초록

A solid-phase physical sorbent-based fluid storage and dispensing system, in which the sorbent is a particulate activated carbon of specific pore character. The sorbent may be washed, e.g., with hydrofluoric acid, to remove adverse trace metals and oxidic transition metal species therefrom.

대표청구항 ▼

[ What is claimed is:] [1.] A fluid storage and dispensing system, comprising:a fluid storage and dispensing vessel;a solid-phase physical adsorbent medium in the vessel, having sorptive affinity for the fluid; andmeans for desorbing fluid and discharging same from the vessel;wherein the solid-phase

[ What is claimed is:] [1.] A fluid storage and dispensing system, comprising:a fluid storage and dispensing vessel;a solid-phase physical adsorbent medium in the vessel, having sorptive affinity for the fluid; andmeans for desorbing fluid and discharging same from the vessel;wherein the solid-phase physical adsorbent medium comprises a particulate activated carbon sorbent having at least 95% of its porosity constituted by pores in a pore diameter range of from about 5 Angstroms to about 40 Angstroms, and at least 75% of its porosity constituted by pores in a pore diameter range of from about 4 Angstroms to about 25 Angstroms, with a maximum pore volume measured by a Horvath-Kawazoe Differential Pore Volume Plot being between about 5 Angstroms and about 10 Angstroms pore diameter, and wherein the solid-phase physical adsorbent medium has a cumulative pore volume between about 0.35 and about 0.6.