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Applications of Micellar Enzymology to Clean Coal Technology. [Laccase]

Description: This project is designed to develop methods for pre-combustion coal remediation by implementing recent advances in enzyme biochemistry. The novel approach of this study is incorporation of hydrophilic oxidative enzymes in reverse micelles in an organic solvent. Enzymes from commercial sources or microbial extracts are being investigated for their capacity to remove organic sulfur from coal by oxidation of the sulfur groups, splitting of C-S bonds and loss of sulfur as sulfuric acid. Dibenzothio… more
Date: April 27, 1990
Creator: Walsh, C. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

BIOTIGER, A NATURAL MICROBIAL PRODUCT FOR ENHANCED HYDROCARBON RECOVERY FROM OIL SANDS.

Description: BioTiger{trademark} is a unique microbial consortia that resulted from over 8 years of extensive microbiology screening and characterization of samples collected from a century-old Polish waste lagoon. BioTiger{trademark} shows rapid and complete degradation of aliphatic and aromatic hydrocarbons, produces novel surfactants, is tolerant of both chemical and metal toxicity and shows good activity at temperature and pH extremes. Although originally developed and used by the U.S. Department of Ene… more
Date: May 27, 2008
Creator: Brigmon, R; Topher Berry, T; Whitney Jones, W & Charles Milliken, C
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

National Ignition Facility Incorporates P2/E2 in Aqueous Parts Cleaning of Optics Hardware

Description: When completed, Lawrence Livermore National Laboratory's (LLNL) National Ignition Facility (NIF) will be the world's largest laser with experimental capabilities applicable to stockpile stewardship, energy research, science and astrophysics. As construction of the conventional facilities nears completion, operations supporting the installation of specialized laser equipment have come online. Playing a critical role in the precision cleaning of mechanical parts from the NIF beamline are three pi… more
Date: July 27, 2001
Creator: Gabor, K
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Applications of Micellar Enzymology to Clean Coal Technology. Second Quarterly Report

Description: This project is designed to develop methods for pre-combustion coal remediation by implementing recent advances in enzyme biochemistry. The novel approach of this study is incorporation of hydrophilic oxidative enzymes in reverse micelles in an organic solvent. Enzymes from commercial sources or microbial extracts are being investigated for their capacity to remove organic sulfur from coal by oxidation of the sulfur groups, splitting of C-S bonds and loss of sulfur as sulfuric acid. Dibenzothio… more
Date: April 27, 1990
Creator: Walsh, C. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A Liquid Metal Flume for Free Surface Magnetohydrodynamic Experiments

Description: We present an experiment designed to study magnetohydrodynamic effects in free-surface channel flow. The wide aspect ratio channel (the width to height ratio is about 15) is completely enclosed in an inert atmosphere to prevent oxidization of the liquid metal. A custom-designed pump reduces entrainment of oxygen, which was found to be a problem with standard centrifugal and gear pumps. Laser Doppler Velocimetry experiments characterize velocity profiles of the flow. Various flow constraints mit… more
Date: August 27, 2008
Creator: Nornberg, M. D.; Ji, H.; Peterson, J. L. & Rhoads, J. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Improving CO2 Efficiency for Recovering Oil in Heterogeneous Reservoirs

Description: A three-year contract for the project, DOE Contract No. DE-FG26-01BC15364, ''Improving CO{sub 2} Efficiency for Recovering Oil in Heterogeneous Reservoirs'', was started on September 28, 2001. This project examines three major areas in which CO{sub 2} flooding can be improved: fluid and matrix interactions, conformance control/sweep efficiency, and reservoir simulation for improved oil recovery. The project has received a one-year, no-cost extension to September 27, 2005. During this extra time… more
Date: March 27, 2004
Creator: Grigg, Reid B.; Svec, Robert K.; Zeng, Zheng-Wen; Yi, Liu & Bai, Baojun
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Improving CO2 Efficiency for Recovering Oil in Heterogeneous Reservoirs

Description: The third annual report of ''Improving CO{sub 2} Efficiency for Recovery Oil in Heterogeneous Reservoirs'' presents results of laboratory studies with related analytical models for improved oil recovery. All studies were designed to optimize utilization and extend the practice of CO{sub 2} flooding to a wider range of reservoirs. Chapter 1 describes the behavior at low concentrations of the surfactant Chaser International CD1045{trademark} (CD) versus different salinity, pressure and temperatur… more
Date: September 27, 2004
Creator: Grigg, Reid B.; Svec, Robert K.; Zeng, Zhengwen; Bai, Baojun & Liu, Yi
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A test to illustrate the effects of BioSolve on the mobility of contaminated soils

Description: Mountain States BioSolve manufactures products for in-situ bioremediation projects. One of their products, BioSolve, desorbs and emulsifies hydrocarbons in a contaminated substrate. BioSolve is a blend of water-based, biodegradable surfactants which were engineered as a clean-up and mitigation agent for hydrocarbon products. Its basic mechanism is to emulsify the hydrocarbon into small encapsulated particles in a water/oxygen-bearing solution, desorbing hydrocarbon molecules from soil particles… more
Date: May 27, 1999
Creator: Jackson, Lorri M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Optimization of Surfactant Mixtures and Their Interfacial Behavior for Advanced Oil Recovery

Description: The goal of this report is to develop improved extraction processes to mobilize and produce the oil left untapped using conventional techniques. Current chemical schemes for recovering the residual oil have been in general less than satisfactory. High cost of the processes as well as significant loss of chemicals by adsorption on reservoir materials and precipitation has limited the utility of chemical-flooding operations. There is a need to develop cost-effective, improved reagent schemes to i… more
Date: February 27, 2001
Creator: Somasundaran, Prof. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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