When you are above 300K in the supercritical range water is less soluble in carbon dioxide. For example, when the carbon dioxide is 50 deg c compared to 40 deg C, it dissolves about half as much water. So you could try running at …
In the past I have used a Separatory Funnel along with the gentle aid of a heat gun. It isn't the most fun cleaning but it worked well enough for me.
Please, may you describe, what is Separatory Funnel?