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Multitasking mesoporous nanomaterials for biorefinery applications

Description: Mesoporous silica nanoparticles (MSNs) have attracted great interest for last two decades due to their unique and advantageous structural properties, such as high surface area, pore volume, stable mesostructure, tunable pore size and controllable particle morphology. The robust silica framework provides sites for organic modifications, making MSNs ideal platforms for adsorbents and supported organocatalysts. In addition, the pores of MSNs provide cavities/ channels for incorporation of metal an… more
Date: May 2, 2013
Creator: Kandel, Kapil
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
open access

Performance Validation and Scaling of a Capillary Membrane Solid-Liquid Separation System

Description: Algaeventure Systems (AVS) has previously demonstrated an innovative technology for dewatering algae slurries that dramatically reduces energy consumption by utilizing surface physics and capillary action. Funded by a $6M ARPA-E award, transforming the original Harvesting, Dewatering and Drying (HDD) prototype machine into a commercially viable technology has required significant attention to material performance, integration of sensors and control systems, and especially addressing scaling iss… more
Date: October 25, 2011
Creator: Rogers, S.; Cook, J.; Juratovac, J.; Goodwillie, J.; Burke, T. & Stuart, B., ed.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Hopewell Beneficial CO2 Capture for Production of Fuels, Fertilizer and Energy

Description: For Phase 1 of this project, the Hopewell team developed a detailed design for the Small Scale Pilot-Scale Algal CO2 Sequestration System. This pilot consisted of six (6) x 135 gallon cultivation tanks including systems for CO2 delivery and control, algal cultivation, and algal harvesting. A feed tank supplied Hopewell wastewater to the tanks and a receiver tank collected the effluent from the algal cultivation system. The effect of environmental parameters and nutrient loading on CO2 uptake an… more
Date: September 30, 2010
Creator: UOP LLC
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Hydrogen Production Cost Estimate Using Biomass Gasification: Independent Review

Description: This independent review is the conclusion arrived at from data collection, document reviews, interviews and deliberation from December 2010 through April 2011 and the technical potential of Hydrogen Production Cost Estimate Using Biomass Gasification. The Panel reviewed the current H2A case (Version 2.12, Case 01D) for hydrogen production via biomass gasification and identified four principal components of hydrogen levelized cost: CapEx; feedstock costs; project financing structure; efficiency/… more
Date: October 1, 2011
Creator: Ruth, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

National 2010-2011 Survey of E85: CRC Project E-85-2

Description: This study examined the quality of E85 fuel around the country in each of the three volatility classes identified in ASTM D5798-10. Samples were collected from pumps in 21 states between July 2010 and May 2011, with almost 40 samples collected in each class. Parameters tested to assess fuel quality were volatility, ethanol content, water content, acidity, pHe, inorganic chloride and sulfate, and total sulfate. Class 1 samples more often met the volatility specification than samples from other c… more
Date: December 1, 2011
Creator: Alleman, T. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Renewable Energy and Environmental Sustainability Using Biomass From Dairy and Beef Animal Production: Final Report, Volume 1

Description: The Texas Panhandle is regarded as the 'Cattle Feeding Capital of the World', producing 42% of the fed beef cattle in the United States within a 200-mile radius of Amarillo generating more than 5 million tons of feedlot manure/year. Apart from feedlots, the Bosque River Region in Erath County, just north of Waco, Texas with about 110,000 dairy cattle in over 250 dairies, produces 1.8 million tons of manure biomass (excreted plus bedding) per year. While the feedlot manure has been used extensiv… more
Date: May 3, 2012
Creator: Annamalai, Kalyan; Sweeten, John M.; Auvermann, Brent W.; Muhtar, Saqib; Caperada, Sergio; Engler, Cady R. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A model for improving microbial biofuel production using a synthetic feedback loop

Description: Cells use feedback to implement a diverse range of regulatory functions. Building synthetic feedback control systems may yield insight into the roles that feedback can play in regulation since it can be introduced independently of native regulation, and alternative control architectures can be compared. We propose a model for microbial biofuel production where a synthetic control system is used to increase cell viability and biofuel yields. Although microbes can be engineered to produce biofuel… more
Date: July 14, 2011
Creator: Dunlop, Mary; Keasling, Jay & Mukhopadhyay, Aindrila
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Biogas and Fuel Cells Workshop Summary Report: Proceedings from the Biogas and Fuel Cells Workshop, Golden, Colorado, June 11-13, 2012

Description: The U.S. Department of Energy (DOE) National Renewable Energy Laboratory (NREL) held a Biogas and Fuel Cells Workshop June 11-13, 2012, in Golden, Colorado, to discuss biogas and waste-to-energy technologies for fuel cell applications. The overall objective was to identify opportunities for coupling renewable biomethane with highly efficient fuel cells to produce electricity; heat; combined heat and power (CHP); or combined heat, hydrogen and power (CHHP) for stationary or motive applications. … more
Date: January 1, 2013
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Process Design of Wastewater Treatment for the NREL Cellulosic Ethanol Model

Description: This report describes a preliminary process design for treating the wastewater from NREL's cellulosic ethanol production process to quality levels required for recycle. In this report Brown and Caldwell report on three main tasks: 1) characterization of the effluent from NREL's ammonia-conditioned hydrolyzate fermentation process; 2) development of the wastewater treatment process design; and 3) development of a capital and operational cost estimate for the treatment concept option. This wastew… more
Date: September 1, 2011
Creator: Steinwinder, T.; Gill, E. & Gerhardt, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A case study of agricultural residue availability and cost for a cellulosic ethanol conversion facility in the Henan province of China

Description: A preliminary analysis of the availability and cost of corn stover and wheat straw for the area surrounding a demonstration biorefinery in the Henan Province of China was performed as a case study of potential cooperative analyses of bioenergy feedstocks between researchers and industry in the US and China. Though limited in scope, the purpose of this analysis is to provide insight into some of the issues and challenges of estimating feedstock availability in China and how this relates to analy… more
Date: May 1, 2012
Creator: Webb, Erin & Wu, Yun
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A study of algal biomass potential in selected Canadian regions.

Description: A dynamic assessment model has been developed for evaluating the potential algal biomass and extracted biocrude productivity and costs, using nutrient and water resources available from waste streams in four regions of Canada (western British Columbia, Alberta oil fields, southern Ontario, and Nova Scotia). The purpose of this model is to help identify optimal locations in Canada for algae cultivation and biofuel production. The model uses spatially referenced data across the four regions for n… more
Date: November 1, 2011
Creator: Passell, Howard David; Roach, Jesse Dillon & Klise, Geoffrey T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

Real-Time Imaging of Plant Cell Wall Structure at Nanometer Scale, with Respect to Cellulase Accessibility and Degradation Kinetics

Description: Presentation on real-time imaging of plant cell wall structure at nanometer scale. Objectives are to develop tools to measure biomass at the nanometer scale; elucidate the molecular bases of biomass deconstruction; and identify factors that affect the conversion efficiency of biomass-to-biofuels.
Date: May 1, 2012
Creator: Ding, S. Y.
Item Type: Refine your search to only Presentation
Partner: UNT Libraries Government Documents Department
open access

Costilla County Biodiesel Pilot Project

Description: The Costilla County Biodiesel Pilot Project has demonstrated the compatibility of biodiesel technology and economics on a local scale. The project has been committed to making homegrown biodiesel a viable form of community economic development. The project has benefited by reducing risks by building the facility gradually and avoiding large initial outlays of money for facilities and technologies. A primary advantage of this type of community-scale biodiesel production is that it allows for a r… more
Date: August 25, 2011
Creator: Doon, Ben & Quintana, Dan
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

National Bioenergy Center Biochemical Platform Integration Project Quarterly Update, Summer 2011

Description: Quarterly newsletter describing the activities of the National Bioenergy Center's Biochemical Platform Integration Project including ongoing research and goals. Issue topics: evaluating new analytical techniques for measuring soluble sugars in the liquid portion of biomass hydrolysates, and measurement of the fraction of insoluble solids in biomass slurries.
Date: September 2011
Creator: National Renewable Energy Laboratory (U.S.)
Item Type: Refine your search to only Journal/Magazine/Newsletter
Partner: UNT Libraries Government Documents Department
open access

Western Region Renewable Energy Markets: Implications for the Bureau of Land Management

Description: The purpose of this analysis is to provide the U.S. Department of the Interior (DOI) and the Bureau of Land Management (BLM) with an overview of renewable energy (RE) generation markets, transmission planning efforts, and the ongoing role of the BLM RE projects in the electricity markets of the 11 states (Arizona, California, Colorado, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington, and Wyoming) that comprise the Western Electricity Coordinating Council (WECC) Region. This analysi… more
Date: January 1, 2012
Creator: Haase, S.; Billman, L. & Gelman, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Reducing Enzyme Costs Increases the Market Potential of Biofuels (Fact Sheet)

Description: Cellulosic ethanol prices depend heavily on the cost of the cellulase enzymes used to break down the biomass into fermentable sugars. To reduce these costs, NREL partnered with two leading enzyme companies, Novozymes and Genencor, to engineer new cellulase enzymes that are exceptionally good at breaking down cellulose. Genencor is now part of DuPont Industrial Biosciences.
Date: August 1, 2013
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

FEEDSTOCK-FLEXIBLE REFORMER SYSTEM (FFRS) FOR SOLID OXIDE FUEL CELL (SOFC)- QUALITY SYNGAS

Description: The U.S. Department of Energy National Energy Technology Laboratory funded this research collaboration effort between NextEnergy and the University of Michigan, who successfully designed, built, and tested a reformer system, which produced highquality syngas for use in SOFC and other applications, and a novel reactor system, which allowed for facile illumination of photocatalysts. Carbon and raw biomass gasification, sulfur tolerance of non-Platinum Group Metals (PGM) based (Ni/CeZrO2) reformin… more
Date: July 30, 2010
Creator: Jezierski, Kelly; Tadd, Andrew; Schwank, Johannes; Kibler, Roland; McLean, David; Samineni, Mahesh et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Collaborative Lubricating Oil Study on Emissions: November 28, 2006 - March 31, 2011

Description: The Collaborative Lubricating Oil Study on Emissions (CLOSE) project was a pilot investigation of how fuels and crankcase lubricants contribute to the formation of particulate matter (PM) and semi-volatile organic compounds (SVOC) in vehicle exhaust. As limited vehicles were tested, results are not representative of the whole on-road fleet. Long-term effects were not investigated. Pairs of vehicles (one normal PM emitting, one high-PM emitting) from four categories were selected: light-duty (LD… more
Date: October 1, 2011
Creator: Carroll, J. N.; Khalek, I. A.; Smith, L. R.; Fujita, E. & Zielinska, B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Transgenic Plants Lower the Costs of Cellulosic Biofuels (Fact Sheet)

Description: A new transgenic maize was observed to be less recalcitrant than wild-type biomass, as manifested through lower severity requirements to achieve comparable levels of conversion. Expression of a single gene derived from bacteria in plants has resulted in transgenic plants that are easier and cheaper to convert into biofuels. Part of the high production cost of cellulosic biofuels is the relatively poor accessibility of substrates to enzymes due to the strong associations between plant cell wall … more
Date: November 1, 2011
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Renewable Energy and Environmental Sustainability Using Biomass From Dairy and Beef Animal Production: Volume 2. Cattle Biomass Feedstocks: Properties, Preparation, Logistics and Economics

Description: The Texas Panhandle is regarded as the 'Cattle Feeding Capital of the World', producing 42% of the fed beef cattle in the United States within a 200-mile radius of Amarillo generating more than 5 million tons of feedlot manure/year. Apart from feedlots, the Bosque River Region in Erath County, just north of Waco, Texas with about 110,000 dairy cattle in over 250 dairies, produces 1.8 million tons of manure biomass (excreted plus bedding) per year. While the feedlot manure has been used extensiv… more
Date: May 3, 2012
Creator: Sweeten, John M.; Annamalai, Kalyan; Auvermann, Brent; Mukhtar, Saqib; Capareda, Sergio, C.; Engler, Cady et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Process Design and Economics for Biochemical Conversion of Lignocellulosic Biomass to Ethanol: Dilute-Acid Pretreatment and Enzymatic Hydrolysis of Corn Stover

Description: This report describes one potential biochemical ethanol conversion process, conceptually based upon core conversion and process integration research at NREL. The overarching process design converts corn stover to ethanol by dilute-acid pretreatment, enzymatic saccharification, and co-fermentation. Building on design reports published in 2002 and 1999, NREL, together with the subcontractor Harris Group Inc., performed a complete review of the process design and economic model for the biomass-to-… more
Date: March 1, 2011
Creator: Humbird, D.; Davis, R.; Tao, L.; Kinchin, C.; Hsu, D.; Aden, A. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Advanced Production Surface Preparation Technology Development for Ultra-High Pressure Diesel Injection

Description: In 2007, An Ultra High Injection Pressure (UHIP) fueling method has been demonstrated by Caterpillar Fuel Systems - Product Development, demonstrating ability to deliver U.S. Environment Protection Agency (EPA) Tier 4 Final diesel engine emission performance with greatly reduced emissions handling components on the engine, such as without NOx reduction after-treatment and with only a through-flow 50% effective diesel particulate trap (DPT). They have shown this capability using multiple multi-c… more
Date: April 30, 2012
Creator: Grant, Marion B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Sensitivity of Fischer-Tropsch Synthesis and Water-Gas Shift Catalysts to Poisons from High-Temperature High-Pressure Entrained-Flow (EF) Oxygen-Blown Gasifier Gasification of Coal/Biomass Mixtures

Description: The successful adaptation of conventional cobalt and iron-based Fischer-Tropsch synthesis catalysts for use in converting biomass-derived syngas hinges in part on understanding their susceptibility to byproducts produced during the biomass gasification process. With the possibility that oil production will peak in the near future, and due to concerns in maintaining energy security, the conversion of biomass-derived syngas and syngas derived from coal/biomass blends to Fischer-Tropsch synthesis … more
Date: September 30, 2010
Creator: Davis, Burtron; Jacobs, Gary; Ma, Wenping; Azzam, Khalid; Sparks, Dennis & Shafer, Wilson
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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