Oklahoma State University

Brigham Young University

Hasan K Atiyeh

John Randall Phillips

Raymond L Huhnke

Randy S Lewis

Biocatalytic conversion systems and methods of producing and using same that have improved yields are disclosed. The systems and methods involve co-fermentation of sugars and gaseous substrates for alcohol, ketone, and/or organic acid production. The systems and methods may include biocatalytically converting at least one sugar substrate into at least one of alcohol, at least one ketone, and/or at least one organic acid. The systems and methods may further include biocatalytically converting gases that comprise COand Hto at least one alcohol and/or at least one organic acid, thereby adding extra revenue to biorefineries.

System and method of biocatalytic conversion for production of alcohols, ketones, and organic acids

Controlling the gas inlet flow rate and energy input to a fermentation reactor to maximize conversion of syngas by maximizing uptake of hydrogen into a medium relative to carbon dioxide and carbon monoxide based on determined volumetric mass transfer coefficients for hydrogen, carbon monoxide, and carbon dioxide.

Fermentation control for optimization of syngas utilization

Providing a microbial catalyst in a reaction broth, providing an adsorptive solid into the reaction broth, providing a producer gas into the reaction broth, and obtaining a fermentation product from the reaction broth resulting from activity of the microbial catalyst in the presence of the adsorptive solid.

Method improving producer gas fermentation

According to an embodiment, there is provided herein a system and method wherein knowledge of the syngas fermentation is combined with standard instrumentation to provide a stable control of gas supply to automatically poise the fermentation to provide both high conversion of CO and H, and high selectivity for production of ethanol. The control is based on an automatic feedback loop that corrects for operational imbalance and maintains a stable continuous fermentation required for commercial operation. In a further embodiment, feed of syngas to ethanol fermentation can be optimally controlled using the pH of the broth as the input variable for flow control of the gas. This concept will automatically maintain the correct supply of syngas to the fermentation, and provide stable operation at optimal rates.

Growing community of inventors

Stillwater, OK, United States of America

Hasan K Atiyeh