scr control Articles

  • Overview and status of post-combustion NOx control: SNCR, SCR and hybrid technologies

    Requirements for reduced NOx emissions have required that emissions reduction technologies move beyond combustion controls alone. Post combustion NOx control technologies that are being applied to coalfired utility boilers include selective non catalytic reduction (SNCR), selective catalytic reduction (SCR), and combined SNCR/SCR systems (hybrid SNCR/SCR). This ...


    By Inderscience Publishers

  • SCR Long-Term Durability Proven in U.S. Field Trials

    In the Spring 2003 issue of Global Emissions Management,we unveiled the Compact SCRT® from Johnson Matthey. In this issue,we provide an update on SCR durability trials, taken from paper 2004-01-1289 given at the SAE 2004 World Congress ...

  • NOx Control on a Budget

    National, regional and local regulations to reduce NOx emissions have prompted the development and implementation of a number of NOx control technologies – from selective catalytic reduction and low-NOx burners to overfire air and flue gas recirculation. Induced flue gas recirculation (IFGR), a design derivative of conventional forced flue gas recirculation, has demonstrated NOx reductions as ...

  • Mercury Control Demonstrations

    C1.1 | Halogens and Sulfur in Coals and their Influence on Co-benefit Mercury Capture Bernhard Vosteen | President, Vosteen Consulting Gmbh Not only the range of the coal mercury content itself, but also the range of the native halogen and sulfur contents in coal are of great influence on co-benefit mercury capture, wet and dry. The ...

  • Intelligent Pollution Control

    The world faces difficult pollution control decisions. For every dollar spent on pollution control, there is an alternative investment in health improvement. For every dollar spent on reducing one pollutant, there is an alternative to reduce another. The most prudent course to make the best investment should include: Intelligent uncertainty Intelligent classification of options ...


    By The McIlvaine Company

  • High-temperature air pollution control technology

    Based on 35 years’ experience working for the environment, French company Maguin has developed the Cercat filter for high temperature air pollution control. David Gambier describes the technology and its potential use in the glassmaking industry.Maguin has been present in the waste thermal treatment field since the 1970s, offering customers innovative and state-of-the-art concepts. The company’s ...

  • NOx in Non-Utility Industries - Part II - Control options and monitoring methodology

     This the second in a two-part series. Part I, which appeared in our June 2001 issue focuses on air emission origins of nitrogen oxides (NOx) in non-utility industries. Choice of the NOx control technology is dependent on many factors, including regulatory requirements, technical feasibility, cost and public perception. Figure 1, compiled based on publications [1-5], presents a summary of ...


  • Modest Growth for Air Pollution Control Market

    The Clean Air Act amendments of 1990 created a wave of optimism in the air pollution control (APC) business. The subsequent decade, however, resulted in backwash of disappointment for APC companies as the market for stationary source equipment declined from 1-4% per year from 1993-1998. Growth returned to the APC market, however, with 1999 and 2000 characterized as 'good' years by the Institute ...

  • Strategy for Complying with Air Pollution Control Regulations in the Chemical Industry

    Untitled Document The Clean Air Act (CAA) was originally passed by the United States Congress in 1970 and subsequently revised in 1977 for the purpose of protecting human health ...


    By Trinity Consultants

  • The U.S. Department of Energy's NOx control technology R&D programme for existing power plants

    The U.S. Department of Energy (DOE) has established a set of national priorities through its Strategic Plan that includes the goal to promote secure, competitive, and environmentally responsible energy systems that serve the needs of the public. The Innovations for Existing Plants (formerly the Advanced Research and Environmental Technologies) programme, managed by the National Energy Technology ...


    By Inderscience Publishers

  • NOx in Non-Utility Industries - Part I NOx in Non-Utility Industries - Part I - Air emission origins, best control solutions and monitoring methodology for nitrogen oxides

     Problems with reducing nitrogen oxides (NOx) are widespread in the general process industries. These industries, together with medium size utility and power generators contribute about 15 percent of global NOx emissions. The emission sources addressed include various heaters employed in chemical and petrochemical plants, nitric and sulfuric acid plants, glass furnaces, iron and steel mills, ...


  • A selective catalytic system for greenhouse gas (NOx) emission reduction at a 2–ethyl hexanol plant

    Trends of ambient NOX levels in the Jubail Industrial City, Saudi Arabia, are increasing, and the regulators have identified areas requiring substantial reductions to control the atmospheric NOX concentrations. In this study, a Selective Catalytic Reduction (SCR) system for the control of NOX ...


    By Inderscience Publishers

  • LaCygne - GSG™ Graduated Straightening Grid Performance

    KCP&L’s LaCygne Generating Station provides 1,532 MW of peak power to customers from the site south of Kansas City. LaCygne Unit 1 is an 815 MW B&W cyclone boiler with Over-Fire Air (OFA) and SCR NOx controls, and the second oldest WFGD installation in the country. LaCygne Unit 2 is a 717 MW B&W PC boiler with Low NOx Burners (LNB), OFA, and ESP particulate control. ...


    By Fuel Tech, Inc.

  • Selected Literature from Johnson Matthey`s Environmental Catalysts and Technologies Division

    SSEC Literature: High Temperature SCR Zeolite Catalyst for NOx Control / SCR Catalyst for NOx Control Stationary Lean Burn Engines / SCR Systems for NOx Control Stationary Lean Burn Engines / Gas Turbine Oxidation Catalyst for the control of CO and VOCs / Oxidation Catalysts for the Control of CO, VOC, HC / BanditoTM - Modular Catalytic Converter for the Control of NOx, CO and THC / Band-ItTM - ...

  • Dredging Up Power

    Caterpillar Marine was selected to power three 3500 m³ trailing suction hopper dredgers for the Jan De Nul Group with Cat 3500E IMO III and EPA Tier 4 certified engines. Cat said the 3500E incorporates selective catalyst reduction (SCR) after-treatment technology with closed-loop NOx sensing and application optimized performance for minimized owning and operating costs. “Embedded ...

  • JM News

    Dr. Andy Walker, Johnson Matthey’s Heavy Duty Diesel Global Technology Director, is the winner of the Society of Automotive Engineers (SAE) 2006 Lloyd L. Withrow Distinguished Speaker Award. The award recognises the excellence and consistency of Dr. Walker's presentations at SAE technical sessions. To qualify for the Lloyd L. Withrow award, candidates must have already received the SAE's Oral ...

  • New engines: Time to clear the air

    In response to new federal emission standards that went into effect Jan. 1, 2010 in the U.S. and Canada, engine manufacturers selected one of two choices to achieve a reduction in emissions of oxides of nitrogen (NOx). They either provide an in-cylinder approach through increased exhaust gas recirculation (EGR) only, or an engine aftertreatment approach using selective catalytic reduction (SCR) ...


    By Waste Advantage Magazine

  • Filter technology to meet evolving regulations

    Maguin has developed the Cercat filter for high temperature air pollution control. In this article, David Gambier and Hélène Real outline the technology, as well as installations planned for 2009. Maguin has been present in the waste thermal treatment field since the 1970s. The company’s knowledge has been built through the turnkey supply of thermal treatment units for different kinds of products ...

  • TDLS for a Cleaner Environment - Case Study

    In this case study for Axetris Laser Gas Detection (LGD) products, Urs F. Boegli – Senior Application Engineer - looks at the historical perspective on the development of environment regulation and emission control technology. The European Community has published several directives to harmonize the legislation on industrial emissions. These include the Large Combustion Plant Directive ...


    By Axetris Ag

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