Page 46 - Separation process engineering

R
resolution, dimensionless, Eq. (18-82)

R

gas constant (e.g., )

Re
Reynolds number, dimensionless, Eq. (18-60)

Sc
Schmidt number, dimensionless, Eq. (18-60)

Sh
Sherwood number, dimensionless, Eq. (18-60)

t
time, s, min, or h

t
br
breakthrough time, s, min, or h
t center

time center of pattern exits column, s, min, or h, Eq. (18-85b)
t elution

elution time, s, min, or h

t , t
F feed
feed time, s, min, or h
t MTZ

time of mass transfer zone, Figure 18-23, s, min, or h

t
R
retention time, s, min, or h
t sw

switching time in SMB, s, min, or h

T
temperature, °C or K
T amb

ambient temperature, °C or K

T s

solid temperature, °C or K
u ion,i

velocity of ion i, m/s or cm/s

u s

average solute velocity, m/s or cm/s