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explosive gas Applications

  • Gas detection analyzers for semiconductor industry

    Semiconductor manufacturing facilities employ a number of hazardous gases in their production processes. Whenever these gases are stored, distributed or used in manufacturing processes, there exists the potential for a hazardous condition. The primary hazards associated with these gases include fire, explosion, and contamination resulting in product loss or unscheduled preventative maintenance. These gases must be continuously monitored to ensure the health and safety of employees, to protect property, as well as to maintain regulatory compliance. Continuous gas monitoring in semiconductor facilities is a requirement of local and state regulations.

    By Control Instruments Corporation based in Fairfield, NEW JERSEY (USA).

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    Several waste gas streams: Highly contaminated oxygen-free waste gas,|and medium waste gas stream

    Explosive oxygen-free waste gases are disposed of and contribute to the oxidation process of the contaminants.

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    Gas monitoring and dust monitoring for the powerplants industry

    LaserGas measurements

    • Boiler combustion control, O2 and CO
    • DeNOx system, NH3 and NO
    • Electrostatic precipitators (ESP), CO monitoring for explosion prevention
    • Stack gas emissions, NH3, H2O, NO
    • Coal silos, CO monitoring for explosion prevention and detection of smouldering fires (only in coal fired plants)

    LaserDust measurements

    • Stack gas emission
    • Coal silo, explosion prevention

    By NEO Monitors AS based in Skedsmokorset, NORWAY.

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    Odor control for tank cleaning

    When it comes to odor management, simply cleaning the tank isn’t enough to remove the odors. Prior to cleaning, storage tanks are vented to the atmosphere in order to reduce the internal gas content to a level below its lower explosion limit (LEL). This permits safe worker access. During venting, odors escape into the atmosphere creating a nuisance to nearby residents, businesses, and employees. Furthermore, storage tank cleaning results in production downtime that reduces plant profitability.

    By OMI Industries (OMI) based in Long Grove, ILLINOIS (USA).

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    High quality gas sensor solutions for mining

    Fast, accurate and reliable measurement of CH4. The extraction of coal releases methane gas, which can mix with the air in a mine to form a hazard due to its flammability. Ventilation with fresh air from the surface is used to dilute the methane and reduce the risk of explosion. Monitoring of the methane content of the stale air exiting the mine allows the amount of ventilation to be controlled. Although our sensors are not ATEX approved for use in potentially explosive atmospheres they are suitable for monitoring air containing methane concentrations below the lower explosive limit. Our OEM products can be built into equipment which is approved for use in the monitoring of mine exhaust gas and similar applications.

    By Edinburgh Instruments Ltd based in Livingston, UNITED KINGDOM.

  • Gas detection analyzers for processing ovens & dryers

    Many industries are involved in coating products with solvent-borne materials and then employing ovens or dryers to remove the solvents from the finished product. The key hazard is an explosion from the build up of solvent vapors in the oven or dryer atmosphere. This buildup could occur by a malfunction in the production process such as: a sudden or improper amount of coating, a change in ventilation controls or excessive speed. In any of these cases, the concentration of flammable vapor has an opportunity to rise above safe levels, creating a potentially explosive mixture of vapor in air.

    By Control Instruments Corporation based in Fairfield, NEW JERSEY (USA).

  • Waste gas treatment for the semiconductor industry

    In the early 1990s no appropriate and comprehensive technical solution had been available for waste gas treatment in the semiconductor industry. Back then as well as today many industrial and research production procedures use process gases and generate waste gases. These waste gases, considered greenhouse gases, are toxic and/or highly flammable and very often pose a significant risk to production facilities and the environment. The semiconductor industry, for instance, uses perfluorocarbons, whose global warming potential is extremely high and therefore requires an efficient waste gas treatment. Combining and transporting different gases into a fab’s central waste gas system might produce highly flammable and highly explosive gaseous mixtures, which in the past has occasionally caused the total loss of entire production facilities. Particles contained within gases may also cause exhaust blockages. To eliminate these risks, process waste gases need to be treated at the “Point-of-Use” (POU) where harmful exhausts are abated immediately.

    By DAS Environmental Expert GmbH based in Dresden, GERMANY.

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    Gas Detection Solutions for Liquified Natural Gas Detection

    Liquefied natural gas owners require improved routine monitoring of facilities for safety, economic and regulatory reasons. Leaking LNG can cause explosions leading to loss of life and property. Loss of product through undetected leaks dramatically reduces a pipeline operator’s profitability. Traditional gas detectors are slow to reach and require a labour intensive process to keep maintained. IR detectors have been used but with limited success because of cross interference from other atmospheric gases.

    By Boreal Laser Inc. based in Edmonton, ALBERTA (CANADA).

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    Gas monitoring and dust monitoring for the cement industry

    LaserGas measurements

    • Preheater exit, CO monitoring
    • Electrostatic precipitators (ESP) after pre-heaters, CO monitoring for explosion prevention
    • Coal silo, CO monitoring
    • Exit of coal mill, dust filter, CO monitoring
    • Stack gas emissions, HCl and HF

    LaserDust measurements

    • Stack gas emissions
    • Coal silo, explosion prevention

    By NEO Monitors AS based in Skedsmokorset, NORWAY.

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    CO gas monitoring for coal pulverising mills

    Our range of safety analysers can offer early detection of fire / explosive conditions. From CO monitors for pulverising coal mills through to UV flame and smoke detectors installed on oil rigs and the cross-channel passenger shuttles, operated by Eurotunnel.

    By Codel International Ltd based in Bakewell, UNITED KINGDOM.

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    Gas monitoring and dust monitoring for the iron / steel industry

    • Blast furnace offgas, combustion control, CO, CO2, O2
    • Converter (Basic oxygen furnace BOF)
      • CO gas recovery
      • O2 measurement for explosion prevention
    • Electric arc furnace offgas, combustion control, CO, O2, H2O
    • Reheating furnaces, O2
    • Coking plant
      • CO analysis in oven offgas
      • O2 analysis for explosion prevention in raw coke gas or after tar precipitator
      • NH3 measurement after scrubber
      • H2S measurement after scrubber

    By NEO Monitors AS based in Skedsmokorset, NORWAY.

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    Gas monitoring instruments and systems for process NOx measurement

    Nitric acid HNO3 is an important intermediate reagent for production of several important end products, such as fertilizers, explosives, dyestuffs/pigments, pesticides, pharmaceuticals, photographic materials, plastics, and synthetic fibers. At nitric acid manufacturing plants, the Gasmet™ FTIR Gas Analyzer can be used to measure several gaseous components from the process stream for purposes of process control. A single system can be used to measure the high levels of nitrogen monoxide NO and nitrogen dioxide NO2, as well as water vapor H2O, nitrous oxide N2O, carbon monoxide CO, carbon dioxide CO2 and ammonia NH3. The fixed installation products for these purposes are the Gasmet™ CEM II measurement system, and the Gasmet™ FCX Gas Analyzers, both of which utilize the FTIR measurement technique for simultaneous multicomponent analysis of the sample gas.

    By Gasmet Technologies Oy based in Helsinki, FINLAND.

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    Gas Detection Solutions for Pipeline Leak Detection

    Natural gas pipeline owners require improved routine monitoring of pipelines for safety, economic and regulatory reasons. Leaking natural gas can cause explosions leading to loss of life and property. Loss of product through undetected leaks dramatically reduces a pipeline operator’s profitability.

    By Boreal Laser Inc. based in Edmonton, ALBERTA (CANADA).

  • Gas detection analyzers for wastewater treatment industry

    Regulations prohibit facilities from discharging flammable or explosive wastes from their processes into the wastewater collection system. These wastes are not only a fire and explosion hazard but they can also effect the efficient and effective operation of the treatment facility. PrevEx Flammability analyzers are used to continuously monitor the waste stream for flammable gases and vapors. Their unique design and operating technology make them the ideal analyzers for the harsh conditions found in the sewer environment.

    By Control Instruments Corporation based in Fairfield, NEW JERSEY (USA).

  • Gas detection analyzers for pulp & paper mills

    Flammable non-condensible gases (NCG’s) are byproducts of the wood pulping process. Health and pollution regulations prohibit the release of these gases into the atmosphere. They are usually eliminated by passing them through an incinerator or by using them as fuel in the burner of a boiler or kiln. The incinerator, boiler or kiln however can be damaged by NCG’s which have built up explosive levels. Pulp mills require the use of our PrevEx Flammability Analyzers to monitor the NCG stream and detect and divert these dangerous concentrations before they can cause damage and shut down the mill. The PrevEx analyzers accurately measure the total concentration of flammable gases present in the NCG sample. Their high sampling speed dramatically improves response time—an important factor in pulp mill applications.

    By Control Instruments Corporation based in Fairfield, NEW JERSEY (USA).

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    High quality gas sensor solutions for landfill

    State-of-the-art systems enabling easy monitoring of CO2 and CH4 gases. Capped Landfill Sites produce a range of gases, mostly methane and carbon dioxide. Legislation requires that these gases are safely removed from beneath the cap to avoid a physical explosion due to the build-up of pressure beneath the cap. Safe disposal usually entails burning such as flare stacks, internal combustion engines or by processing to produce Methane gas fuel. For large sites with access to power distribution infrastructure internal combustion engines are used to generate electricity which is fed into the local electricity grid. All of the above safe disposal process require the measurement of the Methane content (and in many cases the CO2 concentration). Edinburgh Sensors provide gas sensors for both Methane and CO2 that can be integrated into landfill gas processing systems enabling easy monitoring of these gases.

    By Edinburgh Instruments Ltd based in Livingston, UNITED KINGDOM.

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    Portable and fixed gas analysers for landfill perimeter monitoring

    Controlling potentially explosive and asphyxiate gases from escaping off site is important for meeting Health and Safety standards and protecting the local environment.

    By Geotech based in Leamington Spa, UNITED KINGDOM.

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    Geotextiles solutions for pipeline construction areas

    The world registers less than 3.5 million kms of pipelines in 120 countries. Pipelines conveying flammable or explosive material, such as natural gas or oil, pose special safety concerns. To avoid pipeline instability and damage caused by differential settlements, TenCate Geosynthetics EMEA offers you the optimum solution from its wide range of reinforcement geosynthetics: TenCate Geolon PET & PP, TenCate Miragrid GX & TenCate Rock PEC ranges.

    By TenCate Geosynthetics Netherlands bv based in AE in Nijverdal, NETHERLANDS.

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    Industrial air pollution control for the chemical and petrochemical industry

    CTP systems can be found in every leading production company: thanks to the experience and the expertise developed in partnership with our customers for processes with inconsistent waste gas volumes; varying concentrations of organic components; gases contaminated with aerosols. CTP has installed systems for waste gas streams ranging from 1,000 to 200,000 Nm³/h. CTP supplies this industry with mainly catalytic systems, regenerative thermal oxidisers (RTO) and adsorbers. As the flue gases in this industry are often explosive mixtures, CTP systems have to be completed with special safety conduits and filters to help reduce hazards during continued operation.

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    Applications and Air Pollutants Removed in the Chemical, Pharmaceutical and Plastics Industries

    Supplying for over 35 years reliable air pollution control equipment and systems for removal of all gaseous compounds, particulate and odors from chemical process operations, reactors, dryers, calciners, membrane cells, pharmaceutical reactors and tablet dryers, crystallizers, vessel filling and storage vent emissions, emergency scrubbing of high concentration gas releases from cylinders, vacuum pump emissions, Quench /scrubber systems for acid gases and particulate from high temperature thermal oxidizers.  Gaseous emissions from piloting operations and research lab hoods. Specialty NOx abatement for explosives manufacturing and other process operations. Recovery and re-concentration of acids and other gaseous contaminants including by-product production.

    By Bionomic Industries Inc. based in Mahwah, NEW JERSEY (USA).

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