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OKIsItJustMe

(21,016 posts)
Sun Nov 17, 2024, 06:49 PM Nov 17

University of Houston: Revolutionizing Tech to Produce Sustainable Fuel

https://stories.uh.edu/microreactor_UH_SRI_111324/index.html
Revolutionizing Tech to Produce Sustainable Fuel
By Rashda Khan

A University of Houston-affiliated project that has the potential to transform sustainable fuel production was selected to receive $3.6 million from the U.S. Department of Energy’s Advanced Research Projects Agency-Energy. Led by SRI, a leading nonprofit research institute, the project titled “Printed Microreactor for Renewable Energy Enabled Fuel Production” or PRIME-Fuel, aims to develop a modular microreactor technology that converts carbon dioxide into methanol using renewable energy sources. UH, a Carnegie-designated Tier One public research institution, is contributing essential research needed for the project.

This is part of ARPA-E’s $41 million Grid-free Renewable Energy Enabling New Ways to Economical Liquids and Long-term Storage program, otherwise known as the GREENWELLS program, which includes 14 projects to develop technologies that use renewable energy sources like wind and solar to produce sustainable liquid fuels or chemicals, which can be transported and stored similarly to gasoline or oil. Selected teams will develop systems that use electricity, carbon dioxide and water at renewable energy sites to produce renewable liquid renewable fuels that offer a clean alternative for sectors like transportation.

“Renewables-to-liquids fuel production has the potential to boost the utility of renewable energy all while helping to lay the groundwork for the Biden-Harris Administration’s goals of creating a clean energy economy,” said U.S. Secretary of Energy Jennifer M. Granholm in an ARPA-E press release.



“We believe that PRIME-Fuel will play a critical role in the transition to sustainable energy solutions,” said Rahul Pandey, senior scientist with SRI and principal investigator on the project. “By harnessing renewable energy to produce methanol, we can help combat climate change while providing valuable resources for various industries by leading to cost-effective and sustainable methanol production.”

https://arpa-e.energy.gov/news-and-media/press-releases/us-department-energy-announces-41-million-technologies-expand-use
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University of Houston: Revolutionizing Tech to Produce Sustainable Fuel (Original Post) OKIsItJustMe Nov 17 OP
Burning ethanol results in what environmental concerns? brush Nov 17 #1
It depends on how the ethanol is produced OKIsItJustMe Nov 18 #5
Thanks for the informative info. Ethanol emissions seem less negative than straight gasoline ones. brush Nov 18 #7
One clear advantage of ethanol over hydrogen is that it is a liquid. OKIsItJustMe Nov 18 #8
Thanks. Great points. brush Nov 18 #9
Methanol, not ethanol. One carbon versus two. eppur_se_muova Nov 19 #10
Sustainable fuel isn't sustainable GoreWon2000 Nov 18 #2
I guess you didn't read the OP very carefully OKIsItJustMe Nov 18 #3
I stated well established facts about sustainable fuel GoreWon2000 Nov 18 #4
Non sequitur OKIsItJustMe Nov 18 #6
Methanol is still a toxic greenhouse gas GoreWon2000 Nov 20 #11

OKIsItJustMe

(21,016 posts)
5. It depends on how the ethanol is produced
Mon Nov 18, 2024, 01:16 PM
Nov 18

In this case they’re using renewable electricity, carbon dioxide CO₂ and water H₂O to produce ethanol CH₃CH₂OH. When it is burned, it will produce CO₂ and water vapor H₂O. It is essentially “carbon neutral."

Ethanol can also be used in fuel cells.

https://www.ucf.edu/news/new-ethanol-fuel-cell-technology-rivals-fossil-fuels-and-electric-car-batteries/

New Ethanol Fuel Cell Technology Rivals Fossil Fuels and Electric Car Batteries
Ethanol fuel cells, in which alcohol can be poured directly in as fuel, offer cleaner emissions than fossil fuels and no charging times compared to electric vehicle batteries.

By Beatriz Nina Ribeiro Oliveira | August 9, 2023

University of Central Florida researchers have achieved new record-setting power density for ethanol fuel cells, helping advance the technology as a competitor to fossil fuels and electric car batteries.

Ethanol fuel cells offer cleaner emissions than fossil fuels and no charging times compared to electric vehicle batteries.

In recent studies published in the journals Nature Communications and Joule, UCF NanoScience Technology Center Associate Professor Yang Yang and his team developed new catalysts to make direct ethanol fuel cells last longer and boost their power density to a record level.

brush

(58,018 posts)
7. Thanks for the informative info. Ethanol emissions seem less negative than straight gasoline ones.
Mon Nov 18, 2024, 01:26 PM
Nov 18

There's also no charging time penalty as with electic vehicles.

I'm curious how it stands up against the new hydrogen fuel tech that's emerging?

OKIsItJustMe

(21,016 posts)
8. One clear advantage of ethanol over hydrogen is that it is a liquid.
Mon Nov 18, 2024, 01:43 PM
Nov 18

Ethanol is easy to contain. Hydrogen is not as easily contained (because it is the smallest molecule, it tends to sneak out of things.) Ethanol is a physically larger molecule. You can easily pump it from one tank to another just as we do gasoline.

Producing ethanol will likely involve first “splitting water" producing hydrogen and oxygen (just as green plants do.) Then, it will be combined with carbon (just as green plants do.) Just think of it as hydrogen in a more convenient form.

eppur_se_muova

(37,662 posts)
10. Methanol, not ethanol. One carbon versus two.
Tue Nov 19, 2024, 09:35 AM
Nov 19

Methanol is more toxic than ethanol, and produces traces of toxic, carcinogenic formaldehyde on combustion, apparently from unburned methanol in the exhaust.

GoreWon2000

(1,080 posts)
2. Sustainable fuel isn't sustainable
Mon Nov 18, 2024, 12:48 PM
Nov 18

Sustainable fuel doesn't reduce CO2 emissions by the amount that's needed for the climate catastrophe our planet is facing. In addition, corn and sugarcane can't be grown in the quantities needed for a reliable long term supply of energy. In addition it would take too much land away from the land that's needed to grow food.

OKIsItJustMe

(21,016 posts)
3. I guess you didn't read the OP very carefully
Mon Nov 18, 2024, 01:04 PM
Nov 18
… “Printed Microreactor for Renewable Energy Enabled Fuel Production” or PRIME-Fuel, aims to develop a modular microreactor technology that converts carbon dioxide into methanol using renewable energy sources. …

GoreWon2000

(1,080 posts)
4. I stated well established facts about sustainable fuel
Mon Nov 18, 2024, 01:10 PM
Nov 18

In addition, nuclear power isn't green because no one has figured out what to do with the toxic nuclear waste. My engineer father with more than 40 years of aviation and automotive engineering work experience along with bachelors and masters degrees in engineering taught me this.

OKIsItJustMe

(21,016 posts)
6. Non sequitur
Mon Nov 18, 2024, 01:23 PM
Nov 18
Sustainable fuel doesn't reduce CO2 emissions by the amount that's needed for the climate catastrophe our planet is facing. In addition, corn and sugarcane can't be grown in the quantities needed for a reliable long term supply of energy. In addition it would take too much land away from the land that's needed to grow food.

Right. I don’t like using food to make fuel. This doesn’t do that. This is essentially "carbon neutral” (which cannot be said for the “biofuels” you mention.) So, while what you say is true, it is not relevant.

This will not solve the climate crisis. The climate crisis cannot be solved by reducing (or even eliminating) emissions alone. However, these are necessary to combat climate change. (i.e. necessary, but not sufficient.)

In addition, nuclear power isn't green because no one has figured out what to do with the toxic nuclear waste. My engineer father with more than 40 years of aviation and automotive engineering work experience along with bachelors and masters degrees in engineering taught me this.

It’s not so much that we haven’t “figured out what to do with the toxic nuclear waste” there are numerous “solutions” the problem is getting people to choose between various options. (I am no great fan of “nuclear energy.”)

However, once again, this is not relevant to the OP, since it does not use nuclear power.

GoreWon2000

(1,080 posts)
11. Methanol is still a toxic greenhouse gas
Wed Nov 20, 2024, 01:34 PM
Nov 20

and won't be enough of a greenhouse gas reduction for the calamity that our planet is facing. BTW, your schooling and work credentials on this issue are?

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