It’s a good idea, we have a dual column machine but the thing is we couldn’t run terps after oil without cleaning because the material columns share tubing on the back, but like it was brought up on here it’s cheaper for us to decarb in our 6k oven vs our 200k co2 machine. I think it has serious advantages if you wanted to retain the terpenes though.
I just need to see if it’s safe at those temperatures, I would probably hook up a heater to the jackets and see what can be done that way, because if you cycled hot gas you would definitely start extraction.