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Title: Rheometry of coarse biomass at high temperature and pressure

Source: Biomass and Bioenergy. 99: 69-78.

Author(s)Klingenberg, Daniel J.; Root, Thatcher W.; Burlawar, Shalaka; Scott, C. Tim; Bourne, Keith J.; Gleisner, Roland; Houtman, Carl; Subramaniam, Vish

Publication Year: 2017  View PDF »

Category: Journal Articles
Associated Research Project(s):   FPL-4709-1B  FPL-4716-3A

Abstract: We designed, constructed, and tested a new device that can measure the rheological properties of lignocellulosic biomass slurries with high solids concentrations (>25%) containing large particles (>10 mm), and that can operate at high temperatures (>230 C), high pressures (>2.8 MPa), and low pH (<1.0). Rheological properties measured with this Lignocellulosic Biomass Rheometer (LCBR) are consistent with those measured with another instrument. Biomass samples investigated are yield stress materials, consistent with previous reports. For modest temperatures, the viscosity decreases reversibly with increasing temperature. When the biomass is exposed to sufficiently high temperature and low pH, we observe an irreversible decrease in apparent viscosity, consistent with that expected as hydrolysis reactions reduce the concentration of insoluble solids.

Keywords: Biomass; rheology; rheometer; high temperature; high solids concentration

Publication Review Process: Formally Refereed

File size: 1,024 kb(s)

Date posted: 10/06/2017

This publication is also viewable on Treesearch:  view
RITS Product ID: 88566
Current FPL Scientist associated with this product
Houtman, Carl J.
Chemical Engineer
  

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