Author Topic: Scientists use egg whites for clean energy production  (Read 288 times)

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rangerrebew

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Scientists use egg whites for clean energy production
« on: February 15, 2018, 12:37:43 pm »
Scientists use egg whites for clean energy production
February 15, 2018, Osaka City University
 
Researchers from the Osaka City University in Japan have developed a way to use egg whites as a substrate to produce a carbon-free fuel. They published their results on February 2nd in Applied Catalysis B.

"Hydrogen is a promising fuel and energy storage medium because hydrogen emits no global warming gas when used. Nevertheless, hydrogen generation reactions usually require fossil fuels and emit carbon dioxide," said Hiroyasu Tabe, research associate at the Graduate School of Engineering at Osaka City University in Japan. According to Tabe, it would be extremely efficient to use a photocatalyst to speed the reaction of hydrogen generation from a renewable source, such as solar power. Called hydrogen evolution, the gas must be stored and kept from recombining into more common molecules that aren't useful for producing clean fuel.


Read more at: https://phys.org/news/2018-02-scientists-egg-whites-energy-production.html#jCp

Offline thackney

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Re: Scientists use egg whites for clean energy production
« Reply #1 on: February 15, 2018, 01:20:34 pm »
Hydrogen is a terrible energy storage medium.

Low specific gravity results in high compression needed for reasonable energy densities (keep the fuel tank smaller than the passenger compartment of a car) and large associated losses to achieve that compression.

High degrees of finishing (extra cost) required for threaded and flanged connection due to the small molecule size.  Expensive metal alloys are required to prevent hydrogen embrittlement over time.

The refining industry uses a lot of hydrogen to achieve the low sulfur requirements of transportation fuel.  Requirements and costs associated with handling it are well know, and expensive.
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Offline Suppressed

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Re: Scientists use egg whites for clean energy production
« Reply #2 on: February 15, 2018, 01:35:10 pm »
Hydrogen is a terrible energy storage medium.

Low specific gravity results in high compression needed for reasonable energy densities (keep the fuel tank smaller than the passenger compartment of a car) and large associated losses to achieve that compression.

High degrees of finishing (extra cost) required for threaded and flanged connection due to the small molecule size.  Expensive metal alloys are required to prevent hydrogen embrittlement over time.

The refining industry uses a lot of hydrogen to achieve the low sulfur requirements of transportation fuel.  Requirements and costs associated with handling it are well know, and expensive.

Well, what should our zeppelin fleet use? Helium?
And we shouldn't waste that until our fusion reactors come online!
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Oceander

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Re: Scientists use egg whites for clean energy production
« Reply #3 on: February 15, 2018, 02:00:33 pm »
If they’re burning the hydrogen, then it’s producing water vapor as an exhaust gas, and that is a greenhouse gas; I.e., using it does produce global warming gases.