Download or read book Kinetic Study of NO3 Formation and Removal Processes in Combustion Streams First Quarterly Technical Progress Report June 6 1982 August 31 1982 written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The production of nitric oxide from combustion of hydrocarbon fuels with air has been recognized to be a serious potential health hazard. In dirtier fuels such as coal and oil shale, a major source of nitric oxide occurs due to the reactions of small hydrocarbon fragments with the nitrogen in the air. These reactions take place in the rich part of the combustion flame and are termed the Prompt-NO mechanism. However, the detailed reaction sequence and rates of these reactions are not well known. The purpose of this work is to directly measure key reaction rates of the CH radical and subsequent HCN reactions which form the basis for Prompt-NO production. During this initial Quarter, production and detection methods for CH were devised and tested, and preliminary rate measurements made for the reaction of CH + N2 at 300 K.
Download or read book Fossil Energy Update written by and published by . This book was released on 1982 with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1983 with total page 976 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.
Download or read book Government Reports Annual Index written by and published by . This book was released on 1986 with total page 900 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1983 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fourth Quarterly Technical Progress Report on a Kinetic Study of NOx Formation and Removal Processes in Combustion Streams written by and published by . This book was released on 1983 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1986-03 with total page 1146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book First Quarterly Technical Progress Report on a Kinetic Study of NOx Formation and Removal Processes in Combution Streams written by and published by . This book was released on 1982 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ERDA Energy Research Abstracts written by and published by . This book was released on 1985 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Kinetic Study of NOx Formation and Removal Processes in Combustion Streams written by J. A. Silver and published by . This book was released on 1984 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Homogeneous Production and Removal of NO3 from Combustion Exhaust Flows First Quarterly Technical Summary Report written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The production and removal of Nox and other combustion products during fossil fuel combustion is a serious environmental problem for both stationary and mobile energy systems. Since stationary systems are faced with increased utilization of coal, oil shale, or synthetic fuel oils, all of which have significant levels of fuel-bound nitrogen, NOx formation may become acute. Recent studies of the production of NOx due to oxidation of fuel nitrogen indicate that a critical role is played by the interaction of NH/sub i/ (i = 1,2,3) species with NO, O2, OH, and H. In fact, these reactions play a vital role in the homogeneous removal of NOx from combustion exhaust streams upon addition of NH3 or NH3-like compounds. Over the past two years, there has been an increased understanding of the chemistry of the NH/sub i//NOx system at combustor exhaust temperatures. For an ammonia addition system to be effective in reducing NO/sub x/ emissions, it must work successfully in the presence of a variety of sulfur-bearing compounds present in the products of combusted coal and oil shale. The work in progress has three major objectives. The first objective is to determine whether the reactions of SO2 (the predominant sulfur-bearing compound present) + NH/sub i/ (i = 1,2,3) directly produce NO/sub x/ in the temperature range of 300 to 1500 K. Depending on the products and value of these rate constants, the effectiveness of NO removal by NH3 could be dramatically affected. The second objective is to screen and evaluate various sulfur-containing scavenger precursors such as SO, SO2, HS, and H2S to assess their impact on the NH/sub i//NO/sub x/ chemical system.
Download or read book Backpacker written by and published by . This book was released on 2007-09 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: Backpacker brings the outdoors straight to the reader's doorstep, inspiring and enabling them to go more places and enjoy nature more often. The authority on active adventure, Backpacker is the world's first GPS-enabled magazine, and the only magazine whose editors personally test the hiking trails, camping gear, and survival tips they publish. Backpacker's Editors' Choice Awards, an industry honor recognizing design, feature and product innovation, has become the gold standard against which all other outdoor-industry awards are measured.
Download or read book Homogeneous Production and Removal of NO3 from Combustion Exhaust Gases Seventh Quarterly Technical Summary Report 1 March 31 May 1980 written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The rate constants for the reaction OH + NH3 .-->. NH2 + H2O have been measured over the temperature range 294 - 1075 K. The data can be fit by the Arrhenius expression k(cm3 molecule−1 s−1) = 5.41 +- 0.86 x 10−12 exp( -2120 +- 143 kcal mol−1/RT). A chemical model of the NO/sub x/ chemistry has been developed which includes 54 reactions. Although not yet complete, the reaction set clearly indicates the key reaction is NH2 + NO. The determination of the product channels and their branching ratios is of utmost importance in understanding the effect of NH3 addition to combustor exhaust streams for removal of NO/sub x.
Download or read book Kinetics and Mechanisms of NO subscript X Char Reduction Quarterly Technical Progress Report May 1 1995 July 31 1995 written by and published by . This book was released on 1995 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: The emission of nitrogen oxides from combustion of coal remains a problem of considerable interest, whether the concern is with acid rain, stratospheric ozone chemistry, or {open_quotes}greenhouse{close_quotes} gases. Whereas earlier the concern was focused mainly on NO (as a primary combustion product) and to a lesser extent NO2 (since it is mainly a secondary product of combustion), in recent years the emissions of N2O have also captured considerable attention, particularly in the context of fluidized bed combustion, in which the problem appears to be most acute. The research community has only recently begun to take solid hold on the N2O problem. This is in part because earlier estimates of the importance of N2O in combustion processes were clouded by artifacts in sampling which have now been resolved. This project is concerned with the mechanism of reduction of both NO and N2O by carbons. It was recognized some years ago that NO formed during fluidized bed coal combustion can be heterogeneously reduced in-situ by the carbonaceous solid intermediates of combustion. This has been recently supplemented by the knowledge that heterogeneous reaction with carbon can also play an important role in reducing emissions of N2O, but that the NO-carbon reactions might also contribute to formation of N2O. The precise role of carbon in N2O reduction and formation has yet to be established, since in one case the authors of a recent study were compelled to comment that {open_quotes}the basic knowledge of N2O formation and reduction still has to be improved{close_quotes}. The same can be said of the NO-carbon system. In this program, carbons studied include graphite, resin char, coconut char, and a Wyodak coal char.
Download or read book Gozos al glorioso S Mauro M rtir Romano segun se cantan en la capilla del Real Colegio de Corpus Christi de Valencia en donde se venera el cuerpo de dicho Santo patr n del mismo Real Colegio written by and published by . This book was released on 1830 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Kinetics and Mechanisms of NO subscript X Char Reduction Quarterly Technical Progress Report 1 May 1996 31 July 1996 written by and published by . This book was released on 1997 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The emission of nitrogen oxides from combustion of coal remains a problem of considerable interest, whether the concern is with acid rain, stratospheric ozone chemistry, or {open_quotes}greenhouse{close_quotes} gases. Whereas earlier the concern was focused mainly on NO (as a primary combustion product) and to a lesser extent NO2, in recent years the emissions of N2O have also captured considerable attention, particularly in the context of fluidized bed combustion, in which the problem appears to be most acute. The research community has only recently begun to take solid hold on the N2O problem. This is in part because earlier estimates of the importance of N2O in combustion processes were clouded by artifacts in sampling which have now been resolved. This project is concerned with the mechanism of reduction of both NO and N2O by carbons.
Download or read book Backpacker written by and published by . This book was released on 2007-09 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: Backpacker brings the outdoors straight to the reader's doorstep, inspiring and enabling them to go more places and enjoy nature more often. The authority on active adventure, Backpacker is the world's first GPS-enabled magazine, and the only magazine whose editors personally test the hiking trails, camping gear, and survival tips they publish. Backpacker's Editors' Choice Awards, an industry honor recognizing design, feature and product innovation, has become the gold standard against which all other outdoor-industry awards are measured.
