Chemistry of hydrocarbon compounds – Purification – separation – or recovery – By plural serial diverse separations
Patent
1989-09-07
1990-08-28
Pal, Asok
Chemistry of hydrocarbon compounds
Purification, separation, or recovery
By plural serial diverse separations
208334, 208335, 208337, 208341, 585352, 585825, 585826, 585867, C07C 710, C07C 712
Patent
active
049527487
ABSTRACT:
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.
REFERENCES:
patent: 2666500 (1954-01-01), Cahn et al.
patent: 3094569 (1963-06-01), Thomas
patent: 3567791 (1971-03-01), Fuller
patent: 4083772 (1978-04-01), Asselin et al.
patent: 4793545 (1989-01-01), Schmidt
"Operating Problems in the Hanlan Swan Hills Gas Field", by W. J. King, presented at the SPE Gas Technology Symposium Jun. 13-16, 1988, Dallas, Tex.
Alexander Richard A.
Knight Charles E.
Furr Jr. Robert B.
McKillop Alexander J.
Mobil Oil Corp.
Pal Asok
Speciale Charles J.
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