SEFS Seminar Series: Week 6 Preview

Biofuels Slide

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!

The seminars, held in Anderson 223 on Wednesdays from 4 to 5 p.m., are open to all faculty, staff and students. Check out the rest of the seminar schedule for the Winter Quarter, and join us each week for a reception in the Forest Room from 5 to 6:30 p.m.

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.

Join us on tomorrow to learn more!

BBL Graphic © Renata Bura. 

SEFS Seminar Series: Speakers & Topics Announced

Seminar SeriesStarting on January 9, 2013, Director Tom DeLuca will kick off the SEFS Seminar Series (SEFS 550F) for the Winter Quarter with an introduction and the first topic, “Nitrogen dynamics in boreal ecosystems.” Check out the rest of the schedule below, and mark your calendars today!

The seminars, held in Anderson 223 on Wednesdays from 4 to 5 p.m., are open to all faculty, staff and students. Each week, a reception will follow in the Forest Room from 5 to 6:30 p.m. (Graduate students can receive course credit for attending 9 of 10 seminars by registering for SEFS 550F, SLN 20703. Please email sefsadv@uw.edu if you have any trouble registering.)

Seminar Schedule

1/9/2013
Introduction to SEFS Graduate Seminar Series: Nitrogen dynamics in boreal ecosystems
Tom DeLuca

1/16/2013
The really hidden half of the hidden half: The role of deep soil in forest ecocystem processes
Robert Harrison

1/23/2013
Suffer the Buffers: Population Growth and Resource Degradation in Pre-Modern China
Stevan Harrell

1/30/2013
Cost-effective subwatershed targeting of agricultural conservation practices to address Gulf of Mexico hypoxia
Sergey Rabotyagov

2/6/2013
Environmental stewardship, social equity and corporate profitability: Siblings or strangers?
Dorothy Paun

2/13/2013
How can we improve the production of fuels and chemicals from lignocellulosic biomass?
Renata Bura

2/20/2013
Reintroducing the water cycle in urban areas
Sally Brown

2/27/2013 (Doubleheader)
3 p.m.: Managing for resilience: Sustaining mountaintop ecosystems in the presence of white pine blister rust
Anna Schoettle

4 p.m.:  Chaos in federal forest policy in PNW: The situation and a proposal
Jerry Franklin

3/6/2013
No seminar scheduled.

3/13/2013
Modeling greenup constraints in spatial forest planning
Sándor Toth

3/20/2013
TBD