We simulated single-component gas adsorption isotherms for CO 2 and N 2 at T = 298, 323, 348 and 373 K, and from P = 0.01 to 50 bar at logarithmically spaced intervals. The simulations at different pressures were chained, so that the final state of the simulation at pressure P n was used as the initial state of the simulation at pressure P n+1 . This procedure allowed reaching equilibrium faster than if we started from an empty simulation box with zero molecules at each new pressure value.