| 单词 | butanol |
| 例句 | After rinsing to remove fatty residues, they boiled the powdered husks in a mixture of butanol and acid, a standard lignin extraction method called the butanosolv process. Cocoa pods -- a source of chocolate, and potentially, flame retardants 2023-10-17T04:00:00Z Jewett expects the same process could make the bacteria produce a variety of other chemicals, such as butanol, used in varnishes, and propanediol, found in cosmetics. Microbes convert industrial waste gases into commodity chemicals 2022-02-21T05:00:00Z The chemical inside, butanol, did not spill, but diesel fuel from the train did, gathering in a low-lying area. The health dangers don’t stop with a hurricane’s churning. They can get worse. 2018-09-17T04:00:00Z In the First World War, for example, German naval blockades caused a shortage of acetone and butanol, both essential for munitions. History: Ingenious solutions sparked by a crisis : Nature : Nature Research 2017-08-15T04:00:00Z Tests revealed they were made with the industrial solvent isopropanol and butanol, contained in paint remover. Spelling mistake exposes fake drink 2014-12-31T05:00:00Z Once they are extracted, the sugars are fermented into an alcohol -- like ethanol or butanol -- that can then be used as a fuel. New Enzyme May Lead to Cheaper Biofuels 2013-08-16T15:15:00.557Z An alternative route for the production of alcohols, including butanol, is the Ehrlich, or 2-keto-acid, pathway. Microbial engineering for the production of advanced biofuels 2012-08-15T17:22:19.783Z Gevo, which is locked in a patent lawsuit with Butamax, expects to start up a converted ethanol plant next month that will produce butanol using corn cellulose as a feedstock. New Facilities Spotlight Next-Generation Biofuels 2012-05-21T17:15:08.190Z "If one speaks with combustion engineers, then they will tell you that the simplest real fuel is butanol," says chemist Andrew Bocarsly of Princeton University, who is not involved in the electrofuel project. Fossil Free: Microbe Helps Convert Solar Power to Liquid Fuel 2012-03-30T14:45:00.220Z First, he wanted one that produced butanol directly from cellulose in one step. Tackling the Riddle of Putting a Zebra in Your Tank 2012-01-09T22:42:37Z Most of the current efforts in second-generation biofuel production focus on ethanol, with furans and butanol at earlier stages of development. Lignocellulose: A chewy problem 2011-06-22T21:50:42.223Z Many of the advanced biofuels in the pipeline are stuck in an expensive purgatory, with only a few technologies for higher alcohols, butanol and isobutanol reaching the later phases of commercialization. Microbial engineering for the production of advanced biofuels 2012-08-15T17:22:19.783Z Some of the genes are from a strain of the bacterium Clostridium that naturally produces butanol. Fuel options: The ideal biofuel 2011-06-22T21:50:40.910Z Liao's discovery of unimagined routes to butanol shows that this is a “pretty exciting time” for advanced biofuels R&D, says Mielenz. Introduction: Next generation biofuels 2011-06-22T21:50:38.427Z It made butanol; acetone, an industrial solvent; hydrogen; and carbon dioxide. Tackling the Riddle of Putting a Zebra in Your Tank 2012-01-09T22:42:37Z And if this sugar can be extracted, it can be fermented to make ethanol or the longer-chain alcohol butanol. Lignocellulose: A chewy problem 2011-06-22T21:50:42.223Z However, this barrier to high butanol production was broken in E. coli by using a synthetic butanol pathway that combines enzymes from four different organisms chosen for their biochemical characteristics. Microbial engineering for the production of advanced biofuels 2012-08-15T17:22:19.783Z When the cell determines that there's too much butanol, the same enzymes that created the butanol start to break it down. Fuel options: The ideal biofuel 2011-06-22T21:50:40.910Z And researchers at the University of California, Berkeley, reported last week that they were producing butanol by using a bacterium that was fed glucose. Green: Ethanol Plant Is Switching to Butanol 2011-03-10T17:10:20Z When the concentration of butanol in the container reaches 17 grams per liter, he said, the bacteria cells die. Tackling the Riddle of Putting a Zebra in Your Tank 2012-01-09T22:42:37Z With the whisky waste butanol, no new crops are necessary. Turning Whisky Into Biofuel 2010-08-20T10:00:00Z It is based on a 100-year-old process that was originally developed to produce butanol and acetone by fermenting sugar. Scottish scientists develop whisky biofuel 2010-08-17T16:01:00Z Like ethanol, butanol would probably enter the market as a petrol blend. Fuel options: The ideal biofuel 2011-06-22T21:50:40.910Z Mr. Gruber said that because of the product’s flexibility, he expects the company to do well selling butanol for conversion to fuel when fuel prices were high, or for other chemical uses. Green: Ethanol Plant Is Switching to Butanol 2011-03-10T17:10:20Z Of the 40 cultured strains, Dr. Mullin’s team found at least 14 that made butanol. Tackling the Riddle of Putting a Zebra in Your Tank 2012-01-09T22:42:37Z From there, it's a relatively easy and well-known process to turn Acetyl Co-A into a fuel like butanol or ethanol. Coaxing Fuel From Extreme Bugs 2010-05-14T20:50:00Z Some proponents even say that unmodified car engines could work on butanol alone. Fuel options: The ideal biofuel 2011-06-22T21:50:40.910Z Adding two more carbon atoms and four hydrogen atoms creates butanol, which is less corrosive and packs much more punch. Fuel options: The ideal biofuel 2011-06-22T21:50:40.910Z Their new bacterium produces 10 times as much butanol as the bacteria now in industrial use, she said. Green: Ethanol Plant Is Switching to Butanol 2011-03-10T17:10:20Z “You can reach much higher levels of renewables in fuels if you go to these longer-chain molecules,” says Michelle Chang, a chemist at the University of California, Berkeley who has induced microbes to produce butanol. Fuel options: The ideal biofuel 2011-06-22T21:50:40.910Z Ultimately, butanol might also be cheaper to make than ethanol. Fuel options: The ideal biofuel 2011-06-22T21:50:40.910Z But butanol and water don't mix, so they can be separated by less energy-intensive processes. Fuel options: The ideal biofuel 2011-06-22T21:50:40.910Z With its four carbons, butanol has about 90 of the energy of petrol, which is a mixture of molecules with five to eight carbon atoms. Fuel options: The ideal biofuel 2011-06-22T21:50:40.910Z Although there are organisms that naturally produce butanol and higher alcohols, most of them make those alcohols in tiny quantities, Chang says. Fuel options: The ideal biofuel 2011-06-22T21:50:40.910Z Chang recently found a way to boost butanol production by tenfold, at least in the laboratory. Fuel options: The ideal biofuel 2011-06-22T21:50:40.910Z Similar attempts by other researchers have therefore suffered from low productivity, yielding about half a gram of butanol per litre of glucose solution. Fuel options: The ideal biofuel 2011-06-22T21:50:40.910Z Those genes encode slightly different versions of the enzymes that control the fermentation — enzymes that are less likely to break down butanol. Fuel options: The ideal biofuel 2011-06-22T21:50:40.910Z Today's petrol blends generally don't exceed 10% ethanol, but it's easy to imagine a fuel blend containing 50–70 of the higher energy, less corrosive alcohol butanol. Fuel options: The ideal biofuel 2011-06-22T21:50:40.910Z Instead of pressing E. coli into service, Liao altered a pathway in so that the bacterium produced the branched version of butanol — isobutanol. Fuel options: The ideal biofuel 2011-06-22T21:50:40.910Z Isobutanol has the same chemical formula as butanol but a different structure that improves its engine performance and makes it easier to synthesize into other chemicals. Fuel options: The ideal biofuel 2011-06-22T21:50:40.910Z Several companies are trying to commercialize butanol or isobutanol production from biomass. Fuel options: The ideal biofuel 2011-06-22T21:50:40.910Z |
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