Daniel J. Schell

TL;DR: In this paper, a continuous 1 t/d reactor was used to pre-treat corn stover at 20% solids concentration over a range of conditions encompassing residence times of 3-12 min, temperatures of 165-195 degrees C, and H2SO4 concentrations of 0.5-1.4% (w/w).

TL;DR: To better characterize pretreatment and assess its kinetics, corn stover was pretreated in a continuous 1 t/d reactor and some of the pretreated solids were tested in a simultaneous saccharification and fermentation process to measure the reactivity of their cellulose component to enzymatic digestion by cellulase enzymes.

TL;DR: It was demonstrated that this enzyme inhibition in high-solids PCS slurries can be approximated using a synthetic hydrolyzate composed of pure sugars supplemented with a mixture of acetic acid, furans, and phenolic compounds, which indicates that generally all of the reaction rate-determining soluble compounds for this system can be approximation synthetically.

TL;DR: This work utilizes both insights obtained from experimental work and kinetic modeling to develop an optimization strategy for cellulose saccharification at insoluble solids levels greater than 15% (w/w), where mixing in stirred tank reactors (STRs) becomes problematic.

TL;DR: Under the tested conditions COSLIF treatment breaks down lignocellulose structure more extensively than DA treatment, producing a more enzymatically reactive material with a higher CAC accompanied by faster hydrolysis rates and higher enzymatic digestibility.