초록 ▼

A process is disclosed for extracting diamondoid compounds from a hydrocarbon gas stream. The process includes two stages, each of which alone is effective to remove diamondoids from a hydrocarbon gas stream. The first stage comprises contacting the diamondoid-laden hydrocarbon gas with a suitable s

A process is disclosed for extracting diamondoid compounds from a hydrocarbon gas stream. The process includes two stages, each of which alone is effective to remove diamondoids from a hydrocarbon gas stream. The first stage comprises contacting the diamondoid-laden hydrocarbon gas with a suitable solvent to preferentially dissolve the diamondoids into the solvent. Diesel fuel is the preferred solvent for this first stage. The second stage comprises sorbing diamondoids from the diamonoid-laden hydrocarbon gas with silica gel. The most preferred embodiment of the invention is a serial process in which a diamondoid-laden gas is first treated in the solvation stage and the partially purified gas is further resolved in the silica gel sorption stage. The invention still further includes a process for segregating adamantane and diamantane when both are separated from a hydrocarbon gas stream.

대표청구항 ▼

A process for extracting diamondoid compounds from a diamondoid-containing gas stream comprising the steps of: (a) providing a gas stream containing a recoverable concentration of diamondoid compounds; (b) mixing said gas stream containing diamondoid compounds with a solvent in which diamondoid comp

A process for extracting diamondoid compounds from a diamondoid-containing gas stream comprising the steps of: (a) providing a gas stream containing a recoverable concentration of diamondoid compounds; (b) mixing said gas stream containing diamondoid compounds with a solvent in which diamondoid compounds are at least partially soluble; (c) controlling the conditions including temperature and pressure of said mixture of step (b) above to maintain at least a portion of said mixture in the liquid phase; (d) separating said mixture under the controlled conditions of step (c), above into a partially purified gas stream and a diamondoid-enriched solvent stream; (e) recovering diamondoid compounds from said diamondoid-enriched solvent stream; (f) contacting said partially purified gas stream with silica gel in a first sorption zone for a period of time sufficient for said silica gel to sorb at least a portion of said diamondoid compounds from said hydrocarbon gas; and (g) recovering diamondoid compounds from silica gel in a second sorption zone by contacting said silica gel with a regeneration fluid in which diamondoid compounds are at least partially soluble to desorb diamondoid compounds from said silica gel.