(179b) Corn Bale Deconstruction Using Physical Techniques for Improved Anatomical Separation
AIChE Spring Meeting and Global Congress on Process Safety
2022 Spring Meeting and 18th Global Congress on Process Safety Proceedings
Process Development Division
Pilot Plants for Process Scale-up III
Wednesday, April 13, 2022 - 2:00pm to 2:30pm
Corn stover, a mixture of various anatomical fraction of corn plant, often comes with introduced inorganics from the harvest and collection process. The variability of corn stover can be reduced with a combination of size reduction (knife mill, hammer mill etc.) and size separation (air classification, sieving etc.). The combined process, incorporating different air speed and sieving, can generate a fraction of stem & cob each with 75% purity and yield. The physical techniques can also reduce ash content by removing (30%) introduced inorganics. Moreover, low ash content (<7%) husk, sheath and leaves were also generated. The separation of these fractions enables fraction specific processes including reduced cost of pretreatment and fiber-based coproducts.