Patent ID: 7718570

Claim:
A carbon molecular sieve having first plurality of pores of a first size range and second plurality of pores of a second size range, wherein the second plurality of pores of a second size range have a size of less than 1 nm and the first plurality of pores of a first size range have a size of 1 nm to about 80 nm, and wherein the volume of the second plurality of pores of a second size range is about 0.56 cm 3 /g to about 0.62 cm 3 /g, the porosity of the second plurality of pores of a second size range is about 36% to about 37%, and the total volume of pores is about 1.56 cm 3 /g to about 1.67 cm 3 /g, wherein the surface area of the carbon molecular sieve is 1513 m 2 /g to 1950 m 2 /g.