Improving the density of carbon molecular sieves for the storage of natural gas
AssigneeAllied-Signal Inc.
InventorsLuis M. Aparicio, Scott R. Keenan, Li Wang
Life of this patent
Estimating the term…
Abstract
Natural gas is stored in a closed vessel under a pressure of about 1400 to 4500 kPa using a carbon molecular sieve adsorbent. The deliverable volume of natural gas from a vessel packed with carbon molecular sieve particles is increased by raising the density of the polymer precursor of the carbon molecular sieve through adjustment of the conditions for suspension polymerization of vinylidene chloride.
Claims8
In the method of preparing a carbon molecular sieve by carbonizing a precursor polymer made by suspension polymerization of vinylidene chloride the improvement comprising increasing the density of said precursor polymer by using peroxy carbonate initiators for polymerization capable of maximizing polymer density and using an initial reaction pressure above atmospheric.
Dependencies are inferred from the claim text.