Title:
MEMBRANE SYSTEM FOR NATURAL GAS UPGRADING
Document Type and Number:
WIPO Patent Application WO/2012/082537
Kind Code:
A3
Abstract:
The present invention involves the use of a novel membrane system for natural gas upgrading. This membrane system includes a first-stage membrane such as a membrane prepared from the polymer of intrinsic microporosity (PIM) to selectively remove hydrocarbons from C3 to C35 to control the dew point of natural gas, and a second-stage membrane such as a polybenzoxazole (PBO) or crosslinked PBO membrane to selectively remove CO2 from natural gas. The new membrane system described in the current invention eliminates the use of high cost and high footprint membrane pretreatment. Therefore, the membrane system can significantly reduce the footprint and cost for natural gas upgrading compared to the current commercially available membrane systems that include a non-membrane-related pretreatment system.
Inventors:
LIU CHUNQING (US)
FAHEEM SYED A (US)
MINKOV RAISA (US)
FAHEEM SYED A (US)
MINKOV RAISA (US)
Application Number:
PCT/US2011/064084
Publication Date:
September 27, 2012
Filing Date:
December 09, 2011
Export Citation:
Assignee:
UOP LLC (US)
LIU CHUNQING (US)
FAHEEM SYED A (US)
MINKOV RAISA (US)
LIU CHUNQING (US)
FAHEEM SYED A (US)
MINKOV RAISA (US)
International Classes:
B01D53/62; B01D71/06; C10L3/12
Foreign References:
| US20100133190A1 | 2010-06-03 | |||
| US7758751B1 | 2010-07-20 | |||
| US20090126567A1 | 2009-05-21 |
Attorney, Agent or Firm:
GOLDBERG, Mark (25 East Algonquin RoadP.O. Box 501, Des Plaines Illinois, US)
Download PDF:
Previous Patent: TRANSFER ARTICLE HAVING MULTI-SIZED PARTICLES AND METHODS
Next Patent: BUOYANT PLUG FOR EMERGENCY DRAIN IN FLOATING ROOF TANK
Next Patent: BUOYANT PLUG FOR EMERGENCY DRAIN IN FLOATING ROOF TANK