My car runs on methane, but it's very expensive, only 20% cheaper than gas and soon it might be 1:1. Hard to store (200 bar pressure tank) and tanks have a 20 year lifespan.
Wikipedia says the burning of methane produces CO2 and water, seemingly at a 1:1 ratio between the methane and CO2 molecules (chemistry isn't my strong suit, though). CO2 is a lot better than CH4 afaik, so rather than venting it directly, this makes me wonder why we don't burn all waste methane that is currently just being vented like from these ships
Also interesting
> Compared to other hydrocarbon fuels, methane produces less carbon dioxide for each unit of heat released. [...] methane, being the simplest hydrocarbon, produces more heat per mass unit (55.7 kJ/g) than other complex hydrocarbons.
Here (Spain) you can find a bunch of CNG vehicles, although not a lot. GPL is more popular, and there is at least 2x or 3x times GPL stations than CNG stations. I think CNG is more popular for commercial drivers around the city, like taxis, vans, microbuses, and the like.
A friend has a CNG Seat Mii, that's the same as a VW Up!
Here, if you click in "Más información" on any category, you can see a list of vehicles you can buy directly to the brand ready for CNG. The site might be out of date, as the models I see there are 2 to 5 years old.
lucb1e|1 year ago
Also interesting
> Compared to other hydrocarbon fuels, methane produces less carbon dioxide for each unit of heat released. [...] methane, being the simplest hydrocarbon, produces more heat per mass unit (55.7 kJ/g) than other complex hydrocarbons.
https://en.wikipedia.org/wiki/Methane
Tyr42|1 year ago
pvaldes|1 year ago
tecleandor|1 year ago
A friend has a CNG Seat Mii, that's the same as a VW Up!
Here, if you click in "Más información" on any category, you can see a list of vehicles you can buy directly to the brand ready for CNG. The site might be out of date, as the models I see there are 2 to 5 years old.
https://gasnam.es/catalogo-vehiculos-gnc-biognc-gnl-biognl/
UniverseHacker|1 year ago