Have you ever heard about green rocket fuel that is made from plastic waste? Scientists from one space company figured out how to remake plastic waste into rocket fuel that has already been successfully tested
Given the likely lower than normal HHV (High Heat Value) for recycled product, I can't imagine there is any economical benefit, which is a critical component in any space endeavor.Have you ever heard about green rocket fuel that is made from plastic waste? Scientists from one space company figured out how to remake plastic waste into rocket fuel that has already been successfully tested
Only the following types of plastic can be converted into rocket fuel. Types like Polypropylene (PP). Polyester (PE). Polystyrene (PS) and their mixtures and analogsSome years ago, when getting rid of old tires was a really big issue, there was a new requirement to use "crumb rubber" additive to liquid asphalt for chip seal road work. This was supposed to be ground-up old tire rubber to help dispose of the tires. The rubber additive is definitely a better asphalt product for roads, btw.
However, seal coat jobs are awarded on low bids. So it was reported later that a lot of work was being done with virgin crumb rubber. You can guess why.
I would be surprised if it would make sense to refine plastics to get rocket-fuel quality, but I'm no chemist. I also wonder when air pollution using kerosene fuels, for instance, in lieu of the use of H and O2 (producing water vapor) will be shunned at some point.
That's interesting but is the cost for this product greater than the gain, including environmental costs due to combustion?
Yes. I see Wiki has a link to the Vulcan Centaur rocket powered by CH4 with LOX as the oxidizer.I do not have any facts to hand, but I would have thought that the "ease of combustion" (combustion dynamics) would favour a low MW hydrocarbon such as CH4, compared with a polymer of many '000s.