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A white paper describing produced water from production of crude oil, natural gas, and coal bed methane.

Description: One of the key missions of the U.S. Department of Energy (DOE) is to ensure an abundant and affordable energy supply for the nation. As part of the process of producing oil and natural gas, operators also must manage large quantities of water that are found in the same underground formations. The quantity of this water, known as produced water, generated each year is so large that it represents a significant component in the cost of producing oil and gas. Produced water is water trapped in unde… more
Date: February 16, 2004
Creator: Veil, J. A.; Puder, M. G.; Elcock, D. & Redweik, R. J., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Landfill Gas Conversion to LNG and LCO{sub 2}. Final Report

Description: This report summarizes work on the development of a process to produce LNG (liquefied methane) for heavy vehicle use from landfill gas (LFG) using Acrion's CO{sub 2} wash process for contaminant removal and CO{sub 2} recovery. Work was done in the following areas: (1) production of natural gas pipeline methane for liquefaction at an existing LNG facility, (2) production of LNG from sewage digester gas, (3) the use of mixed refrigerants for process cooling in the production of LNG, liquid CO{sub… more
Date: October 20, 2000
Creator: Brown, W. R.; Cook, W. J. & Siwajek, L. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Gas-phase chemistry during the conversion of cyclohexane to carbon: Flow reactor studies at low and intermediate pressure

Description: The gas-phase branching during the conversion of cyclohexane to solid carbon has been measured in a high-temperature-flow reactor. The experiments show that cyclohexane decomposes into a broad distribution of hydrocarbons that further decompose into the more kinetically stable products hydrogen, methane, acetylene, ethylene, benzene, and PAH. At 1363 K, the evolution to these species occurs quickly. We also observe the buildup of significant amounts of aromatic molecules at later stages in the … more
Date: July 1, 1995
Creator: Osterheld, T.H.; Allendorf, M.D. & Larson, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

NOVEL PREPARATION AND MAGNETO CHEMICAL CHARACTERIZATION OF NANO-PARTICLE MIXED ALCOHOL CATALYSTS

Description: We have developed effective nanoparticle incorporated heterogeneous F-T catalysts starting with the synthesis of Fe, Co, Cu nanoparticles using Fe(acac){sub 3}, Co(acac){sub 2}, and Cu(acac){sub 2} precursors and incorporating the nanoparticles into alumina sol-gel to yield higher alkanes production. SEM/EDX, XRD, BET, VSM and SQUID experimental techniques were used to characterize the catalysts, and GC/MS were used for catalytic product analysis. The nanoparticle oxide method gave the highest … more
Date: January 14, 2005
Creator: Naidu, Seetala V. & Siriwardane, Upali
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Enhanced Coal Bed Methane Production and Sequestration of CO2 in Unmineable Coal Seams Progress Report

Description: This is the sixth semi-annual Technical Progress report under the subject agreement. During this report period, progress was made on drilling the north, center, and south well sites. Water production commenced at the center and south well sites. New drilling plans were formulated for the last remaining well, which is in the Upper Freeport Seam at the north site. Core samples were submitted to laboratories for analytical testing. These aspects of the project are discussed in detail in this repor… more
Date: October 1, 2004
Creator: Williams, William A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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METHANE HYDRATE PRODUCTION FROM ALASKAN PERMAFROST

Description: Natural-gas hydrates have been encountered beneath the permafrost and considered a nuisance by the oil and gas industry for years. Engineers working in Russia, Canada and the USA have documented numerous drilling problems, including kicks and uncontrolled gas releases, in arctic regions. Information has been generated in laboratory studies pertaining to the extent, volume, chemistry and phase behavior of gas hydrates. Scientists studying hydrate potential agree that the potential is great--on t… more
Date: July 1, 2004
Creator: Williams, Thomas E.; Millheim, Keith & King, Buddy
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

CO2 Sequestration Potential of Texas Low-Rank Coals Quarterly Report

Description: The objectives of this project are to evaluate the feasibility of carbon dioxide (CO{sub 2}) sequestration in Texas low-rank coals and to determine the potential for enhanced coalbed methane (CBM) recovery as an added benefit of sequestration. The primary objectives for this reporting period were to construct a coal geological model for reservoir analysis and to continue modeling studies of CO{sub 2} sequestration performance in coalbed methane reservoirs under various operational conditions. D… more
Date: February 1, 2004
Creator: Mcvay, Duane A.; Walter B. Ayers, Jr. & Jensen, Jerry L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Infrared absorption spectroscopy and chemical kinetics of free radicals. Final performance report, August 1, 1985--July 31, 1994

Description: This research was directed at the detection, monitoring, and study (by infrared absorption spectroscopy) of the chemical kinetic behavior of small free radical species thought to be important intermediates in combustion. The work typically progressed from the detection and analysis of the infrared spectrum of combustion radical to the utilization of the infrared spectrum thus obtained in the investigation of chemical kinetics of the radical species. The methodology employed was infrared kinetic… more
Date: June 1, 1995
Creator: Curl, R. F. & Glass, G. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Hybrid Sulfur Recovery Process for Natural Gas Upgrading Quarterly Report

Description: This third quarter report of 2003 describes progress on a project funded by the U.S. Department of Energy (DOE) to test a hybrid sulfur recovery process for natural gas upgrading. The process concept represents a low-cost option for direct treatment of natural gas streams to remove H{sub 2}S in quantities equivalent to 0.2-25 metric tons (LT) of sulfur per day. This process is projected to have lower capital and operating costs than the competing technologies, amine/aqueous iron liquid redox an… more
Date: October 1, 2003
Creator: Dalrymple, Dennis
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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STEADY STATE FLAMMABLE GAS RELEASE RATE CALCULATION & LOWER FLAMMABILITY LEVEL EVALUATION FOR HANFORD TANK WASTE

Description: Assess the steady-state flammability level at normal and off-normal ventilation conditions. The hydrogen generation rate was calculated for 177 tanks using the rate equation model. Flammability calculations based on hydrogen, ammonia, and methane were performed for 177 tanks for various scenarios.
Date: October 27, 2005
Creator: HU, T.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

CO2 Sequestration Potential of Texas Low-Rank Coals Quarterly Report

Description: The objectives of this project are to evaluate the feasibility of carbon dioxide (CO{sub 2}) sequestration in Texas low-rank coals and to determine the potential for enhanced coalbed methane (CBM) recovery as an added benefit of sequestration. The main tasks for this reporting period were to correlate well logs and refine coal property maps, evaluate methane content and gas composition of Wilcox Group coals, and initiate discussions concerning collection of additional, essential data with Anada… more
Date: July 1, 2004
Creator: McVay, Duane A.; Walter B. Ayers, Jr. & Jensen, Jerry L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

UPGRADING METHANE USING ULTRA-FAST THERMAL SWING ADSORPTION

Description: The purpose of this project is to design and demonstrate an approach to upgrade low-BTU methane streams from coal mines to pipeline-quality natural gas. The objective of Phase I of the project was to assess the feasibility of upgrading low-Btu methane streams using ultra-fast thermal swing adsorption (TSA) using Velocys' modular microchannel process technology. The project is on schedule and under budget. For Task 1.1, the open literature, patent information, and vendor contacts were surveyed t… more
Date: January 1, 2004
Creator: Tonkovich, Anna Lee
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Methyl chloride via oxyhydrochlorination of methane. Quarterly technical progress report No. 11, April--June 1994

Description: The purpose of this contract is to develop a process for converting light alkane gases to methyl chloride via oxyhydrochlorination using highly selective, stable catalysts in fixed-bed reactors designed to remove the large amount of heat generated, so as to control the reaction temperature. Further, the objective is to obtain the engineering data base necessary for developing a commercially feasible process and to evaluate the economics of the process. Significant progress was made in catalyst … more
Date: November 1, 1994
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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METHANE de-NOX FOR UTILITY PC BOILERS

Description: During the current quarter, pilot scale testing was continued with the modified combustor and modified channel burner using the new PRB coal delivered in late December. Testing included benchmark testing to determine whether the system performance was comparable to that with the previous batch of PRB coal, baseline testing to characterize performance of the PC Burner without coal preheating, and parametric testing to evaluate the effect of various preheat combustor and PC burner operating varia… more
Date: April 1, 2003
Creator: Rabovitser, Joseph; Bryan, Bruce; Nester, Serguei & Wohadlo, Stan
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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ATTRITION RESISTANT IRON-BASED FISCHER-TROPSCH CATALYSTS

Description: Fischer-Tropsch (FT) synthesis to convert syngas (CO + H{sub 2}) derived from natural gas or coal to liquid fuels and wax is a well-established technology. For low H{sub 2} to CO ratio syngas produced from CO{sub 2} reforming of natural gas or from gasification of coal, the use of Fe catalysts is attractive because of their high water gas shift activity in addition to their high FT activity. Fe catalysts are also attractive due to their low cost and low methane selectivity. Because of the highl… more
Date: October 1, 1999
Creator: Jothimurugesan, K.; James G. Goodwin, Jr. & Gangwal, Santosh K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Environmental regulatory drivers for coal bed methane research and development.

Description: In 1999, the National Petroleum Council (NPC) stated that the resource base for meeting growing natural gas demands in the United States is adequate. A significant and increasing portion of natural gas production (8% by 2015) is expected to come from coal bed methane (CBM). The NPC cautions that for this to occur, certain factors, including compliance with environmental requirements, must be addressed. Numerous federal, state, and local programs address a variety of environmental issues, includ… more
Date: October 10, 2002
Creator: Elcock, D.; Gasper, J. & Moses, D. O.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Complete Oxidation of Methane on Palladium Catalysts. Final Report

Description: This is the final report for grant DE-FG02-00ER15026. It summarizes all the accomplishments in these 8 sections: (1) Adaptations on Existing Unit and Construction of New Unit; (2) Turnover Rate and Reaction Orders for the Complete Oxidation of Methane on a Palladium Foil in Excess Dioxygen; (3) Surface area increase on Pd foils after oxidation in excess methane; (4) UV Raman spectroscopic study of hydrogen bonding in gibbsite and bayerite between 93 and 453 K; (5) Coverage of Palladium Catalyst… more
Date: July 17, 2003
Creator: Ribeiro, Fabio H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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DEVELOPMENT OF IMPROVED CATALYSTS FOR THE SELECTIVE CATALYTIC REDUCTION OF NITROGEN OXIDES WITH HYDROCARBONS

Description: Significant work has been done by the investigators on the cerium oxide-copper oxide based sorbent/catalysts for the combined removal of sulfur and nitrogen oxides from the flue gases of stationary sources. A relatively wide temperature window was established for the use of alumina-supported cerium oxide-copper oxide mixtures as regenerable sorbents for SO{sub 2} removal. Preliminary evaluation of these sorbents as catalysts for the selective reduction of NO{sub x} gave promising results with a… more
Date: May 31, 2001
Creator: Akyurtlu, Dr. Ates & Akyurtlu, Dr. Jale F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Case studies in residual use and energy conservation at wastewater treatment plants

Description: The US Environmental Protection Agency (EPA) and the National Renewable Energy Laboratory (NREL) for the US Department of Energy (DOE) funded a study to document energy conservation activities and their effects on operation costs, regulatory compliance, and process optimization at several wastewater treatment plants (WWTPS). The purpose of this report is to review the efforts of wastewater treatment Facilities that use residuals as fuels. Case histories are presented for facilities that have ta… more
Date: June 1, 1995
Creator: Stewart, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Hybrid Sulfur Recovery Process for Natural Gas Upgrading Quarterly Report

Description: This second quarter report of 2002 describes progress on a project funded by the U.S. Department of Energy (DOE) to test a hybrid sulfur recovery process for natural gas upgrading. The process concept represents a low cost option for direct treatment of natural gas streams to remove H{sub 2}S in quantities equivalent to 0.2-25 metric tons (LT) of sulfur per day. This process is projected to have lower capital and operating costs than the competing technologies, amine/aqueous iron liquid redox a… more
Date: July 1, 2002
Creator: Srinivas, Girish; Gebhard, Steven C. & DeBerry, David W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Hydrogen Absorption Property of Encapsulated Lani4.25A10.75

Description: For hydrogen economy to become a reality, hydrogen production will have to be greatly increased from what it is today. Hydrogen will have to be recovered from a variety of gas streams including low concentration streams with efficient methods. Efficient process for recovering hydrogen in low concentration streams is not available today. Powder of LaNi4.25Al0.75 was encapsulated in a porous silica matrix to produce a stable composite material. The material was packed in a column and tested for h… more
Date: July 21, 2003
Creator: Heung, L.K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Hybrid Sulfur Recovery Process for Natural Gas Upgrading Quarterly Report

Description: This fourth quarter report of 2002 describes progress on a project funded by the U.S. Department of Energy (DOE) to test a hybrid sulfur recovery process for natural gas upgrading. The process concept represents a low cost option for direct treatment of natural gas streams to remove H{sub 2}S in quantities equivalent to 0.2-25 metric tons (LT) of sulfur per day. This process is projected to have lower capital and operating costs than the competing technologies, amine/aqueous iron liquid redox a… more
Date: January 1, 2003
Creator: Lundeen, Joe; Srinivas, Girish & DeBerry, David W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

MOLTEN CARBONATE FUEL CELL PRODUCT DESIGN IMPROVEMENT

Description: The carbonate fuel cell promises highly efficient, cost-effective and environmentally superior power generation from pipeline natural gas, coal gas, biogas, and other gaseous and liquid fuels. FuelCell Energy, Inc. has been engaged in the development of this unique technology, focusing on the development of the Direct Fuel Cell (DFC{reg_sign}). The DFC{reg_sign} design incorporates the unique internal reforming feature which allows utilization of a hydrocarbon fuel directly in the fuel cell wit… more
Date: February 1, 2002
Creator: Maru, H.C. & Farooque, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A Mechanistic Model for CO2 Sequestration in Tiffany Coal Bed Methane Field

Description: The objective of this project is to develop mechanistic models specific to CO2 sequestration in BP's Tiffany coal bed methane (CBM) field. In this study, the original field model was modified to match the field performance of a 5-spot pattern in the northern part of the Tiffany Field where BP plans to perform a micro-pilot test. The modified model consists of one high-permeability fast layer sandwiched between two low-permeability slow layers. In this mechanistic model, the fast layer represent… more
Date: May 1, 2003
Creator: Liang, J.; Raterman, K.T. & Robertson, E.P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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