US Patent 7306652 Siloxane removal process

Patent 7306652 was granted and assigned to PARKER-HANNIFIN CORPORATION on December, 2007 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

PARKER-HANNIFIN CORPORATION

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7306652

Date of Patent

December 11, 2007

Patent Application Number

11092684

Date Filed

March 30, 2005

Patent Primary Examiner

‌

Frank M Lawrence, Jr.

Patent abstract

Biogas released from landfills and sewage treatment plants is freed of siloxane contaminants by passing the biogas through a bed containing activated alumina, which absorbs the siloxanes. When the activated alumina becomes saturated with siloxanes, the absorption capability of the activated alumina can be recovered by passing a regeneration gas through the bed of activated alumina. A system containing two or more beds of activated alumina can use one bed to remove siloxanes from biogas while one or more of the other beds are being regenerated.