17 Mar '13, 11am

ARPA-E to award up to $20M to projects for bioconversion of methane to liquid fuels; seeking The US Departmen...

Biocatalyst Engineering. The low energy efficiency for the bioconversion of methane to liquid fuels by engineered aerobic methanotrophs provides a significant opportunity for improvement, both in activation and in fuel synthesis. For example, ARPA-E notes, the standard Gibbs free energy, ΔG°, of the conversion of methane to n-butanol is 10 times larger than the comparable ΔG° of conversion of glucose to ethanol during yeast fermentation. Most of this energy loss is released in the form of heat, and cannot be recovered in practice. More efficient metabolic pathways can be envisioned. Bioprocess Intensification. A practical process for bioconversion of methane to fuels needs to address a kinetic challenge as well. Several limitations are apparent: the rate of mass transfer of methane to the liquid phase due to low gas solubility; the low rate of product synthesis inherent to...

Full article: http://www.greencarcongress.com/2013/03/remote-20130317.html

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cafegrumpy.com 17 Mar '13, 9pm

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Congress makes moves to close loopholes for fossil fuels

Congress makes moves to close loopholes for fos...

grist.org 16 Mar '13, 12pm

Shutterstock Closing these loopholes would be Congress’ gift to taxpayers. Reps. Jared Polis (D-Colo.) and Matt Cartwright...

Yes. "When creating a new project, Padrino will...

padrinorb.com 18 Mar '13, 3am

Be sure to read the Installation instructions first. You might also want to check out the Getting Started guide for a bett...