Solid-sorbent fluidized-bed DAC with compression heat recovery

A second, lower-temperature DAC pathway alongside the liquid-KOH + rotary-kiln example: the captured CO2 loads onto a solid sorbent, which regenerates in an indirectly-heated fluidized bed (real Wen-Yu minimum-fluidization sizing + Arrhenius desorption kinetics, unitops/solids.py's FluidizedBed) at 120 degC -- the real low-temperature regime solid amine/physisorbent DAC sorbents actually use, versus the other example's ~977 degC calcination. The bed is fluidized by a recycled CO2 sweep (self-sweep with product gas, a real design choice that sidesteps needing a steam-condensate knockout step). The desorbed CO2 is compressed toward liquefaction pressure in one adiabatic stage -- hot enough (~780 K discharge) that routing it through a heat exchanger against process utility water genuinely converts that water from subcooled liquid to a boiling mixed-phase stream before the CO2 continues on to the same real liquefaction physics as the other DAC example. Honesty note: this recovers real compression waste heat into a genuinely useful utility stream (the actual mechanical-vapor-recompression principle -- reusing a compressor's own heat instead of rejecting it to cooling water) but does NOT feed that heat back into the fluidized bed's own desorption duty, which this unit op takes as a fixed wall-temperature parameter, not a second heating-utility stream -- a literal closed MVR loop onto the desorber itself isn't wireable with this unit op as built.