If you are using MC, the temperature is used to calculate the acceptance ratio. For example, the concept of temperature/velocity can not be extracted from MC as the trajectories don't follow physical laws (actually, there is no physical meaningful trajectory at all).
If your fluid-wall interaction is not temperature dependent an the adsorbent itself is rigid, changing the temperature of the adsorbent shouldn't even make a different for the result of your adsorbate.
Open for a fruitful discussion about that