China researchers develop one-pot course of for direct conversion of cellulose to ethanol

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Researchers in China have developed a one-pot course of for the direct conversion of cellulose to ethanol with a yield of 43.2 C% over a multifunctional catalyst Mo/Pt/WOx, which successfully catalyzes the tandem reactions of cellulose to ethylene glycol (EG) after which to ethanol. A paper on their work is revealed within the journal Joule.


The researchers recommend that the inherent benefits of a chemocatalytic course of in steady operation and scalability will make it a promising different to the present bioprocess for the manufacturing of cellulosic ethanol.

The rising issues over world local weather change have motivated nice curiosity within the utilization of renewable biomass for the manufacturing of fuels and chemical compounds. Amongst numerous platform and end-use merchandise derived from biomass, cellulosic ethanol is crucial one. It’s envisioned that as much as 30% of the transportation fuels can be derived from biomass by the 12 months of 2030 to be able to restrict CO2 emissions, and cellulosic ethanol can be a number one participant as it may be instantly used as a drop-in bio-fuel in gasoline.

The present manufacturing of cellulosic ethanol is predominantly by way of the bioconversion course of. Whereas nice progress has been made in engineering microbes for biofuel manufacturing, the economically viable manufacturing of cellulosic ethanol stays an ideal problem due to the recalcitrance of lignocellulose.

In distinction to the bio-production of cellulosic ethanol, the direct conversion of cellulose to ethanol by a chemical strategy is but to be developed, though a plethora of chemical compounds aside from ethanol have already been synthesized instantly from lignocellulose through numerous chemocatalytic routes. … Herein, we report the one-pot direct conversion of cellulose to ethanol over a multi-functional catalyst Mo/Pt/WOx (2

—Yang et al.

Below a response situation of 245 ˚C and and 6 MPa H2, cellulose was utterly transformed, and the ethanol yield reached 43.2 C%. On this three-component catalyst, the WOx catalyzed the C-C cleavage of cellulose to type glycolaldehyde, whereas the sequential introduction of Pt and Mo to the WOx enabled it not solely to catalyze the hydrogenation of glycolaldehyde to EG but additionally to advertise the C-O cleavage of EG to type ethanol.

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Sources

  • Yang et al. (2019) “One-Pot Manufacturing of Cellulosic Ethanol through Tandem Catalysis over a Multifunctional Mo/Pt/WOx Catalyst,” Joule doi: 10.1016/j.joule.2019.05.020


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