As currently envisaged, there is indeed a significant demand for Hydrogen on Venus. It's one of their more significant imports in fact.
Because the big plan for making permanent changes to the atmosphere involves taking vast quantities of CO2 and splitting it. Now carbon on it's own has some uses - graphite is exportable and industrial diamond is actually used as a construction material, but you don't want raw oxygen around because that's volatile as all hell. And dumping it back in the atmosphere is no good, there's a very significant need to reduce the atmospheric pressure - the 'sea level' pressure is currently 90x that of Earth.
But if you have hydrogen available then you can bond the oxygen to it and produce water which is very useful in terraforming. And if you have more carbon than you can use then you can bond that to some hydrogen and get CH4 which is actually very marketable on Earth if you can get it there.
So I there are two lines of trade relatively obvious: carrying hydrogen from, say, Jupiter to Venus; and then carrying natural gas from Venus to Earth. Possibly even in the same ships.
So what we need is a third leg for a triangular trade. What could be carried out from Earth to Jupiter?
D for Drakensis
You're only young once, but immaturity is forever.
Because the big plan for making permanent changes to the atmosphere involves taking vast quantities of CO2 and splitting it. Now carbon on it's own has some uses - graphite is exportable and industrial diamond is actually used as a construction material, but you don't want raw oxygen around because that's volatile as all hell. And dumping it back in the atmosphere is no good, there's a very significant need to reduce the atmospheric pressure - the 'sea level' pressure is currently 90x that of Earth.
But if you have hydrogen available then you can bond the oxygen to it and produce water which is very useful in terraforming. And if you have more carbon than you can use then you can bond that to some hydrogen and get CH4 which is actually very marketable on Earth if you can get it there.
So I there are two lines of trade relatively obvious: carrying hydrogen from, say, Jupiter to Venus; and then carrying natural gas from Venus to Earth. Possibly even in the same ships.
So what we need is a third leg for a triangular trade. What could be carried out from Earth to Jupiter?
D for Drakensis
You're only young once, but immaturity is forever.