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Crosslinked polyethylene glycol polymer membranes for gas separation

A technology of polymer membrane and polyethylene glycol, applied in the direction of gas fuel, gas treatment, separation method, etc.

Inactive Publication Date: 2021-11-05
SAUDI ARABIAN OIL CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Furthermore, these conventional polymers require operationally complex synthetic processes, often involving high temperatures (well above 50 °C), one or more catalysts, and one or more solvents

Method used

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  • Crosslinked polyethylene glycol polymer membranes for gas separation
  • Crosslinked polyethylene glycol polymer membranes for gas separation
  • Crosslinked polyethylene glycol polymer membranes for gas separation

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Experimental program
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Embodiment

[0062] Preparation of polymer membranes according to formula (I)

[0063] Synthetic procedure: Charge 5 g (grams) of polyethylene glycol (PEG) oligomer in a vial. Some PEG oligomers are liquid at room temperature (ie, those oligomers with molecular weights of 200 Daltons, 300 Daltons, and 400 Daltons) and then react in large quantities. However, high molecular weight PEG oligomers (i.e., those with a molecular weight greater than 400 Daltons) were first dissolved in 3.3 mL (milliliters) of chloroform to produce a 50 wt. hours, and stirred at 50 °C until a homogeneous solution was formed.

[0064] Next, the atmosphere present in the vial was replaced by a nitrogen flow. After 15 minutes, a 27% stoichiometric amount of triphenylmethane triisocyanate (PTI) in ethyl acetate was transferred to the vial with a dry syringe. A nitrogen flow was maintained during the addition of PTI to evaporate the ethyl acetate. The reaction between the PEG oligomer and PTI is then performed unti...

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Abstract

A polymer membrane, methods of gas separation utilizing the polymer membrane, and methods of producing the polymer membrane are disclosed herein. The polymer membrane includes a crosslinked polyethylene glycol network polymer according to formula (I): (Formula (I)).

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Application Serial No. 16 / 291,563, filed March 4, 2019, the entire disclosure of which is hereby incorporated by reference. technical field [0003] Embodiments of the present disclosure generally relate to polymer membranes of crosslinked polyethylene glycol network polymers, methods of making these membranes, and methods of using these membranes to separate gas streams. Background technique [0004] Natural gas is an energy source that could reduce the world's reliance on liquid fuels for power generation. However, many natural gas reservoirs contain acid gases such as carbon dioxide (CO 2 ) and hydrogen sulfide (H 2 S)), a complex mixture of trace components of higher value heavy hydrocarbons, noble gases and other undesirable compounds. CO 2 and / or H 2 The combination of S with water can be corrosive at certain concentrations, which can cause damage to pipes or other equi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D67/00B01D53/22B01D69/02B01D69/12B01D71/52B01D71/54
CPCB01D69/12B01D69/02B01D2325/24B01D2325/22B01D2325/20B01D53/228B01D2323/30B01D2325/34B01D67/0006B01D71/54B01D2256/245B01D2257/504B01D2257/304C10L2290/548C10L3/103C10L3/104Y02C20/40B01D2325/52B01D67/00111B01D69/1071B01D71/5211B01D67/0011B01D71/421B01D69/107B01D67/0013B01D71/48B01D2325/04
Inventor 丹尼尔·J·哈里根
Owner SAUDI ARABIAN OIL CO