Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Energy and Environmental Research Emphasizing Low-rank Coal: Task 3.4 - Hot-gas Cleaning. Topical Report (includes Semiannual Report for January-June 1995).
Author: Energy and Environmental Research Emphasizing Low-rank Coal. Semi-annual Report, January--June 1994
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 342
Book Description
Summaries of progress on the following tasks are presented: Mixed waste treatment; Hot water extraction of nonpolar organic pollutant from soils; Aqueous phase thermal oxidation wastewater treatment; Review of results from comprehensive characterization of air toxic emissions from coal-fired power plants; Air toxic fine particulate control; Effectiveness of sorbents for trace elements; Catalyst for utilization of methane in selective catalytic reduction of NOx; Fuel utilization properties; Hot gas cleaning; PFBC; catalytic tar cracking; sulfur forms in coal; resid and bitumen desulfurization; biodesulfurization; diesel fuel desulfurization; stability issues; Sorbent carbon development; Evaluation of carbon products; Stable and supercritical chars; Briquette binders; Carbon molecular sieves; Coal char fuel evaporation canister sorbent; Development of a coal by-product classification protocol for utilization; Use of coal ash in recycled plastics and composite materials; Corrosion of advanced structural materials; Joining of advanced structural materials; Resource data evaluation; and the Usti and Labem (Czech Republic) coal-upgrading program.
Government Reports Announcements & Index
Author: Energy and Environmental Research Emphasizing Low-rank Coal -- Task 3.10, Gas Separation and Hot-gas Cleanup
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 19
Book Description
Catalytic gasification of coal to produce H2-, CO-, and CH4-rich mixtures of gases for consumption in molten carbonate fuel cells is currently under development; however, to optimize the fuel cell performance and extend its operating life, it is desired to separate as much of the inert components (i.e., CO2 and N2) and impurities (i.e., H2S and NH3) as possible from the fuel gas before it enters the fuel cell. In addition, the economics of the integrated gasification combined cycle (IGCC) can be improved by separating as much of the hydrogen as possible from the fuel, since hydrogen is a high-value product. Researchers at the Energy and Environmental Research Center (EERC) and Bend Research, Inc., investigated pressure-driven membranes as a method for accomplishing this gas separation and hot-gas cleanup. These membranes are operated at temperatures as high as 800 C and at pressures up to 300 psig. They have very small pore sizes that separate the undesirable gases by operating in the Knudsen diffusion region of mass transport or in the molecular sieving region of mass transport phenomena. In addition, H2 separation through a palladium metal membrane proceeds via a solution-diffusion mechanism for atomic hydrogen. This allows the membranes to exhibit extremely high selectivity for hydrogen separation. Specific questions to be answered in this project include: what are the effects of membrane properties (i.e., surface area, pore size, and coating thickness) on permeability and selectivity of the desired gases; what are the effects of operating conditions (i.e., temperature, pressure, and flow rate) on permeability and selectivity; what are the effects of impurities (i.e., small particulate, H2S, HCl, NH3, etc.) on membrane performance?
EPA Program Conference Report
Author: William N. McCarthyPublisher:
ISBN:
Category : Coal preparation
Languages : en
Pages : 148
Book Description
Circular in Reference to Collecting North American Shells
Author: Publisher:
ISBN:
Category : Mollusks / Collection and preservation
Languages : en
Pages : 4
Book Description
Low Rank Coal Research Annual Report, July 1, 1989-June 30, 1990 Including Quarterly Report, April-June 1990
Author: Task 2.3 -- Review and Assessment of Results from the Comprehensive Characterization of Toxic Emissions from Coal-fired Power Plants. Semi-annual Report, January 1--June 30, 1995
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 6
Book Description
To help meet the requirements of the 1990 Clean Air Act Amendments, the US Department of Energy (DOE) sponsored a project entitled ''Comprehensive Characterization of Toxic Emissions from Coal-Fired Power Plants.'' The Energy and Environmental Research Center was contracted to review reports discussing air toxic emissions from eight power plants as Phase 1 of the project. Additional field tests were planned as Phase 2 and are under way. The objective of the project is to provide an independent review of reports produced from the air toxic emissions study, evaluate the scientific validity of the conclusions, identify significant correlations between emissions and fuel or process parameters, compare the data with available results from Electric Power Research Institute (EPRI) studies, make recommendations for future studies, and complete a combined report that summarizes Phase 1, Phase 2, and EPRI findings.
Oratiuns per la duman e la saca, möd da tadlar la S. messa, da cufessar e da chiamüngiar. Cun ün cuort cumpilgiamaint dellas regulas & indulgenzas della terzavla Religiun da S. Francaisg
Author: Energy and Environmental Research Emphasizing Low-rank Coal -- Task 2.4, Air Toxic Fine Particulate Control
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 39
Book Description
Emission from coal-fired boilers is an issue because of the current concern over atmospheric air toxics, which contain high concentrations of trace elements. The best method of minimizing the emission of these air toxic trace elements to the atmosphere is to install high-efficiency fine-particle control devices. After collection, the dust must be removed from the filter bags or electrostatic precipitator (ESP) plates and transferred to the hopper without significant redispersion. Since it is more difficult to collect fine particles, the extent to which the dust is redispersed into its original particle-size distribution will have a major impact on the overall fine-particle collection efficiency of the filter or ESP and, subsequently, the collection efficiency of air toxic metals. The goal of Task 2.4 was to evaluate redispersion of dust in particulate control devices so that the appropriate methods to minimize redispersion can be implemented. The primary objective was to determine the extent that fly ash is redispersed as individual particles upon cleaning of the filters or ESP plates. The current research was to determine if the level of redispersion of fly ash correlates with measurable cohesive dust properties. This will contribute to the long-term project goal of developing models to the point where they can be used to help design particulate control devices for the lowest level of fine-particle emissions at a reasonable cost.