.. _multi_component_spreading_config: Multi Component Spreading ~~~~~~~~~~~~~~~~~~~~~~~~~ **Group /input/model/unit_XXX/adsorption – ADSORPTION_MODEL = MULTI_COMPONENT_SPREADING** ``IS_KINETIC`` Selects kinetic or quasi-stationary adsorption mode: 1 = kinetic, 0 = quasi-stationary. If a single value is given, the mode is set for all bound states. Otherwise, the adsorption mode is set for each bound state separately. =================== ========================= ========================================= **Type:** int **Range:** {0,1} **Length:** 1/NTOTALBND =================== ========================= ========================================= ``MCSPR_KA`` Adsorption rate constants in state-major ordering **Unit:** :math:`m_{MP}^3~mol^{-1}~s^{-1}` =================== ========================= ========================================= **Type:** double **Range:** :math:`\ge 0` **Length:** NTOTALBND =================== ========================= ========================================= ``MCSPR_KD`` Desorption rate constants in state-major ordering **Unit:** :math:`s^{-1}` =================== ========================= ========================================= **Type:** double **Range:** :math:`\ge 0` **Length:** NTOTALBND =================== ========================= ========================================= ``MCSPR_QMAX`` Maximum adsorption capacities in state-major ordering **Unit:** :math:`mol~m_{SP}^{-3}` =================== ========================= ========================================= **Type:** double **Range:** :math:`\gt 0` **Length:** NTOTALBND =================== ========================= ========================================= ``MCSPR_K12`` Exchange rates from the first to the second bound state **Unit:** :math:`s^{-1}` =================== ========================= ========================================= **Type:** double **Range:** :math:`\ge 0` **Length:** NCOMP =================== ========================= ========================================= ``MCSPR_K21`` Exchange rates from the second to the first bound state **Unit:** :math:`s^{-1}` =================== ========================= ========================================= **Type:** double **Range:** :math:`\ge 0` **Length:** NCOMP =================== ========================= =========================================