http://synbioproject.tech/cpi/applications/ethanol-from-gas/
LanzaTech's unique microbial process provides a sustainable pathway to produce ethanol and hydrocarbon fuels as well as platform chemicals that are building blocks to products that have become indispensable in our lives such as rubber, plastics and synthetic fibers. Source
LanzaTech’s gas fermentation process uses carbon-containing gases as both a nutrient and energy source for its proprietary microbes to produce fuels and chemicals. The platform is able to utilize gases that contain carbon monoxide (CO), with or without hydrogen (H2), or gases containing carbon dioxide (CO2)and H2, providing a novel approach to carbon capture and reuse. Source