industrial exhaust gas treatment catalyst Articles

  • Allweiler pumps in exhaust gas treatment systems in ships

    As environmental regulations become more stringent, waste gas treatment systems are growing in importance. H+H Umwelt- und Industrietechnik GmbH of central Germany has been using Allweiler progressing cavity pumps as a core component of these systems since 2003. The company has been manufacturing catalytic waste gas treatment systems since 1998. Originally they focused on applications in block ...


    By ALLWEILER GmbH

  • Exhaust Gas Treatment in Paint Shops: Volkswagen chooses catalytic afterburning

    Paint shops are an energy-intensive step in the automotive manufacturing process. One of the world´s largest paint-shop complexes is operated by the Volkswagen Group at its main plant in Wolfsburg. In the past VW used hot air from thermal afterburners to heat its paint dryers. Following a detailed review, the company was one of the first to decide to ...


    By Clariant International Ltd.

  • 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. ...

  • Common Treatment Technologies for Nonhalogenated VOCs

    Soil vapor extraction (SVE), thermal desorption, and incineration are the presumptive remedies for Superfund sites with nonhalogenated VOC-contaminated soil. Because a presumptive remedy is a technology that EPA believes, based upon its past experience, generally will be the most appropriate remedy for a specified type of site, the presumptive remedy approach will accelerate site-specific ...

  • 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 ...


  • 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, ...


  • Chemical Aspects of NOX Scrubbing

    With the passage of the 1990 Clean Air Act Amendments, many chemical and metal industries and utility producers will now be required to further limit the amount of NOX (Nitrogen Oxides) produced. NOX is a precursor to ozone in the atmosphere, and is believed to be a major contributor to acidic deposition (acid rain). Formation of ozone: NO2 + Hv ...


  • Case study - Automotive parts coater exceeds local air quality requirements

    Today many companies are faced with unique air pollution control problems arising from their coating operations. Not only are vented emissions required to be controlled, but now a more pressing issue is how to treat fugitive emissions. Fugitive emissions are the VOC and HAP releases that occur at the coating process or in a mixing area. Fugitive emissions are sometimes difficult to capture when ...

  • The Chemical Aspect of NOx Scrubbing

    With the passage of the 1990 Clean Air Act Amendments, many chemical and metal industries and utility producers will now be required to further limit the amount of NOx (Nitrogen Oxides) produced. NOx is a precursor to ozone in the atmosphere, and is believed to be a major contributor to acidic deposition (acid rain). Formation of ozone: NOx is produced in a variety of ...


    By CR Clean Air Group, LLC

  • Case study - Mobile remediation system

    OVERVIEW A large consulting and contracting firm owns and operates several ex-situ Thermal Desorption Units (TDUs). Each single-load Thermal Desorption Unit has the capacity of desorbing 15 tons of soil per hour at a temperature of 400°F - 900°F. These Thermal Desorber Units have been designed to operate on both chlorinated and non-chlorinated RCRA, CERCLA, and private industry ...

  • WESPS continue to deliver

    Compliance with the increasingly stringent air pollution regulations of recent years is not the only reason forwardthinking industry leaders are adopting more sophisticated gas cleaning and air pollution control strategies. The desire to achieve higher performance efficiencies, control costs in a competitive marketplace, and stay ahead of the regulatory compliance curve is another driver of ...


    By Beltran Technologies, Inc.

  • Case study - Printed circuit board emissions

    Overview One of the world's largest printed circuit board (PCB) manufacturers was required to install air pollution abatement equipment to control the VOCs emitted during their soldering and coating process. Three main considerations were important to the customer: The need for a system with a competitive capital cost and the lowest possible operating cost ...

  • What`s New? Biogas Power

    Technologies that connect the biogas line to the power line include cooling and clean up components, microturbines and reciprocating gas engines and control systems. TOP BILLING on the biogas to electricity stage typically goes to the microturbines and reciprocating gas engines. But in the theater of renewable energy from organics recycling, the show can’t go on without the supporting cast of gas ...


    By BioCycle Magazine

  • Cleaning Up Gasification Syngas

    Documento sin título ...


    By Merichem Company

  • Structure of Thin-Walled Multi-Channeled Parts Brazed Using Amorphous Foils

    ABSTRACT Vastly different microstructures are formed in 304LN austenitic and Fecralloy® ferritic stainless steel joints brazed with Ni-15Cr-1.4B-7.25Si (MBF-51) and Ni-19Cr-1.5B 7.3Si ...


    By DCL International Inc.

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