Lignocellulose, or dry plant matter, is the most abundantly available raw material for the production of biofuels. But how can we improve the production of fuels and chemicals from lignocellulosic biomass? And how do we deal with heterogeneous biomass?
Join Professor Renata Bura this Wednesday, February 13, as she tackles these questions in Week 6 of the SEFS Seminar Series!
Additional Background: Professor Bura is part of the Biofuels and Bioproducts Laboratory (BBL), which includes Shannon Ewanick, Brian Marquardt, Rick Gustafson, Erik Budsberg and Jordan Crawford. Here’s what she says about the lab’s work and her seminar presentation:
Improvements in individual processes (pretreatment, saccharification and fermentation) have been ongoing, but few researchers have considered the effect that the incoming heterogeneous raw biomass can have on the process. Even within the same species, biomass is physically and chemically very heterogeneous due to the agronomy practices, water and nutrients management, weed control, harvest and storage, seasonal changes, and age. Rather than designing a biorefinery around an ideal source of a given feedstock, it is preferable to understand how we can process heterogeneous feedstock. How can we alter the heterogeneous biomass to provide the maximum yield of hydrolysable and fermentable sugars from whatever is available?
In this presentation we discuss how by preconditioning of biomass, online reaction control, techno-economic and life cycle analysis we can deal with heterogeneous biomass such as switchgrass, sugarcane bagasse and hybrid poplar. We will present that by improving the uniformity of heterogeneous biomass in terms of moisture content, we could improve sugar yields by 28 percent. Another means of dealing with heterogeneous biomass is to improve overall process control by increasing the level of data collection. We will show how Raman spectroscopy could provide early detection of feedstock heterogeneity, leading to increased real-time awareness. Finally, when processing heterogeneous biomass, overall results of the techno-economic analysis have to be incorporated into life cycle assessment work to estimate life cycle greenhouse gas emissions from mixed lignocellulosics.