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. 17, 2021
Filed:
Dec. 20, 2019
Lanzatech, Inc., Skokie, IL (US);
Allan Haiming Gao, Skokie, IL (US);
Robert John Conrado, Skokie, IL (US);
Derek Wayne Griffin, Skokie, IL (US);
Peng Tian, Skokie, IL (US);
LanzaTech, Inc., Skokie, IL (US);
Abstract
The disclosure is directed to a method for recovering products from a fermentation broth. The disclosure relates to the use of extractive distillation and/or dehydration to recover products which have close boiling points, such as ethanol and isopropanol, from a fermentation broth. In an embodiment, the recovery of product is completed in a manner that minimizes stress on the microbial biomass, such that it remains viable, at least in part, and may be recycled and reused in the fermentation process, which may result in increased efficiency in the fermentation process. The extractive distillation vessel and/or dehydration reactor may be used downstream of a distillation vessel. To minimize stress on the microbial biomass the distillation vessel may be under vacuum. The extractive distillation vessel may be used alongside a separation vessel such that the separation vessel is capable of recycling extractive distillation agent.