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Countercurrent Process for Lignin Separation from Biomass Matrix

Description: The overall goal of the project was to test the concept of using a twin-screw extruder to conduct autohydrolysis pretreatment of wheat straw in countercurrent fashion, demonstrate in situ solid/liquid separation, and produce a low-lignin cellulose product using ethanol as an extractant. The resultant solid product is suitable for sugar production through enzymatic hydrolysis and for pulp applications. Pilot-scale equipment was used to successfully demonstrate the process both for sugar and pulp… more
Date: March 31, 2006
Creator: Kadam, Kiran & Lehrburger, Ed
Partner: UNT Libraries Government Documents Department
open access

Development of Geothermally Assisted Process for Production of Liquid Fuels and Chemicals from Wheat Straw

Description: Recently there has been much interest in developing processes for producing liquid fuels from renewable resources. The most logical long term approach in terms of economics derives the carbohydrate substrate for fermentation from the hydrolysis of cellulosic crop and forest residues rather than from grains or other high grade food materials (1,2). Since the presence of lignin is the main barrier to the hydrolysis of cellulose from lignocellulosic materials, delignification processes developed b… more
Date: June 1, 1981
Creator: Murphy, V. G.; Linden, J. C.; Moreira, A. R. & Lenz, T. G.
Partner: UNT Libraries Government Documents Department
open access

Assessment of the IVA3 code for multifield flow simulation. Formal report

Description: This report presents an assessment of the IVA3 computer code for multifield flow simulation, as applied to the premixing phase of a hypothetical steam explosion in a water-cooled power reactor. The first section of this report reviews the derivation of the basic partial differential equations of multifield modeling, with reference to standard practices in the multiphase flow literature. Basic underlying assumptions and approximations are highlighted, and comparison is made between IVA3 and othe… more
Date: July 1, 1995
Creator: Stewart, H. B.
Partner: UNT Libraries Government Documents Department
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