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Scientists Find New Process to Yield Plentiful Biofuel from Waste
"If we can increase this 'activated' CO adsorption on the surface of the catalyst, it improves the opportunity for the formation of ethanol molecules. And if we can increase the amount of surface area for the catalyst, we can increase the amount of ethanol produced," Lin said.
Lin and his colleagues looked at using a metal alloy as the catalyst.
For increasing the surface area, the researchers used nano-scale catalyst particles dispersed widely within the structure of mesoporous nanospheres, tiny sponge-like balls with thousands of channels running through them.
The total surface area of the dispersed catalyst nanoparticles was roughly 100 times greater than the surface area one could get with the same quantity of catalyst material in larger, macro-scale particles.
Robert Brown, the director of ISU's Center for Sustainable Environmental Technologies (CSET), said: "Gasification to ethanol has received increasing attention as an attractive approach to reaching the Federal Renewable Fuel Standard of 36 billion gallons of biofuel."
Lin added: "The great thing about using syngas to produce ethanol is that it expands the kinds of materials that can be converted into fuels. You can use the waste product from the distilling process or any number of other sources of biomass, such as switchgrass or wood pulp. Basically any carbon-based material can be converted into syngas. And once we have syngas, we can turn that into ethanol."
Source-ANI
RAS/L
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