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:
Aug. 11, 2020
Filed:
Jan. 17, 2020
Joseph D. Duff, Louisville, KY (US);
Joseph E. Paganessi, Burr Ridge, IL (US);
Joseph D. Duff, Louisville, KY (US);
Joseph E. Paganessi, Burr Ridge, IL (US);
Other;
Abstract
The invention relates to a process for the recovery and recycling of ethylene oxide (EO) after use in a sterilization process. The process involves the steps of introducing a mixed gas stream containing EO, nitrogen, oxygen, CO, water, and a few other trace elements. The system includes integrated EO concentration sensors to determine the concentration of the EO in the gas stream. The system includes a series of compressors to pressurize the gas stream, and chillers or condensers to cool the gas stream to condense the EO out of the gas stream. The system includes temperature and pressure sensors to determine the conditions in the gas stream, and a control system that evaluates the temperature and pressure data and controls the compressors and chillers to achieve the properties to maximize the condensation of EO out of the gas stream.