emissions catalysts Articles

  • Advanced Threeway Catalysts

    One area of catalyst system design which has received relatively little attention is the method of application of precious metal, specifically with regard to its positioning in the catalyst. Recent advances in catalyst coating technology have enabled both washcoat and precious metals to be distributed inhomogeneously (zoned) along the length of a catalyst monolith. With the option of zone coating ...

  • Diesel Oxidation Catalyst for Locomotive

    Description A tourist touring train in Skagway, Alaska, powered by a 6 cylinder, 900 hp, Alco 251B diesel locomotive. The train carries tourists through a scenic mountain area. Challenge Diesel odor and soot from the diesel locomotive was a nuisance to passengers on the train. DCL was approached for an emission control solution. Solution DCL custom designed an ...


    By DCL International Inc.

  • Oxidation Catalysts for BTC Pipeline

    Description Eighteen (18) compressors, powered by 7600 hp Wartsila engines. The compressors move oil from the Caspian Sea to the Mediterranean Sea in the Turkish portion of the Baku-Tbilissi-Ceyhan (BTC) pipeline. Challenge Engine-out emissions for this major pipeline project were to meet the World Bank standards. The design target called for an oxidation catalyst to reduce engine-out ...


    By DCL International Inc.

  • Putting a Lid on Catalyst Issues

    While it is a given that emissions control technology must first and foremost remove harmful constituents from the engine exhaust gas stream, it is equally true that they must also be able to operate in the real world, where durability, reliability and serviceability are critical. It was with those facts in mind that DCL International Inc., the Concord, Ontario, Canada, supplier of advanced ...


    By DCL International Inc.

  • Three-Way Catalysts for Talisman Energy

    Description Natural gas compressor station in northern Alberta, Canada, powered by Waukesha 7042 GSI engines. Challenge The challenge was to meet emission targets for NOx, CO and non-methane hydrocarbons, for a variety of compressor engines with different exhaust configurations. Solution DCL supplied the catalyst housings in two basic configurations for this project. ...


    By DCL International Inc.

  • Regeneration of Palladium Catalyst for Methane Abatement

    Abstract: The exhaust gas of lean burn gas engines contains significant amounts of unburnt methane gas. ...


    By DCL International Inc.

  • Oxidation Catalysts for Co-Generation Plant

    Description Manuli Film, Naples, Italy, with three (3) Rolls Royce KVGS-18G2, lean burn, natural gas engines, each 3030 kW electrical. Thermal power is utilized both from exhaust gas and cooling water for plastic film production. Challenge Required to meet emission standard of 400 mg/Nm3 @ 5% O2 for carbon monoxide and 150 mg/Nm3 @ 5% O2 non-methane hydrocarbons. Solution ...


    By DCL International Inc.

  • Diesel Oxidation Catalyst for Locomotive - Skagway-Alaska

    ABSTRACT A DCL catalytic converter was tested on a locomotive engine at ...


    By DCL International Inc.

  • Case study - Catalytic oxidizer catalyst replacement

    Overview A New Jersey pharmaceutical company purchased a thermal incinerator to treat the heptane and hexane exhaust from their capsule wash system. The thermal incinerator"s "tubular" design was modified with a catalyst bed in order to reduce the system"s operational costs. Unfortunately, when operating in the catalytic mode, the oxidizer failed to provide the required ...

  • Nitrogen Oxides Reactions in Diesel Oxidation Catalyst

    ABSTRACT Two catalyst formulations were tested OII a diesel engine. A Fourier Transform Infrared (FTIR) analyzer was used to measure concentrations of nitric oxide ...


    By DCL International Inc.

  • Lead consultant on REACH for Johnson Mattheys catalyst division

    We are lead consultant on REACH for Johnson Matthey’s catalyst division and the European Catalyst Manufacturers Association (ECMA). We have worked to demonstrate absence of risk for the manufacture and use of catalysts containing many different metals and metal compounds. Primary tasks for these projects were: Compilation of emissions data and information on risk management measures from ...


    By WCA Environment Ltd.

  • ENVIRONMENT CANADA AFC FUEL CATALYSTS URBAN BUS EVALUATION

    In 1996 Chassis Dynamometer testing was conducted and concluded on three Detroit Diesel 6v92 diesel engine powered urban buses by Environment Canada, Mobile Sources Emissions Division in Ottawa Ontario, Canada. This is the ...


    By AXI International

  • Environment Canada AFC Fuel Catalyst Urban Bus Evaluation

    In 1996 Chassis Dynamometer testing was conducted and concluded on three Detroit Diesel 6v92 diesel engine powered urban buses by Environment Canada, Mobile Sources Emissions Division in Ottawa Ontario, Canada. A series of New York City Composites (NYCC) and Central Business District (CBD) cycles were conducted on each bus at zero hours, 400 hours and 1000 hours of normal in service operation in ...


    By AXI International

  • The Effect of Phosphorus and Boron Lubricant Oil Additives on Catalyst Durability

    With ever-tightening legislation driving down emissions limits, minimisation of catalyst deactivation is very important. Attention has now focused on chemical poisoning of three-way catalysts (TWC) by elements commonly found in engine oil. ...

  • Static and dynamic instantaneous emission modelling

    Emission models can be categorised into three categories: average speed models; traffic situation models, used at macro-scale or meso-scale level (national, regional, city level); and instantaneous (modal) models, useful at micro-scale level (street, vehicle level). To improve the existing instantaneous emission models, some preconditions must be fulfilled: the emission signals should be measured ...


    By Inderscience Publishers

  • Reaching Euro VI emissions limits

    The requirements of low and lowest detectable exhaust analysis has prompted Eco Physics to launch a broad range of analyzers for NO/NOx detection. Emissions tuning is one of the targets of the EURO VI regulations as well as US EPA 2010, which are: Reduction of Particulate Matter (PM) and reduction of Nitrogen Oxides (NOx). In the past 15 years – since the first European regulation for exhaust ...


    By Eco Physics Inc.

  • Air Emissions/Off-Gas Treatment

    A number of technologies have been widely applied for removal of VOCs from off-gas streams. However, the application of these technologies to off-gases from site remediation may be quite limited. Biofiltration has been widely applied for VOC destruction in Europe and Japan, but it has only recently been used in the United States. Catalytic and thermal oxidation are widely used for the destruction ...

  • The benzene problem: impact of three-way catalyst technology: potential for further improvement

    Chemical ionisation mass spectrometry (CI-MS) was applied to study the benzene emission characteristics of a TWC-vehicle at a time resolution of one Hertz. Three important operating conditions with increased emissions were identified: at vehicle start; at extended stop-and-go situations; and whenever a catalyst-induced benzene formation occurs. The cold start influence was detectable for about ...


    By Inderscience Publishers

  • Case study - Rubber curing emissions

    Overview A rubber curing company was looking for a new, affordable abatement solution to treat their blue haze and low-level Volatile Organic Compounds (VOCs) in order to meet regulatory requirements. The large Electrostatic Precipitator (ESP) in use was extremely expensive to operate and maintain. The company began their search for a system that offered effective opacity control and ...

  • Reduced Emissions for Landfill Gas Installations

    The use of landfill gas as a source of renewable energy is increasing. For environmental and safety reasons, the owners of the waste storage sites have to strictly monitor and control the construction, operations, and emissions generated. Sulzer offers solutions to control these emissions within the limits given by the government. Landfill gas is similar to natural gas, but it is created by ...


    By Sulzer Ltd.

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you