Synata Bio, Inc.

Steven G Calderone

Rathin Datta

Robert F Hickey

Jianxin Du

Richard E Tobey

High conversion efficiency processes are disclosed for the anaerobic bioconversion of syngas to alcohol. The processes use bioreactors that have a non-uniform gas composition and a substantially uniform liquid composition such as deep tank bioreactors. By maintaining certain electron to carbon mole ratios in the syngas feed to the bioreactors and certain partial pressures of carbon dioxide in the off gas from the bioreactors, at least about 80 percent of the hydrogen and at least about 95 percent of the carbon monoxide in the feed can be consumed.

Processes and control systems for high efficiency anaerobic conversion of hydrogren and carobon oxides to alcohols

Integrated processes are disclosed for the anaerobic bioconversion of syngas to alcohol.

Integrated processes for anaerobic conversion of hydrogen and carbon oxides to alcohol

Processes and control systems for high efficiency anaerobic conversion of hydrogen and carbon oxides to alcohols

Integrated processes are disclosed for the anaerobic bioconversion of syngas to alcohol wherein a gas substrate of carbon monoxide, hydrogen and carbon dioxide is in contact with an aqueous menstruum that continuously contacts the gas substrate with said aqueous menstruum to produce alcohol and a depleted gas phase that is continuously withdrawn from the aqueous menstruum; continuously or intermittently and the gas substrate is made up of at least two gases having different compositions to provide an overall gas substrate having a ratio of electrons to carbon atoms in the range of about 5.2:1 to 6.8:1.

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Chicago, IL, United States of America

Steven G Calderone