two-way catalyst Articles

  • Two Detector Solution to Analyzing Sulfur

    Sulfur compounds are reactive, corrosive to pipes, and destructive to catalysts in petroleum refineries. Sulfur emission are strictly regulated globally. When released into the atmosphere sulfur dioxide converts to sulfuric acid resulting in adverse effects on human health and the environment. Sulfur detection is found useful in many other industries; therefore, detection of sulfur compounds in ...


    By Restek Corporation

  • 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.

  • Caltech working to solve the world`s energy problems with the help of inVia

    Fossil fuels are the world's main fuel source for transportation, heating and generating electricity. As a by-product, high levels of CO2 are released into the atmosphere. With the drive for sustainable energy production, a method that generates easily-stored fuel from sunlight—and absorbs CO2—is a very attractive proposition. The California Institute of Technology ...


    By Renishaw plc

  • Water is a catalyst for peace

    This papers presents a reflection about the work of the World Commission on Dams during the past two years. The reasons for and against large river dams are discussed, the sources of conflict explored, and arguments advanced for the importance of using water resources governance as a catalyst for cooperation and peace.Keywords: conflict management, dams, peace, rivers, water ...


    By Inderscience Publishers

  • 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.

  • 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

  • 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.

  • 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

  • Diesel Oxidation Catalyst for Marine Vessel

    Description Eight MTU 16V4000 (1800 kW) diesel engines powering two electric motors for the yacht Octopus, owned by Microsoft billionaire Paul Allen. At the time of launch in 2003 it was the largest private luxury yacht in the world, costing over US$200 million and with a permanent crew of 60. Challenge Design specifications called for the use of advanced exhaust after-treatment for ...


    By DCL International Inc.

  • The heterogeneous photo-Fenton reaction using goethite as catalyst

    In the present work the degradation of 2-chlorophenol (2-CP) used as model compound, applying the Heterogeneous photo-Fenton reaction, was studied. Small particles of goethite or iron oxyhydroxide were used as a source of iron. The influence of catalyst loading, radiation intensity and the molar ratio between hydrogen peroxide and contaminant were examined. Improvement by illumination is highly ...


    By IWA Publishing

  • DCL Catalyst Meets Stringent California Regulations

    Enticed by a grant offered by the state of California’s Energy Commission, Tideland Oil Production Co. of Southern California ...


    By DCL International Inc.

  • Ultrasonic sludge disintegration in the presence of iron (II) as catalyst

    Increasing environmental awareness worldwide and subsequent regulations have led to the application of improved and novel technologies in excess sludge treatment. Sludge is the by–product of wastewater treatment plants rich in organic carbons, pathogens and metals. To enhance the ultrasonic sludge disintegration, a new method by introducing (Fe (II)) as a catalyst in the process has been ...


    By Inderscience Publishers

  • 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.

  • 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. ...

  • Optimizing Catalyst Performance Aids in Lowering Operational & Management Costs

    Catalyst costs can be more than $2 million per layer, and customers are seeking ways to better manage their budget while maintaining catalyst performance. Fuel Tech's TIFI® Targeted In-Furnace Injection™ programs aid in the optimization of catalyst performance by managing slag, fouling, and ABS.  Minimizing the negative impacts of poor combustion while optimizing gas flow paths. ...


    By Fuel Tech, Inc.

  • Synthesis of β-Cyano ketones promoted by a Heterogeneous Fluoride catalyst

    Keywords: β-cyano ketones;heterogeneous catalysis;solvent-free conditions;sustainable chemistry;A simple protocol for the conjugate addition of cyanide group to α,β-unsaturated ketones has been developed. By exploiting solvent-free conditions, the use of Amberlist-F (Amb-F) as heterogeneous fluoride catalyst, and trimethylsilyl cyanide (TMSCN) as reactant, β-cyano ...


    By SusChem

  • Kinetics of xylose in hydrolysate using dilute sulphuric acid as catalyst

    In the technology of manufacturing fuel alcohol from biomass as feedstock, hydrolysis using dilute acid as catalyst is one way to produce fermentable saccharide. In this process, the yield of xylose is always low because of the degrading during the acid environment. In this paper, the degrading kinetics of xylose in the hydrolysate was investigated under the conventional process conditions of the ...


    By Inderscience Publishers

  • Recovery of Ruthenium and Other PGMs from Spent Petrochemical Catalysts

    The recovery of platinum group metals from spent petrochemical catalysts has economic benefits by the protection of the supply chain of these valuable and rare metals, thereby helping to create a sustainable value chain in the petrochemical industry for catalysts. Introduction The platinum group metals (PGMs) are used extensively in catalysts for the petrochemical industry owing to ...

  • Recovery of Precious Metal Catalysts - A New Process Using Supercritical Water Oxidation

    Up to now, the recovery of precious metals used as catalysts in chemical processes has involved the use of incineration. Now, however, a British-Swedish joint venture has developed a process which uses supercritical water oxidation instead, which provides many economic and environmental advantages. Precious metals are used extensively in catalysts in a wide range of industrial chemical processes. ...

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