Chemistry of hydrocarbon compounds – Purification – separation – or recovery – By contact with solid sorbent
Patent
1995-03-23
1996-09-17
Caldarola, Glenn A.
Chemistry of hydrocarbon compounds
Purification, separation, or recovery
By contact with solid sorbent
585802, 95141, C07C 0712
Patent
active
055570305
ABSTRACT:
A process is provided for the removal of heavy hydrocarbons from a feed gas mixture. An adsorption process employing a high silica zeolite adsorbent having a silica to alumina ratio greater than about 20 and having a pore size greater than about 4.5 Angstroms is used to remove from the feed gas mixture heavy hydrocarbon contaminants and permit the further treatment of the feed gas for the bulk removal of carbon dioxide. The adsorption zone comprises at least 2 adsorption beds wherein one of the first adsorption beds is operating in an adsorption mode and the other is being regenerated. The effluent from the adsorption zone, depleted in heavy hydrocarbons is passed to a membrane treating zone to provide a non-permeate stream depleted in carbon dioxide. At least a portion of the non-permeate stream is heated and the heated non-permeate stream is used to regenerate the adsorption zone. The use of the present invention removes heavy hydrocarbon contaminants which are responsible for the degeneration of the performance of the membrane treating zone.
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Markovs John
Yon Carmen M.
Caldarola Glenn A.
McBride Thomas K.
Silverman Richard P.
Tolomei John G.
UOP
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