Ethanol from yeast fermentation:A Breakthrough for hydrogen power
A team of scientists, led by a professor from the University of Aberdeen, have achieved a leap forward in the process of using hydrogen to provide clean electricity.Using a catalyst, they have converted ethanol fermented from biofuels into hydrogen.
The process developed by scientists in Aberdeen to produce hydrogen for fuel cells from biofuels starts with fermentation.Crops are fermented using yeast, producing ethanol and water.Then a catalyst made using the metals rhodium and palladium is added to the ethanol and water, at temperatures of about 500C.This converts the ethanol and water into hydrogen and carbon dioxide.
Although this has been done before, it had never been effective as it had never been achieved without producing waste products, such as carbon monoxide, which is poisonous. It took the team of scientists from across the world, led by Prof Idriss, more than ten years to hone the technique.The hydrogen could be used to power fuel cells, which can provide clean electricity for vehicles, homes and even large buildings.
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The process developed by scientists in Aberdeen to produce hydrogen for fuel cells from biofuels starts with fermentation.Crops are fermented using yeast, producing ethanol and water.Then a catalyst made using the metals rhodium and palladium is added to the ethanol and water, at temperatures of about 500C.This converts the ethanol and water into hydrogen and carbon dioxide.
Although this has been done before, it had never been effective as it had never been achieved without producing waste products, such as carbon monoxide, which is poisonous. It took the team of scientists from across the world, led by Prof Idriss, more than ten years to hone the technique.The hydrogen could be used to power fuel cells, which can provide clean electricity for vehicles, homes and even large buildings.
see more
Labels: electricity, ethanol, fuel-cells, hydrogen
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