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99%pure
80 ppm Tin (IV) Oxide
Process Innovation
Revenue per Year
Rate of Return
Payback Period
100%Biodegradable
1,768 TJ/yr Recovered
2.6M tonnes/yrEffluent
Gautam Chintapenta, Melissa Lehner, Emma-Claire Njiki, Manisha Walia, Sariel Wang, Zi (Iris) Wang, Ophela Zhang
Department of Chemical and Biological Engineering - Group B6____________________________________________
Polylactic Acid (PLA) Plastics from Sugarcane Bagasse
IntroductionProduction of food-safe polylacticacid (PLA) through upcycling ofsugarcane bagasse.
Simultaneous Saccharification andFermentation
Hanoi,Vietnam
265 kT farmwaste diverted
31.5 kT PLAproduced
Lactide Synthesis
$163M 16% 8 yrs
99.7%↓ than feedstock incineration28%↓ than polypropylene production
Environmental
Economic
Combined hydrolysis andfermentation: reduces costSugars instantly consumed:decreases cellulase inhibitionB. coagulans utilizes bothglucose & xylose: high yieldB. coagulans produces onlyL-lactic acid: optically pure
$66MCAPEX
$144M OPEX