A Systematic Review of Syngas Bioconversion to Value-Added Products from 2012 to 2022

Synthesis gas (syngas) fermentation is a biological carbon fixation process through which carboxydotrophic acetogenic bacteria convert CO, CO2, and H2 into platform chemicals. To obtain an accurate overview of the syngas research innovation from 2012 to 2022, systematic search was performed on Web Science The Lens, focusing academic publications patents that were published or granted during this period. Overall, focus centered optimization, genetic manipulation microorganisms, bioreactor design, in order increase plethora products expand their possible applications. Most initially funded developed United States America. However, over years, European countries have become major contributors research, followed by China. Syngas seems be developing at “two-speeds”, with small number companies controlling technology needed for large-scale applications, while academia still focuses low readiness level (TRL) research. This review also showed raw syngas, effects impurities acetogen viability product distribution, integration gasification are currently underdeveloped topics, investment achieve technological breakthroughs.