Page 44 - Separation process engineering

2
particle heat transfer coefficient, J/(K s m ) or similar units
h w
2
wall heat transfer coefficient, J/(K s m ) or similar units
HETP

height of equilibrium plate, cm/plate, Eq. (18-78b)
k f

film mass transfer coefficient, m/s or cm/s

k m,c

lumped parameter mass transfer coefficient with concentration driving force,
m/s or cm/s, Eqs. (18-56a) and (18-57a)
k m,q

lumped parameter mass transfer coefficient with amount adsorbed driving
force, m/s or cm/s, Eqs. (18-56b) and (18-57b)

K AB
mass action equilibrium constant for monovalent-monovalent ion exchange,
dimensionless, Eq. (18-40a)

K A,c

adsorption equilibrium constant in terms of concentration, units are
(concentration) -1

K′ i,c

linearized adsorption equilibrium constant in terms of concentration, units are
units of q/c, Eq. (18-6b)
K Ao

pre-exponential factor in Arrhenius Eq, (18-7a), same units as K A

K A,p

adsorption equilibrium constant in terms of partial pressure, units are
(pressure) -1

K′ A,p
linearized adsorption equilibrium constant in terms of partial pressure, units are
units of q /p , Eq. (18-5b)
A
A
K d

size exclusion parameter, dimensionless

K
DB
mass action equilibrium constant for divalent-monovalent ion exchange, same
units as c /c , Eq. (18-41)
T RT
K DE

Donnan exclusion factor, dimensionless, following Eq. (18-44)