News for hackers. Stuff that matters.

A comment on How much do rockets pollute?. Parent comment

Re:How much do rockets pollute? by seventh-chord on Saturday March 21, 2020 @06:57AM (#22645729)
Isnt the ratio closer to ~6 tons of CO2 per ton of H2? You get CO2 + 4 H2, which weigh 44 and 4*2 respectively.

Also, isnt this a non-issue, because (at least in theory) the reaction is contained in your converter plant, where you can collect the CO2?

[ Parent | on HN ]
Re:How much do rockets pollute? by vbezhenar on Saturday March 21, 2020 @11:55AM (#22647380)
That's quote from wikipedia. I think you're right with your calculations, so I don't really know where this number came from.

What're you going to do with that collected CO2 other than releasing it to the atmosphere?

[ Parent | on HN ]
Re:How much do rockets pollute? by namibj on Sunday March 22, 2020 @12:56AM (#22652822)
Separating from other gasses, followed by sequestering.
[ Parent | on HN ]
Re:How much do rockets pollute? by vbezhenar on Sunday March 22, 2020 @05:58AM (#22653881)
I guess that it would cost a lot. Technically you can do that with traditional coal plants.
[ Parent | on HN ]
Re:How much do rockets pollute? by namibj on Tuesday March 24, 2020 @06:21AM (#22673519)
Those don't produce fuel. They produce electricity.
[ Parent | on HN ]