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Sun, Water, CO2 And Algae: A Recipe For Biofuel?
Plant-based biofuels were initially hailed as the answer to all problems posed by traditional fossil fuels. Supply is unlimited and they are also neutral to emissions harmful to the environment also. But using plants has led to other problems, which a team of European scientists hopes to get around by using aquatic organisms to create fuels from the sun, carbon dioxide (CO2) and water. The nine-partner team behind the EU-funded project DIRECTFUEL (‘Direct biological conversion of solar energy to volatile hydrocarbon fuels by engineered cyanobacteria’) believes the answer could lie in aquatic organisms . The team is developing photosynthetic microorganisms able to catalyse the conversion of solar energy and CO2 into engine-ready fuels. Plant biomass is definitely cleaner than fossil fuels. However, the plants used to create fuel are frequently in competition with food crops , particularly in poorer countries, while cultivation of plants for biomass can also have a detrimental impact on neighbouring agricultural land. Plants also convert solar energy relatively slowly. The research by DIRECTFUEL’s team involves three key steps: enzyme discovery and engineering, metabolic engineering of cyanobacteria (a type of micro-algae) and design of the production process. The target fuels are non-toxic and have been shown to be compatible with combustion engines that have been slightly modified and even with normal ones. Central to the project is the construction of biochemical pathways not existing in nature for the synthesis of ethylene, ethane and propane. The team’s research has already increased understanding of the factors important for catalytic conversion by studying the mechanism of a candidate enzyme. The next step is to use enzyme engineering to program the enzymes to act on desired substrates. Work on targeted enzyme engineering at the biosynthesis of volatile alkanes is underway, and the team is now working to engineer the metabolism of the host organisms in order to enhance CO2 assimilation and thus increase yield. To be able to engineer the metabolism of cyanobacteria, the researchers needed to first understand and be able to predict which modifications in the biochemical pathways will have which impact on metabolism. To make this possible, the team is using a computational model developed by one of the DirectFuel partners. The model will also be improved and expanded during the project to boost its effectiveness in predictive engineering. In addition, a preliminary process layout has been prepared and a laboratory-scale photo-bioreactor constructed. Cultivation of the essential cyanobacteria can be carried out on land unsuitable for agriculture, and in enclosed containers that require no soil, thus eliminating any competition between land for food and fuel production. It will take time before the technology developed within DIRECTFUEL is on the market, but the eventual impact is likely to be considerable in the production of carbon-based fuels and chemicals. The research has already attracted interest from petroleum gas associations. The DIRECTFUEL project has received almost EUR 5 million in EU funding and runs from 2010 until 2014. It is coordinated by the University of Turku in Finland. Read more at: http://phys.org/news…iofuel.html#jCp Continue reading
Look To The Fundamentals In Emerging Markets
http://www.ft.com/cms/s/0/70d9b14c-14af-11e3-b3db-00144feabdc0.html#ixzz2fQfIJxI8 By Gary Mead Being a generalist in emerging markets is to be a mindless herd member – and the herd has no mind, but is just pushed by snapping dogs. So ponder the particularities of a place, an industry, a sector: there will be fantastic opportunities once the herd stays put. What lies behind the recent rout? Quantitative easing (QE) is the monetary policy drug of choice right now, and the threat of its withdrawal has already induced an ugly international bout of cold turkey in world markets. Princeton University’s Jean-Pierre Landau, a former Bank of France deputy governor, put it more diplomatically at last month’s Jackson Hole annual summit for central bankers. Accommodative monetary policy has averted one global financial crisis, but inadvertently produced another – capital markets’ anxiety over how soon and how fast QE might be unwound. Mr Landau was pessimistic about the level of central bank co-ordination necessary to get off this drug without pain: “The most likely scenario is that of progressive fragmentation of the international financial system.” Since December 2008 the US Federal Reserve has poured easy money into the US economy and, by extension, the global system, obedient to one of its mandates, getting America back to work. It has done this partly by keeping a tight lid on US overnight interbank lending rates, maintaining them in a range of 0-0.25 per cent. On top of that it has bought almost $2tn of longer-term US Treasury bonds. This vast QE, aided and abetted by similar (if smaller) schemes in Japan and the UK, has had the inevitable consequence of dragging thousands of billions of dollars into emerging markets, in the desperate quest for yield. Those days are not quite over – but the smartest money is now trying to figure out when US interest rates will start to rise and dispel the Fed’s opiate-induced calm. For some, this is creating rising hysteria; others are exhorting us to calm down because this is just a return to the status quo ante bellum. The canniest, of course, are on the watch for fresh opportunities, and trying to ignore scaremongering headlines in normally reputable media. What are the hard facts? On May 22 the Fed’s chairman, Ben Bernanke, said he might start slowing bond purchases – so-called “tapering” – if the US economy continues to improve. Almost immediately the MSCI Asia-Pacific Excluding Japan Index slipped 14 per cent. Around $44bn has been withdrawn from emerging-market stock and bond funds globally since the end of May, according to the data provider EPFR Global. This retreat from emerging markets now appears to be a fixed trend. According to the authoritative latest (June 2013) Capital Flows to Emerging Market Economies report produced by Felix Huefner and his colleagues at the Institute of International Finance, private capital inflows to emerging markets will total $1.145tn in 2013, $36bn less than in 2012. Next year these flows will fall even further, to $1.112tn, the lowest level since 2009. But that is still a wall of money and it might be seen as a return to normality rather than outright collapse. As the west went into deep recession, cut rates and printed money, investors fled, looking for better returns wherever they could, paying scant attention to the fundamentals of the economies of several big emerging markets. Now that the west is in better health, those often weak fundamentals have reminded many investors why they had not previously entered them. India and Indonesia, the two Asian nations with the region’s biggest external funding requirements for their current-account deficits, have already stumbled. The Indian rupee fell to an all-time low in July after the country’s current account deficit widened to an unprecedented $87.8bn in the fiscal year that ended in March. Also in July, Indonesia’s current-account deficit climbed to a record, economic growth slowed and inflation geared up. Overall, more than $1tn has been wiped from equities in emerging markets in the last few weeks. The hope that a slower-growing developed world was smoothly converging with a faster-growing emerging world is, if not over, then certainly delayed. For anyone exposed to emerging markets as a whole, standing in the way of the crowd heading for the exit makes little sense. Too many countries in the emerging world face serious structural problems that were, perhaps justifiably, ignored when the developed world’s economies were being put through the wringer. It is difficult to ignore incipient revolution in Egypt, appalling civil war in Syria, bitter political divisions in Turkey and rampant corruption in India when the west appears to be on the mend. But the key to all this is an individual country’s balance of payments. Trading on the basis of “is this a risk-on or a risk-off day?” is unwise. Trading on the basis of the underlying strengths or weaknesses of a nation’s economy might be duller but is more rational. It is easy to get distracted by newsflow but look out for economic fundamentals. Continue reading
FAA Creates Center Of Excellence For Biobased Jet Fuel
Taylor Scott International News Taylor Scott International Taylor Scott International, Taylor Scott Continue reading