Sym

Comment

Sym

Comment

β

Affinity coefficient in D. A equation

ra

Inner radius of absorber

ε

Volume of the empty space between the carbon pellets in relation to total volume

rb

Outer radius of absorber

ρc

Activated carbon density

Rp

Carbon particle radius

µ

Coefficient of viscosity

t

Time

Cg

Gas concentration

T

Temperature

D0

Diffusion coefficient

Uads

Adsorption energy

Ea

Activation energy

Uc

Internal energy of activated carbon

hg

Enthalpy of gas

Ug

Internal energy of gas

Kd

Darcy’s coefficient

Umet

Internal energy of methanol

Keff

Conduction coefficient of carbon with adsorbed methanol

v

Gas velocity

n

Characteristic parameter of adsorption pair

X

Methanol concentration on activated carbon

P

Gas pressure

X0

Maximun adsorption capacity

P0

Saturation pressure of methanol

Xeq

Equilibrium concentration of methanol

r

Radius