Resource Type

12 Matching Results

Results open in a new window/tab.

Bioconversion of coal derived synthesis gas to liquid fuels. Quarterly technical progress report, January 1, 1994--March 31, 1994 (open access)

Bioconversion of coal derived synthesis gas to liquid fuels. Quarterly technical progress report, January 1, 1994--March 31, 1994

The overall objective of the project is to develop an integrated two-stage fermentation process for conversion of coal-derived synthesis gas to a mixture of alcohols. This is achieved in two steps. In the first steps, Butyribacterium methylotrophicum converts carbon monoxide (CO) to butyric and acetic acids. Subsequent fermentation of the acids by Clostridium acetobutylicum leads to the production of butanol and ethanol.
Date: April 15, 1994
Creator: Jain, M. K.; Worden, R. M. & Grethlein, H.
System: The UNT Digital Library
Enhancing the use of coals by gas reburning-sorbent injection. Quarterly report No. 26, January 1--March 31, 1994 (open access)

Enhancing the use of coals by gas reburning-sorbent injection. Quarterly report No. 26, January 1--March 31, 1994

The objective of this project is to evaluate and demonstrate a cost effective emission control technology for acid rain precursors, oxides of nitrogen (NO{sub x}) and sulfur (SO{sub x}), on two coal fired utility boilers in Illinois. The units selected are representative of pre-NSPS design practices: tangential and cyclone fired. Work on a third unit, wall fired, has been stopped because of funding limitations. The specific objectives are to demonstrate reductions of 60 percent in NO{sub x} and 50 percent in SO{sub x}, emissions, by a combination of two developed technologies, gas reburning (GR) and sorbent injection (SI). With GR, about 80-85 percent of the coal fuel is fired in the primary combustion zone. The balance of the fuel is added downstream as natural gas to create a slightly fuel rich environment in which NO{sub x} is converted to N{sub 2}. The combustion process is completed by overfire air addition. SO{sub x} emissions are reduced by injecting dry sorbents (usually calcium based) into the upper furnace. The sorbents trap SO{sub x} as solid sulfates that are collected in the particulate control device. This project is conducted in three phases at each site: (1) Design and Permitting, (2) Construction and Startup, …
Date: April 15, 1994
Creator: unknown
System: The UNT Digital Library
Evaluation of gas-reburning and low NO{sub x} burners on a wall fired boiler. Technical progress report No. 14, January 1, 1994--March 31, 1994 (open access)

Evaluation of gas-reburning and low NO{sub x} burners on a wall fired boiler. Technical progress report No. 14, January 1, 1994--March 31, 1994

Clean Coal Technology (CCT) implies the use of coal in an environmentally acceptable manner. Coal combustion results in the emission of oxides of nitrogen (NO{sub x}), which are precursors of both acid rain and ozone formation. The primary objective of this CCT project is to evaluate the use of Gas Reburning and Low NO{sub x} Burners (GR-LNB) for NO{sub x} emission control from a wall fired boiler. It is anticipated that, if the demonstration is successful, the GR-LNB technology could become commercialized during the 1990`s and will be capable of (1) achieving significant reduction in the emissions of nitrogen oxides and sulfur dioxide (another acid rain precursor) from existing facilities to minimize environmental impacts such as transboundary and interstate pollution and/or (2) providing for future energy needs in an environmentally acceptable manner. Phase III of the project was approved and commenced on April 15, 1992. Phase III activities during this reporting period involved the continuation of long term testing and the extension of the program through 6-30-95. Additional funds were also allocated and changes in the workscope of Phase III were made to include Gas Reburning System Enhancements.
Date: April 15, 1994
Creator: unknown
System: The UNT Digital Library
GBRN/DOE Project: Dynamic enhanced recovery technologies. Quarterly technical report, January 1994--March 1994 (open access)

GBRN/DOE Project: Dynamic enhanced recovery technologies. Quarterly technical report, January 1994--March 1994

Global Basins Research Network will perform a field demonstration of their ``Dynamic Enhanced Recovery Technology`` to test the concept that the growth faults in EI-330 field are conduits through which producing reservoirs are charged and that enhanced production can be developed by producing directly from the fault zone. The site, operated by Penzoil, is located in 250 feet of water the productive depth intervals include 4000 to 9000 feet. Previous work, which incorporated pressure, temperature, fluid flow, heat flow, seismic, production, and well log data, indicated active fluid flow along fault zones. The field demonstration will be accomplished by drilling and production test of growth fault systems associated with the EI-330 field. The project utilizes advanced 3-D seismic analysis, geochemical studies, structural and stratigraphic reservoir characterization, reservoir simulation, and compact visualization systems. The quarterly progress reports contains accomplishments to date for the following tasks: Management start-up; database management; field and demonstration equipment; reservoir characterization, modeling; geochemistry; and data integration.
Date: April 15, 1994
Creator: Anderson, R. N.
System: The UNT Digital Library
Hanford Environmental Information System (HEIS). Volume 9, Field Quality Control subject area (open access)

Hanford Environmental Information System (HEIS). Volume 9, Field Quality Control subject area

The purpose of the HEIS Field Quality Control subject area is to manage the data acquired from field quality control samples. Field quality control samples are used to determine if sample contamination has occurred at some point in the sampling process. Four major types of data comprise the Field Quality Control subject area. Data about samples, spike samples, chemical and/or radiologic analysis of field quality control samples, and relationships between field quality control and non-quality control samples.
Date: April 15, 1994
Creator: Schreck, R. I.
System: The UNT Digital Library
High-level assessment of LANL ABC Design (open access)

High-level assessment of LANL ABC Design

An annual weapon`s grade Pu disposition goal should be stated and related to the amount of Pu that needs to be disposed of. It needs to be determined to what extent it is possible to destroy Pu without building up any new Pu, i.e., how realistic this goal is. The strong positive Doppler coefficient for a Pu core might require the addition of some fertile material to ensure a negative Doppler coefficient. This in turn will affect the net Pu disposition rate. If a fertile material is required throughout the life of the ABC to ensure a negative Doppler coefficient, the difference between the molten salt ABC and other reactors in regard to Pu disposition is not a principled difference anymore but one of degree. A rationale has then to be developed that explains why {open_quotes}x{close_quotes} kg production of fissile material are acceptable but {open_quotes}y{close_quotes} kg are not. It is important to determine how a requirement for electricity production will impact on the ABC design choices. It is conceivable that DOE will not insist on electricity generation. In this case advantage has to be taken in terms of design simplifications and relaxed operating conditions.
Date: April 15, 1994
Creator: unknown
System: The UNT Digital Library
Highly dispresed catalysts for coal liquefaction. Quarterly report No. 10, November 23, 1993--February 22, 1994 (open access)

Highly dispresed catalysts for coal liquefaction. Quarterly report No. 10, November 23, 1993--February 22, 1994

The objectives of this project are to study the effect of pretreatment methods on the two-stage liquefaction process. In particular, the effects of dispersed catalysts and carbon monoxide atmospheres on a coal liquefaction process. The project is divided into three technical tasks. Task 1 and 2 deal with the analyses and liquefaction experiments, respectively, whereas Task 3 deals with the economic impact of utilizing the pretreatment methods. This quarter the authors concentrated on Tasks 1 and 2, which are summarized below.
Date: April 15, 1994
Creator: Hirschon, A. S. & Wilson, R. B.
System: The UNT Digital Library
Lawrence Berkeley Laboratory FY 1994 site development plan (open access)

Lawrence Berkeley Laboratory FY 1994 site development plan

This plan describes the mission, workload, site population, site and regional information, program projections and requirements, master plan, five-year construction plan, and management considerations.
Date: April 15, 1994
Creator: unknown
System: The UNT Digital Library
Mixed Waste Integrated Program Quality Assurance requirements plan (open access)

Mixed Waste Integrated Program Quality Assurance requirements plan

Mixed Waste Integrated Program (MWIP) is sponsored by the US Department of Energy (DOE), Office of Technology Development, Waste Management Division. The strategic objectives of MWIP are defined in the Mixed Waste Integrated Program Strategic Plan, and expanded upon in the MWIP Program Management Plan. This MWIP Quality Assurance Requirement Plan (QARP) applies to mixed waste treatment technologies involving both hazardous and radioactive constituents. As a DOE organization, MWIP is required to develop, implement, and maintain a written Quality Assurance Program in accordance with DOE Order 4700.1 Project Management System, DOE Order 5700.6C, Quality Assurance, DOE Order 5820.2A Radioactive Waste Management, ASME NQA-1 Quality Assurance Program Requirements for Nuclear Facilities and ANSI/ASQC E4-19xx Specifications and Guidelines for Quality Systems for Environmental Data Collection and Environmental Technology Programs. The purpose of the MWIP QA program is to establish controls which address the requirements in 5700.6C, with the intent to minimize risks and potential environmental impacts; and to maximize environmental protection, health, safety, reliability, and performance in all program activities. QA program controls are established to assure that each participating organization conducts its activities in a manner consistent with risks posed by those activities.
Date: April 15, 1994
Creator: unknown
System: The UNT Digital Library
Radiological performance assessment for the E-Area Vaults Disposal Facility (open access)

Radiological performance assessment for the E-Area Vaults Disposal Facility

The E-Area Vaults (EAVs) located on a 200 acre site immediately north of the current LLW burial site at Savannah River Site will provide a new disposal and storage site for solid, low-level, non-hazardous radioactive waste. The EAV Disposal Facility will contain several large concrete vaults divided into cells. Three types of structures will house four designated waste types. The Intermediate Level Non-Tritium Vaults will receive waste radiating greater than 200 mR/h at 5 cm from the outer disposal container. The Intermediate Level Tritium Vaults will receive waste with at least 10 Ci of tritium per package. These two vaults share a similar design, are adjacent, share waste handling equipment, and will be closed as one facility. The second type of structure is the Low Activity Waste Vaults which will receive waste radiating less than 200 mR/h at 5 cm from the outer disposal container and containing less than 10 Ci of tritium per package. The third facility, the Long Lived Waste Storage Building, provides covered, long term storage for waste containing long lived isotopes. Two additional types of disposal are proposed: (1) trench disposal of suspect soil, (2) naval reactor component disposal. To evaluate the long-term performance of the …
Date: April 15, 1994
Creator: Cook, J. R. & Hunt, P. D.
System: The UNT Digital Library
Radiological performance assessment for the E-Area Vaults Disposal Facility. Appendices A through M (open access)

Radiological performance assessment for the E-Area Vaults Disposal Facility. Appendices A through M

These document contains appendices A-M for the performance assessment. They are A: details of models and assumptions, B: computer codes, C: data tabulation, D: geochemical interactions, E: hydrogeology of the Savannah River Site, F: software QA plans, G: completeness review guide, H: performance assessment peer review panel recommendations, I: suspect soil performance analysis, J: sensitivity/uncertainty analysis, K: vault degradation study, L: description of naval reactor waste disposal, M: porflow input file. (GHH)
Date: April 15, 1994
Creator: Cook, J. R.
System: The UNT Digital Library
Wetland Treatment of Oil and Gas Well Wastewaters. Quarterly Technical Report, November 25, 1993--March 24, 1994 (open access)

Wetland Treatment of Oil and Gas Well Wastewaters. Quarterly Technical Report, November 25, 1993--March 24, 1994

In the third quarterly report, adsorption of heavy metals ions such as Cu(II) and Cr(VI) onto soils drawn from the laboratory-type wetland (LW) was shown to be weak. On the other hand, it was shown that modified-clays did adsorb Cr(VI) ions strongly at pH 4.5. Further, studies on the pH dependence of the adsorption of {beta}-naphthoic acid, (NA), a well-documented contaminant in many oil and gas well waste waters (4), onto modified-clays were undertaken and it was shown that uptake of NA by modified-clays was of the high affinity type at pH 4.5 and 7.0, but weak at pH 9.0. Adsorption of heavy metal ions, Cu{sup 2+}, and CR(VI) onto algae, a proposed wetland amendment, was carried out and the results were presented and discussed in the fourth quarterly report. Studies on the dynamics of uptake of phenol and NA by laboratory-type wetlands (LWs) were initiated and preliminary results indicated that both phenol and NA were sorbed onto components of LWs. A mass balance model has been developed to quantify the fate of phenol in LWs. The model is based on the postulate that the fate of phenol in LWs can be attributed to a combination of (1) evaporation of …
Date: April 15, 1994
Creator: Kadlec, R. H. & Srinivasan, K. R.
System: The UNT Digital Library