off-gas destruction Articles

  • 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 ...

  • Taxpayer dollars subsidizing destruction

    One way to correct market failures is tax shifting—raising taxes on activities that harm the environment so that their prices begin to reflect their true cost and offsetting this with a reduction in income taxes. A complimentary way to achieve this goal is subsidy shifting. Each year the world's taxpayers provide at least $700 billion in subsidies for environmentally destructive activities, such ...


    By Earth Policy Institute

  • 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

  • Ultrasonic Testing For Non Destructive Testing

    Ultrasonic Testing or UT as its known has programs in a wide range of sectors, from aerospace, automobile, to substance, oil, large storage space, and power creation and overseas. UT is aspect of a selection of techniques known as NDT (Non Destructive Testing) methods. Their objective in industry is to allow the examination of parts and equipment ...


    By Non Destructive Testing Lab

  • BLOG: Is development stuck in a destructive rut?

    Or can we dream of a new world where ecology, economy and society are re-connected? As Wetlands International, we know that it is vital to improve the condition of wetlands in order to meet future food, water and climate needs. We have also seen how wetland loss is wreaking havoc on lives and livelihoods. It is literally a tragedy in which the poorest most vulnerable people suffer the ...


    By Wetlands International

  • Case study - Destruction of inert process emissions

    Many chemical companies use batch reactors to make their products.  These reactors typically have vents which are opened and closed during emptying, filling, mixing, heating or cooling and other steps of the production process.  The gases coming from these vents must be controlled under most government regulations.  Generally speaking, the emissions produced are inert (little or no ...

  • A warming world means more destructive storms

    Elevated global temperatures bring a number of threats, including rising seas and more crop-withering heat waves. Higher surface water temperatures in the tropical oceans also provide more energy to drive tropical storm systems, leading to more-destructive hurricanes and typhoons. The combination of rising seas, more powerful storms, and stronger storm surges can be devastating. Just how ...


    By Earth Policy Institute

  • Flameless Thermal Oxidation For Chlorinated Waste Vent Gas Destruction

    Faced with a need to reduce nitrogen oxide (NOx) emission levels, a major gulf-coast chemical plant proactively evaluated several strategies and technologies that could be implemented to maintain compliance, selecting Selas Fluid's Thermatrix flameless thermal oxidation technology. ...

  • Off-Gas Treatment Technologies for Soil Vapor Extraction Systems: State of the Practice

    Untitled Document EXECUTIVE SUMMARY This document provides state-of-the-practice information on off-gas treatment technologies for soil vapor extraction ...

  • Detection and measurement of toxic gases from destructive testing of batteries

    Problem Statement New formulations of organic-compound-based batteries for vehicle use must be tested for release of potentially harmful and toxic gases if crushed in accidents. Potential gases include hydrocarbons, fluorocarbons, and hydrogen fluoride, released within seconds of an incident. Actual time-resolved and quantitative data are required from destructive testing to ascertain ...


    By CIC Photonics, Inc.

  • Automobile Shredder Residue (ASR) destruction in a plasma gasification reactor

    Test results on Automobile Shredder Residue (ASR), or car fluff, demonstrated destruction efficiency and safe conversion to synthesis gas and a glass residue, in a plasma gasification system. The synthesis gas consists primarily of hydrogen and carbon monoxide in the range between 20 and 22 vol-% respectively, or 45 and 55 vol-% dry basis, when corrected for nitrogen. In dry reforming operation, ...


    By Inderscience Publishers

  • Combating Corrosion - Committee G01 Standards Fight Nature’s Destructive Tendencies

    The evening news may leave many of us feeling war-weary, but one ASTM International technical committee has been successful in conflict of a different sort. It’s a commonplace but epic struggle between the natural and civilized worlds — the fight against metal corrosion. For the past half-century, the weapon of choice of ASTM Committee ...


    By ASTM International

  • Mechanical dissipation versus thermo-mechanical exergy destruction for plane shockwaves in an inviscid perfect gas

    In this paper, the physical exergy destruction caused by a shockwave, as an overall measure of the thermo-mechanical dissipation, is compared to the evaluation of mechanical dissipation alone. Travelling and stationary compression shockwaves are considered assuming an inviscid perfect gas with constant specific heats. Although quantities such as the change in exergy are not frame-indifferent, it ...


    By Inderscience Publishers

  • Minimisation of exergy destruction in an ethane recovery turboexpander process using Aspen Plus process simulator

    Energy and exergy analyses as well as optimisation towards minimum exergy destruction are accomplished by integrating Aspen Plus process simulator and the optimisation-related features of MATLAB for a turboexpander plant where the recovery of ethane as a natural-gas-liquid product is achieved. Exergetic performance of an ethane recovery turboexpander process under multi-feed scenario (different ...


    By Inderscience Publishers

  • Treatment to Remove High-Strength Contaminants in Wastewater Generated in the Destruction of VX Nerve Agent: Development of Technology and Demonstration of Environmental Quality

    Shortly after the events of Sept. 11, 2001, the U.S. government accelerated efforts on eliminating potential terrorist threats across the U.S. – including those posed by storage of chemical warfare agents and weapons. As part of that effort, the U.S. Army is destroying its VX–nerve agent stockpile in Newport, Indiana. The Army has determined that elimination of this stockpile can be achieved best ...

  • Moving Floor Systems Take a Load Off

    Scott Krause knows the time-consuming and labor-intensive hassle of having to manually unload a truck filled with paper documents destined for destruction and shredding. That situation has occurred occasionally at CDI Vaults in Eugene, Ore., when a driver has forgotten to reverse the non-continuous conveyor belt in one of the company’s three trucks. “Where we run into problems is when the driver ...

  • Climate Change Driving Weather off the Charts

    Meteorologists are calling the typhoon that slammed into the Philippines with 195-mile-an-hour winds on November 8, 2013, the most powerful tropical storm to make landfall on record. Super Typhoon Haiyan had gusts reaching 235 miles per hour and a storm surge swelling as high as 20 feet, so the destruction it left behind matched that of a tornado combined with a tsunami. Three days later, at the ...


    By Earth Policy Institute

  • Case Note: Bats or Buses - A Battle for a Beeching Cast-off

    Keywords: Habitats Directive, Conservation Regulations, bats,  Natural England, deliberate disturbance of species. Habitats Directive, Article 12(l)(b). FACTS OF THE CASE Hampshire County Council granted planning permission to its agent. Transport for South Hampshire, for a busway along the route of a disused railway line. In the years since ...


  • Exergetic analysis of gas turbine plants

    An exergetic analysis was performed for a 116-MW gas-turbine power plant. Mass and energy conservation laws were applied to each component of the system. Quantitative exergy balance for each component and for the whole system was considered. In this study, the exergy of a material stream is decomposed into thermal, mechanical and chemical exergy and an entropy-production flow. The effect of a ...


    By Inderscience Publishers

  • Hot Gas Decontamination

    Introduction: The process involves raising the temperature of the contaminated equipment or material to 260 °C (500 °F) for a specified period of time. The gas effluent from the material is treated in an afterburner system to destroy all volatilized contaminants. The method eliminates a waste that currently is stockpiled and requires disposal as a hazardous material. This method will permit ...

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