Parameter

Minimum

Average

Maximum

Unit

BET Isotherm

(1)

(2)

(3)

Po

700

900

1100

psi

Vm

25

40

50

scf/ton

C

5

10

15

Unit-less

N

5

10

15

Unit-less

Langmuir Isotherm

(1)

(2)

(3)

PL

300

400

500

psi

VL

30

45

60

scf/ton