In collaboration with Liquid Lignin Company, an easily processable, flowable lignin has been discovered that can be used to continuously produce a clean-burning, low-ash biofuel from a key paper mill by-product stream.
Separation processes are being investigated that can convert the lignin recovered from a dirty by-product stream into an ultrapure product containing less than 100 ppm metals. Clean lignins such as these can serve as renewable biopolymers for a range of applications.
The fractionation of carbonaceous oligomers via supercritical extraction has been used to produce the lowest mol wt liquid-crystalline PAH oligomer ever observed. Advanced-materials applications are anticipated.
Rapid expansion of sub- and supercritical solutions into liquid solvents (RESOLV) process for encapsulation of bioactive agents in polymeric nanoparticles
Rapid expansion of sub- and supercritical solutions into liquid solvents (RESOLV) process has been used to fabricate bioactive compound-loaded polymeric nanoparticles with tunable particle size, loading capacity, and release profile. Renewable biopolymers such as poly(L-lactide) and lignins are being investigated as encapsulating matrices for natural oxidative labile bioactive agents (e.g., catechins and curcuminoids).
CollaboratorsJohn Blackburn and Michael Lake Liquid Lignin Co.
Alex Briseño UMass Amherst
Robert Enick Pittsburgh
David Hodge Michigan State
Wes Hoffman AFRL
James Klett ORNL
Amporn Sane Kasetsart Univ.
Jeremy Smith ORNL
Jim Watkins UMass Amherst
David Bruce, Ken Marcus, Amod Ogale, Mark Roberts, Yi Zheng Clemson