US 11,807,592 B2
Process for recovering close boiling products
Allan Haiming Gao, Skokie, IL (US); Robert John Conrado, Skokie, IL (US); Derek Wayne Griffin, Skokie, IL (US); and Peng Tian, Skokie, IL (US)
Assigned to LanzaTech, Inc., Skokie, IL (US)
Filed by LanzaTech, Inc., Skokie, IL (US)
Filed on Jul. 28, 2021, as Appl. No. 17/443,929.
Application 17/443,929 is a division of application No. 16/723,354, filed on Dec. 20, 2019, granted, now 11,091,415.
Claims priority of provisional application 62/803,120, filed on Feb. 8, 2019.
Prior Publication US 2021/0355055 A1, Nov. 18, 2021
Int. Cl. C07C 1/24 (2006.01); C07C 29/84 (2006.01); C07C 45/81 (2006.01); C07C 11/06 (2006.01); B01J 21/04 (2006.01); B01J 2/12 (2006.01); C07C 11/04 (2006.01); B01D 3/40 (2006.01); B01D 3/34 (2006.01); B01D 3/10 (2006.01)
CPC C07C 1/24 (2013.01) [B01J 2/12 (2013.01); B01J 21/04 (2013.01); C07C 11/04 (2013.01); C07C 11/06 (2013.01); C07C 29/84 (2013.01); C07C 45/81 (2013.01); B01D 3/10 (2013.01); B01D 3/34 (2013.01); B01D 3/40 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A method for recovering product from a fermentation broth, the method comprising:
a) passing a product enriched stream, comprising ethanol and isopropanol, from a bioreactor to a dehydration reactor;
b) dehydrating the product enriched stream to produce a dehydrated product stream comprising ethylene and propylene, and a water-rich stream;
c) separating the dehydrated product stream into an ethylene enriched stream and a propylene enriched stream; and
d) passing the water-rich stream to the bioreactor.