Prometheus Fuels

Prometheus Fuels is an American energy startup developing tools to filter atmospheric CO2 using water, electricity, and nanotube membranes to produce commercially viable fuels. When powered by renewable electricity sources, e-fuels produced by such direct air capture methods do not contribute further emissions, making them carbon neutral.[1] The project was one of two selected for investment in March of 2019 by Y Combinator, a prominent Silicon Valley business incubator, after requesting proposals which address carbon removal.[2]

Prometheus Fuels
TypePrivate
IndustryCarbon-neutral fuels, carbon capture and storage, environmental services
Founded2019
FounderRob McGinnis
Headquarters
Santa Cruz, California
,
USA
ProductsZero-net-carbon gasoline and jet fuels
WebsitePrometheusFuels.com

The process uses a solution of liquid water and CO2 that is exposed to an electrified copper plate. This catalyzes a reaction and produces fuel alcohols (mostly ethanol). Closely packed filters made from cylindrical carbon nanotubes embedded in plastic allow ethanol through while blocking water molecules. From there, the more concentrated solution of approximately 95% ethanol can be catalyzed with zeolite to join into more complex hydrocarbons, including gasoline, diesel, or jet fuel. This technique works at room temperature, while traditional methods of extraction require heat to distill it from a solution.[1][3] Founder Rob McGinnis speculated that even though the theoretical efficiency of Prometheus' system was only 50–60%, their less energy-intensive process could nevertheless considerably lower overall cost and be competitive with fossil fuels.[4]

In June 2020, BMW announced an investment of US$12.5 million into Prometheus Fuels.[5][6] A section of the official BMW website declared that "By perfecting existing chemical reactions and processes, Prometheus will make drop-in replacement fuels that are guilt-free. Prometheus will help to fuel the power of choice."[7] A Norwegian investment firm called Tjuvholmen Ventures that has invested in a small assortment of green energy companies has also invested in Prometheus Fuels.[8][9]

The first commercial fuel will be sold in California at end of 2020, according to the company.[10]

References
  1. Service, Robert F. (3 July 2019). "This former playwright aims to turn solar and wind power into gasoline". Science Magazine. Retrieved 14 March 2020.
  2. Brustein, Joshua (30 April 2019). "In Silicon Valley, the Quest to Make Gasoline Out of Thin Air". Bloomberg.com. Retrieved 14 March 2020. Y Combinator, a renowned early-stage investment firm, made a show of calling for new companies working on carbon removal.
  3. Erickson, Doug (26 November 2019). "Making Gasoline Out of Thin Air". Santa Cruz Works. Retrieved 14 March 2020.
  4. Johnson, Eric (13 November 2019). "Reclaiming fuel from air". Chemistry World. Retrieved 12 March 2020.
  5. Malewar, Amit (2020-06-11). "BMW invests in technology that recycles CO2 from the air into carbon-neutral gasoline". Inceptive Mind. Retrieved 2020-06-21.
  6. "BMW i Ventures Funds Prometheus Fuels, a Company Converting CO2 in Air to Carbon-Neutral Gasoline". www.press.bmwgroup.com. Retrieved 2021-01-28.
  7. "BMW i Ventures – Prometheus Fuels". BMW.com. 8 January 2021. Retrieved 28 January 2021.
  8. "Portfolio". www.tjuvholmenventures.no. Retrieved 2021-01-28.
  9. "Article". www.tjuvholmenventures.no. Retrieved 2021-01-28.
  10. "Recycling Combustion: Creating Fuel From Carbon Dioxide". www.msn.com. Retrieved 2020-08-16.
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