The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 21, 2019
Filed:
Feb. 09, 2017
Saudi Arabian Oil Company, Dhahran, SA;
John Yang, Acton, MA (US);
Milind M. Vaidya, Foothill Ranch, CA (US);
Veera Venkata R. Tammana, Ras Tanura, SA;
Daniel Harrigan, Cambridge, MA (US);
Saudi Arabian Oil Company, Dhahran, SA;
Abstract
Composite membranes include a polymer material that is selectively permeable to heavy (C) hydrocarbons over methane. The polymer material may be a modified poly(dimethylsilane) having a backbone including dimethylsiloxyl monomers, substituted methylsiloxyl monomers, and internal-network monomers. The substituted methylsiloxyl monomers may include phenylmethylsiloxyl monomers or C-Calkylmethylsiloxyl monomers such as octylmethylsiloxyl monomers. The polymer material may include silicon-alkyl linkages such as Si—(CH)—Si, where n≥2 that may create a structure that imparts desirable permeability and selectivity characteristics to the composite membrane. The polymer material may be cast onto a porous support material. The composite membranes may be incorporated into systems or methods for removing heavy hydrocarbons from natural gas.