a catalyst that, unlike its cousins that pervade modern industry, is based not on precious metals like gold and platinum, but rather on something you can get out of a banana: potassium. The father (or perhaps more accurately if we ignore the gender problem, the mother) is a Caltech grad student named Anton Toutov, who reports that the delivery was long and difficult….This new technology is already capable of manufacturing chemicals used in pharmaceuticals, agriculture and cosmetics in a much more environmentally friendly way than traditional methods. The catalyst requires little or no processing with petrochemicals and operates at much lower temperatures than standard catalytic methods, both of which keep its carbon footprint tiny. It can reduce air pollution from certain kinds of transportation fuels and, unlike the precious-metal processes it replaces, it produces no toxic waste. But like a baby, its ultimate accomplishments may be yet to come. Read More here