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:
Feb. 25, 2014
Filed:
May. 23, 2012
Process and adsorbent for separating ethanol and associated oxygenates from a biofermentation system
Anil R. Oroskar, Oak Brook, IL (US);
Deepak Sharma, Naperville, IL (US);
David W. House, Arlington Heights, IL (US);
Alice M. Havill, Parnell, NZ;
Anil R. Oroskar, Oak Brook, IL (US);
Deepak Sharma, Naperville, IL (US);
David W. House, Arlington Heights, IL (US);
Alice M. Havill, Parnell, NZ;
Orochem Technologies, Inc., Naperville, IL (US);
Abstract
Disclosed is a process and an adsorbent for the separation of ethanol associated oxygenates from a dilute mixture of ethanol and associated oxygenates in water in the presence of organic compounds derived from a biofermentation process. After pretreatment, the separation is carried out in a simulated moving bed adsorption system employing an stationary phase adsorbent comprising fluorinated carbon or modified C18 silica gel selective for the adsorption of ethanol and associated oxygenates, such as 2,3-butanediol, with a mobile phase desorbent selected from the group consisting of methanol, ethanol, propanol, and methyl tertiary butyl ether. The process is useful for removing water from dilute aqueous mixtures of organic compounds comprising ethanol in dilute concentration in water and produced by fermentation, biomass extraction, biocatalytic and enzymatic processes which are not economically recoverable by conventional distillation methods.