nox emissions Articles

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Advanced SNCR - NOx Reduction on Large Utility Boilers

by Fuel Tech, Inc.  (Nov. 3, 2015)

Fuel Tech has recently completed full-scale demonstrations of Advanced Selective NonCatalytic Reduction systems on a number of large utility boilers (>600MW) firing a variety of fuel types. The systems use the latest flexible injection technology and are controlled with a balanced algorithm utilizing unit load, a full grid of continuous furnace ...

NOx and SOx Emissions Trading in Ontario

by Environmental Markets Association  (Jan. 1, 2001)

Erik Haites outlines an unusual emissions trading programme due to begin next year. The government of Ontario recently announced its intention to establish an emissions trading programme for NOx and SOx emissions (oxides of nitrogen and sulphur) from all coal- or oil-fired electric generating plants in the province with a capacity greater than 25 ...

Intelligent Pollution Control

by The McIlvaine Company  (Nov. 11, 2015)

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 ...

NOx Control on a Budget

by Entropy Technology & Environmental Consultants, Inc. (ETEC)  (Jul. 1, 2003)

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 ...

Research NOx Analyzers

by ECO PHYSICS, INC.  (Oct. 14, 2010)

ECO PHYSICS provides environmental experts with exceptionally sensitive and precise NOx measurement instruments. Please take a look at our newest press release on our research NOx analyzers below. Bound by the same laws of nature, ecology and physics are close associates in an on-going battle to preserve air quality around the globe. One of our ...

Case No : 601: Reducing NOx emissions from Nirtic Acid Manufacturing Plants with NOx Abatement or NSCR

by Johnson Matthey Emission Control Technologies  (Jan. 1, 2006)

NOx Abatement is a Non-Selective Catalytic Reduction (NSCR) technology that has a long and proven track record for controlling NOx emissions from nitric acid manufacturing plants. It can be used to alter the NO to NO2 balance (decolourization) or to eliminate NOx through catalytic reaction with a fuel as a reductant. ...

A novel approach for modelling of NOx emission reduction in a tangentially fired coal boiler

by Inderscience Publishers  (Jun. 24, 2013)

In this research paper, predictive modelling of NOx emission of a 210 MW capacity pulverised coal–fired boiler and combustion parameter optimisation to reduce NOx emission in flue gas is proposed. The effects of oxygen concentration in flue gas, coal properties, coal flow, boiler load, air distribution scheme, flue gas outlet temperature and ...

Exergy analysis of combustion characteristics and NOx emissions of a dual–fuel engine

by Inderscience Publishers  (Jun. 26, 2012)

The combustion characteristics and NOx emissions of compression ignition engines working on a dual fuel mode are investigated numerically and their exergetic efficiencies are determined. The model has been validated with available experimental results. The simulation results show that dual fuel engine combustion and trend of NOx ...

NOx Emissions trading scheme repealed in the Netherlands — Global Impacts?

by Enhesa - Global EHS & Product Compliance Assurance  (Feb. 5, 2013)

The once-trailblazing Dutch Nitrogen Oxides Emission Trading Scheme (NOx ETS) is to be repealed: what are the effects? In recent years, Emissions Trading Schemes have gained momentum around the world.  Hundreds upon thousands of companies have had to adapt to be able to handle the effects of more stringent regulation. The Netherlands ...

Variability of NOx Emissions from Precalciner Cement Kiln Systems

by Trinity Consultants  (Jul. 26, 2004)

In 2003, there are forty-two precalciner kilns out of about 190 total portland cement kiln systems operating in the United States. As a class, precalciner kiln systems have the lowest annual mass emissions of the oxides of nitrogen (NOx) per ton of clinker when compared to wet, long-dry and preheater kiln systems, however, like all cement kilns, ...

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