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US 10,730,005 B2Granted
Porous materials for natural gas liquids separations
AssigneeApache Corporation
InventorsJason G. S. Ho, J Calvin Cooper
Life of this patent
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Abstract
A method for continuous pressure swing adsorption separation of a pressurized feed gas stream, including separating hydrocarbons heavier than methane from the pressurized feed gas stream by applying an adsorbent porous material to produce at least two product streams, a first product stream being substantially pure methane suitable for transport by natural gas pipeline, and a second product stream being substantially comprised of components with a greater molecular weight than methane.
Claims20
A selective adsorption system, the system comprising:
- at least one adsorbent bed, the adsorbent bed comprising adsorbents including porous material comprising carbon, wherein the selective adsorption system is operable to continuously and simultaneously separate components of a mixed gas stream comprising carbon dioxide into a substantially pure carbon dioxide stream by selective adsorption of carbon dioxide at pressures greater than about 1 bar versus other gases in the mixed gas stream, and a byproduct stream being substantially comprised of remaining components from the mixed gas stream, wherein the porous material exhibits pore diameters between about 1 nm and about 2 nm creating at least about 0.3 cm3/g of pore volume.
An adsorption system, the system comprising:
- at least one adsorbent bed comprising an adsorbent porous material and wherein the at least one adsorbent bed is operable at pressures at about 1 bar or greater, and
- wherein the adsorption system is operable to separate components of a feed gas stream into a substantially pure target hydrocarbon stream and a product stream being substantially comprised of components with a greater molecular weight than the target hydrocarbon stream,
- wherein the at least one adsorbent bed comprises at least one material selected from the group consisting of:
- carbon-based adsorbents;
- silica gels;
- activated aluminas;
- zeolite imidazole frameworks (ZIFs);
- metal organic frameworks (MOFs);
- molecular sieves;
- other zeolites;
- and combinations thereof, wherein the material exhibits pore diameters between about 1 nm and about 2 nm crating at least about 0.3 cm3/g of pore volume.
8 more elements
Dependencies are inferred from the claim text.