MOF Methane Storage: Deliverable Capacity & Pressure-Swing Cycling

Metal-organic frameworks pack an enormous internal surface into a tiny volume, letting a storage tank hold far more gas at moderate pressure than an empty cylinder ever could — this is how adsorbed natural gas (ANG) tanks reach practical energy density without the cost and danger of extreme compression. This simulator models methane uptake with a real Langmuir isotherm, n(P) = n_max·b·P/(1+b·P) with a temperature-dependent affinity constant b(T), and renders a 3D MOF lattice whose pore occupancy tracks that isotherm live. The key engineering number isn't total uptake but deliverable (working) capacity — the gas actually released between a charge pressure and a discharge pressure — and the sim makes the trade-off visible: crank up the binding strength or lower the discharge pressure and you can watch usable capacity plateau or fall even as total adsorbed gas rises, exactly the compromise real MOF materials chemists optimize against DOE ARPA-E MOVE targets.