Author: P. MorsingPublisher:
ISBN:
Category :
Languages : en
Pages : 8
Book Description
Selective Catalytic Reduction of NOx and Combustiblecomponentsin the Exhaust Gas from Small Power Plants
Author: P. MorsingSelective Catalytic Reduction of NO_x and Combustible Components in the Exhaust Gas from Small Power Plants Topsøe Method
Author: P. SchoubyeSelective Catalytic Reduction Technology for the Control of Nitrogen Oxide Emissions from Coal-Fired Boilers
Author: Gene KnightPublisher: DIANE Publishing
ISBN: 1437904726
Category : Technology & Engineering
Languages : en
Pages : 28
Book Description
The Clean Coal Technology Demo. Program (CCTDP) is an effort to demonstrate a new generation of innovative coal utilization processes in a series of facilities built across the country. These projects are carried out on a commercial scale to prove technical feasibility and provide the info. required for future applications. Projects have demonstrated technical options with the potential to meet the needs of energy markets while satisfying environ. requirements. Part of this program is the demo. of technologies designed to reduce emissions of oxides of nitrogen (NOx) from existing coal-fired utility boilers. This report summarizes the status of selective catalytic reduction (SCR) technology for the control of NOx emissions from high-sulfur, coal-fired boilers. Illus.
Selective Catalytic Reduction of NOx
Author: Oliver KröcherPublisher:
ISBN: 9783038973652
Category :
Languages : en
Pages :
Book Description
The most efficient process to reduce NOx emissions from lean exhaust gases, selective catalytic reduction (SCR) with ammonia, has undergone tremendous development over the past decades. Originally only applied in stationary power plants and industrial installations, SCR systems are now installed in millions of mobile diesel engines, ranging from off-road machineries, to heavy-duty and light-duty trucks and passenger cars, to locomotives and ships. All of these applications involve specific challenges due to tighter emission limits, new internal combustion engine technologies, or alternative fuels. Three review articles and 14 research articles in this book describe recent results and research trends of various aspects of the SCR process. Reaction engineering aspects, such as the proper dosage of ammonia or urea, respectively, are as important as further developments of the different SCR catalysts, by deepening the understanding of their functionality or by systematic improvements of their properties, such as low-temperature activity, selectivity, or poisoning-resistance. Another covered aspect is cost reduction through the use of cheaper base materials for the production is active and stable SCR catalysts. Finally, research efforts are reported to develop SCR processes with different reducing agents, which would open doors to new applications in the future. The range of topics addressed in this book will stimulate the reader's interest as well as provide a valuable source of information for researchers in academia and industry.
Energy Research Abstracts
Author: Selective Catalytic Reduction of NOx
Author: Oliver KröcherPublisher: MDPI
ISBN: 3038973645
Category : Electronic books
Languages : en
Pages : 281
Book Description
This book is a printed edition of the Special Issue "Selective Catalytic Reduction of NOx" that was published in Catalysts
Use of Selective Catalytic Reduction for Control of NOx Emissions from Power Plants in the U.S.
Author: Bruce BiewaldPublisher:
ISBN:
Category : Electric power-plants
Languages : en
Pages : 27
Book Description
Acid Precipitation
Author: System and Method for Selective Catalytic Reduction of Nitrogen Oxides in Combustion Exhaust Gases
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
A multi-stage selective catalytic reduction (SCR) unit (32) provides efficient reduction of NOx and other pollutants from about 50-550.degree. C. in a power plant (19). Hydrogen (24) and ammonia (29) are variably supplied to the SCR unit depending on temperature. An upstream portion (34) of the SCR unit catalyzes NOx+NH.sub. 3 reactions above about 200.degree. C.A downstream portion (36) catalyzes NOx+H.sub. 2 reactions below about 260.degree. C., and catalyzes oxidation of NH.sub. 3, CO, and VOCs with oxygen in the exhaust above about 200.degree. C., efficiently removing NOx and other pollutants over a range of conditions with low slippage of NH.sub. 3. An ammonia synthesis unit (28) may be connected to the SCR unit to provide NH.sub. 3 as needed, avoiding transport and storage of ammonia or urea at the site. A carbonaceous gasification plant (18) on site may supply hydrogen and nitrogen to the ammonia synthesis unit, and hydrogen to the SCR unit.
Urea-SCR Technology for deNOx After Treatment of Diesel Exhausts
Author: Isabella NovaPublisher: Springer Science & Business Media
ISBN: 1489980717
Category : Science
Languages : en
Pages : 715
Book Description
Urea-SCR Technology for deNOx After Treatment of Diesel Exhausts presents a complete overview of the selective catalytic reduction of NOx by ammonia/urea. The book starts with an illustration of the technology in the framework of the current context (legislation, market, system configurations), covers the fundamental aspects of the SCR process (catalysts, chemistry, mechanism, kinetics) and analyzes its application to useful topics such as modeling of full scale monolith catalysts, control aspects, ammonia injections systems and integration with other devices for combined removal of pollutants.