Multiple societal benefits underlie the U.S. Department of Energy’s (DOE) support for a viable and sustainable domestic lignocellulosic advanced biofuels and bioproducts industry. These benefits include ensuring future energy security, lowering greenhouse gases to mitigate…
The Bioenergy Technologies Office is one of the 10 technology development offices within the Office of Energy Efficiency and Renewable Energy at the U.S. Department of Energy. This Multi-Year Program Plan (MYPP) sets forth the goals and structure of the Bioenergy Technologies Office (the Office).
The U.S. trade deficit in petroleum products is finally shrinking. Policies that foster better fuel economy, increased oil production, and expanded use of renewable fuels have helped reduce our reliance on imported fuels from 60% in 2005 to 40% in 2012—and the trend continues.
Biofuels that are produced from biobased materials are a good alternative to petroleum based fuels. They offer several benefits to society and the environment. Producing second generation biofuels is even more challenging than producing first generation biofuels due the complexity of the biomass and issues related to producing, harvesting, and transporting less dense biomass to centralized biorefineries.
Utilization of biomass-based raw materials for the production of chemicals and materials is gaining an increasing interest. Due to the complex nature of biomass, a major challenge in its refining is the development of efficient fractionation and purification processes. Preparative chromatography and membrane filtration are selective, energy-efficient separation techniques which offer a great potential for biorefinery applications.
Techno-economic Analysis and Life-cycle Assessment of Cellulosic Isobutanol and Comparison with Cellulosic Ethanol and N-Butanol
This work presents a detailed analysis of the production design and economics of the cellulosic isobutanol conversion processes and compares cellulosic isobutanol with cellulosic ethanol and n-butanol in the areas of fuel properties and engine compatibility, fermentation technology, product purification process design and energy consumption…
High Gravity and High Cell Density Mitigate Some of the Fermentation Inhibitory Effects of Softwood Hydrolysates
After steam pretreatment of lignocellulosic substrates the fermentation of the biomass derived sugars to ethanol is typically problematic because of both the generally low sugar concentrations that can be supplied and the presence of naturally occurring and process derived inhibitors.