2011

Modified AnoporeTM Hybrid Membranes for the Microfiltration of Cellulose Acid Hydrolysis Mixtures

Oct 18, 2011

Yong-Hong Zhao

Three classes of nonfouling substances, poly[poly(ethylene glycol) methyl ether methacrylate] (POEM), poly(sulfobetaine methacrylate) (PSBMA), and perfluoroalkyl tagged poly(ethylene glycol) surfactants (fPEG), were covalently tethered onto the surface of Anopore TM membranes (nominal pore size 0.2...

Time Dependent Implementation of Argonne's Model for Universal Solvent Extraction

Oct 18, 2011

Kurt Frey

Argonne’s Model for Universal Solvent Extraction (AMUSE) simulates multi-stage aqueous solvent extraction processes for components of interest to spent nuclear fuel reprocessing. The current work has incorporated time dependency into the simulation; the original AMUSE program was used for steady-...

Assessment of Filter Conditioning During Cross-Flow Filtration of Simulated Tank Waste

Oct 18, 2011

Philip P. Schonewill

Crossflow filtration is to be a key process in the treatment and disposal of approximately 60,000 metric tons of high-level waste stored at the Hanford Site in Richland, Washington. Pacific Northwest National Laboratory (PNNL) is assessing filter performance against waste simulant materials that...

Mechanistic Investigation of Drug Release From Asymmetric Membrane Tablets

Oct 18, 2011

Mary T. am Ende

An asymmetric membrane (AM) tablet was developed for a soluble model compound to study the in vitro drug release mechanisms in challenge conditions, including osmotic gradients, concentration gradients, and under potential coating failure modes. Porous, semipermable membrane integrity may be...

Cellulase Inhibition by Pretreatment-Released Biomass Degradation Products

Oct 18, 2011

G. Peter van Walsum

The influence of pretreatment chemistry and the severity of dilute acid pretreatment on the subsequent enzymatic hydrolysis of soluble oligomer-derived and insoluble crystalline cellulose using a commercial enzyme preparation (Novozymes) was investigated. A dilute acid pretreatment was performed on...

Evaluation of Membrane Separations Opportunities within Lignocellulosic Biorefining Processes: Tailoring Membrane Properties

Oct 18, 2011

Jennifer M. Leberknight

Evaluation of Membrane Separations Opportunities within Lignocellulosic Biorefining Processes: Tailoring Membrane Properties Jennifer Leberknight, Amitkumar Gautam, and Todd J. Menkhaus South Dakota School of Mines and Technology Department of Chemical and Biological Engineering 501 East Saint...

Preparation and Testing of Adsorbents for the Separation of Ionic Liquids From HMF

Oct 18, 2011

Yuxiang Rao

HMF is an important chemical product since it has the potential to be used as a feedstock to replace petroleum-derived aromatics for production of a range of specialty chemicals and plastics.In this work, we will demonstrate an economically-viable, ionic liquid catalytic process for conversion of...

Co-Utilization of Methane In Steam-Biomass Gasification Using Concentrated Solar Energy

Oct 18, 2011

Aaron W. Palumbo

Presented is a novel gasification application where biomass is steam-gasified and natural gas is steam-reformed simultaneously in a solar reactor. Solar-driven gasification is a proven technology, and can augment the biofuel industry as a domestic fuel source. Gasification performed in an...

Understanding the Impact of the Properties of Raw Materials Onto Product Quality Using JR-PLS

Oct 18, 2011

Salvador García-Muñoz

Multiple proposals are found in literature to analyze the impact of raw materials onto product using data analysis. From the methods proposed, the L-PLS is the only method that not only considers the ratio in which ingredients are mixed, but also the physical properties of the lots of raw material...

Production of Synthetic Paraffin Kerosene by Hydrocracking Fischer-Tropsch Wax

Oct 18, 2011

H. Nicholas Conkle

The US Air Force has committed to an alternative aviation-fuel initiative to implement a roadmap for testing and certifying alternative fuel components including biomass-derived alternatives produced from non-food plants, animal fats, and algae, as well as synthetic fuel components derived from...

A Future Energy Supply Based on Liquid Organic Hydrogen Carriers (LOHC)

Oct 18, 2011

Daniel Teichmann

This lecture describes a concept for the establishment of a competitive energy distribution network based on Liquid Organic Hydrogen Carrier (LOHC) compounds. These compounds are characterized by the fact that they can be loaded and un-loaded with considerable amounts of hydrogen in a cyclic...

Lignin Depolymerization and Deoxygenation In Ionic Liquids

Oct 18, 2011

Blair J. Cox

Lignin, an amorphous aromatic biopolymer that comprises up to 30% of plant matter, was dissolved and depolymerized in ionic liquids under acidic conditions. The acidic ionic liquid 1-methylimidazolium chloride (HMIMCl) acts as a combination solvent and catalyst that facilitates degradation of...

Which Fractionation Process Can Overcome Techno-Economic Hurdles of a Lignocellulosic Biorefinery?

Oct 18, 2011

Adriaan van Heiningen

Lignocellulosics are considered as feed stock for transportation fuels and chemicals because they address two pressing global issues; climate change and “peak oil”. The collection and processing of wood at centralized facilities is already practiced by the forest products industry. Therefore, the...

New Catalytic Technology for Converting Heavy Oils Derived From Alberta Oil Sands Into Petrochemical Feedstock

Oct 18, 2011

Vasily Simanzhenkov

Oil sands operations in Alberta are poised to experience significant growth over the next number of years. Production of 1.31 million bbl/day of synthetic crude oil and bitumen blends from oil sands in 2008 is projected to increase to over 3 million bbl/day by 2018. This guarantees a large output...

Pilot Test for Fischer-Tropsch Synthesis Using a Fixed Bed Compact Heat Exchange Reactor

Oct 18, 2011

Hani Gadalla

Abstract A fixed-bed compact heat exchange reactor (CHER) was designed and constructed for by Chart Fischer-Tropsch (FT) reaction. This reactor contained a plate-fin structure with layers of mini-channels (channels having ~5 mm equivalent diameter) containing a total of 80 g of cobalt based...

The Role of Acidic Catalyst Support On the Catalytic Upgrading of Bio-Oils

Oct 18, 2011

Sunya Boonyasuwat

Catalytic conversion of bio-oil vapor has attracted considerable interest as a promising pathway for upgrading. In this work, the reaction of anisole and guaiacol, phenolic model compounds commonly existing in bio-oils, were studied over an acidic silica-alumina catalyst and at varying space times...

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