donate now
Truly Sustainable Renewable Future
April 17, 2012 – 10:42 am | No Comment

Advanced Biofuels are high-energy liquid transportation fuels derived from: low nutrient input/high per acre yield crops; agricultural or forestry waste; or other sustainable biomass feedstocks including algae.  The key word is “sustainable.”
A technical definition that …

Read the full story »
Business News/Analysis

Federal Legislation

Political news and views from Capitol Hill.

More Coming Events

Conferences and Events List in Addition to Coming Events Carousel (above)

Original Writing, Opinions Advanced Biofuels USA

Sustainability

Home » Forestry/Wood, Process, R & D Focus

Mixing Lignocellulosic Slurries Presents Challenges

Submitted by on October 30, 2012 – 7:00 pmNo Comment

by Gregory T. Benz  (Ethanol Producer Magazine/Benz Technology International Inc.)  Lignocellulosic slurries have long been used for paper production as well as for feedstock for water-soluble polymer production, such as carboxy methyl cellulose. More recently, they have been used as the feedstock for cellulosic ethanol and other biofuels.

Such slurries usually behave as Herschel-Bulkley fluids, with pseudoplastic behavior above the fluid yield stress. Achieving complete fluid motion requires overcoming the yield stress everywhere in the vessel. Proper design with multiple impellers can avoid wasting energy caused by over-agitating some regions of the tank, and can be used to minimize total agitator power.  READ MORE

Tags:

Comments are closed.