HNEI researchers demonstrated a combination of microbial biosynthesis and thermal catalysis in conversion of biomass syngas into bio-oil. HNEI developed a bacterial strain having efficient CO2 reduction with hydrogen. The metabolic products (cell mass) primarily included polyester. The polyester was converted into bio-oil in a thermal reforming catalysed with phosphoric acid. This technology yielded more than 90% conversion of the cell mass and generation of about 60% of bio-oil, comparing favorably with direct thermal cracking of sugarcane bagasse (27% cell mass conversion and generation of about 14% of bio-oil). Building on earlier results researchers tested the process using a solid phosphoric acid as a catalyst. They were able to produce high quality bio-oils, a light gasoline-grade biofuel and a heavy biodiesel-grade biofuel, in a simple one-pot reaction.
Point Person: Jian Yu
Papers & Proceedings
- 2015, S. Kang, J. Yu, A gasoline-grade biofuel formed from renewable polyhydroxybutyrate on solid phosphoric acid, Fuel, Vol. 160, pp. 282–290
- 2015, S. Kang, J. Yu, Reaction routes in catalytic reforming of poly(3-hydroxybutyrate) into renewable hydrocarbon oil, RSC Advances, Vol. 5, Issue 38, pp. 30005–30013
- 2014, S. Kang, J. Yu, One-pot production of hydrocarbon oil from poly(3-hydroxybutyrate), RSC Advances, Vol. 4, Issue 28, pp. 14320–14327
- 2013, J. Yu, A. Dow, S. Pingali, The energy efficiency of carbon dioxide fixation by a hydrogen-oxidizing bacterium, International Journal of Hydrogen Energy, Vol. 38, Issue 21, pp. 8683–8690