real-time gas monitoring Articles

  • Operational Intelligence: The ability to monitor resources and operations in real-time

    The terms “knowledge management” and “learning organizations” were but a few of the mantras often heard in the business world during the mid to late 1990’s. And, of course, there is the old adage of “Knowledge is Power”.During this period and even today, various companies and organizations are actively engaged in identifying what they term as their core critical skills and knowledge. One ...


    By VisionMonitor Software, LLC

  • Real Time Measurments of Acetylene in Ethylene Manufacturing Process

    Keywords Tunable Diode Laser, Wavelength Modulation Spectroscopy, Analyzer, Acetylene, Ethylene, Acetylene Converter Abstract The analyzer, based on near infrared Tunable Diode Laser Absorption Spectroscopy (TDLAS), was developed for the measurement of acetylene in process streams. Measurements of acetylene were made as under laboratory conditions and in ...

  • Real-time O2 monitoring in VCM plants using the In-situ laser gas analyzer – Case Study

    Vinyl Chloride Monomer (VCM) Vinyl Chloride Monomer is a colorless, flammable gas. It is of very great importance as feedstock in the production of polyvinyl chloride (PVC), one of the world´s most versatile thermoplastics. Originally, acetylene has been used as feedstock for VCM production but was replaced stepwise by the inexpensive ethylene. Complete changeover to almost ...

  • Teledyne Scientific Instruments - Direct Sampling MS and MS/MS for Real Time Air Monitoring

    Presented at the 44th ASMS Conference on Mass Spectrometry, May 12-16, 1996 Portland, OR. Published in the Proceedings of the 44th ASMS Conference on Mass Spectrometry May 12-16, 1996 Portland, OR, in press. DIRECT SAMPLING MS AND MS/MS FOR REAL TIME AIR MONITORING C. Remigi, P.T. Palmer, Dept. of Chemistry & Biochemistry, SF State University, SF, CA ...


    By Environics, Inc.

  • Field demonstration of a near-real-time multi-metals ambient fence line monitor case study

    National emissions standards for hazardous air pollutants (HAPs) are required under Section 112 of the Clean Air Act to limit the release of specified HAPs. Permitting, monitoring and enforcement of these emission limits are an integral part of managing air quality to protect human health and the environment. However, this is difficult and highly uncertain in the case of fugitive emissions ...

  • XiltriX real-time monitoring solution operating seamlessly for 2 years at Portland Oregon IVF laboratory

     XiltriX instrumental in controlling the Oregon Reproductive Medicine IVF laboratory parameters; keeping gametes and embryos safe at all times ...


    By XiltriX

  • Biofuels Gas Monitoring

    The Customer The Company is one of the world’s leading developers and producers of advanced fuels and green chemicals. The Process The Company uses a gasification process that breaks down wood chips, waste and other feedstock using plasma technology. The process produces a uniform synthetic gas (syngas) that is used to power their turbine engines. ...

  • 24 hours per day real-time groundwater data during dewatering and stress handling - Case Study

    Project Widening of motorway A9 Gaasperdammerweg – Amsterdam Client Van Kessel Bronbemaling Principals ...


    By Eijkelkamp Soil & Water

  • Green House Gas Flow Monitoring

    This article addresses the challenges and solutions to flow measurement of green house gases in various industry applications.  GHG flow monitoring regulations are discussed and addressed. Last year the EPA implemented new regulations entitled “Mandatory Reporting of Greenhouse Gases.” The new regulations called for certain facilities emitting 25,000 metric tons or more per year ...

  • Case study - Monitoring landfill gas

    Infrared absorption Infrared absorption is usually the preferred method for measuring methane and carbon dioxide. Most gases absorb radiation in the infrared region. The wavelength of radiation that is absorbed is determined by the natural vibration frequencies of the molecule. These natural frequencies will depend on several factors. Thus different gas molecules have different natural ...

  • FTIR gas monitor for diverse applications

    QUANTITECH, a leading supplier of environmental monitoring instrumentation, has recently supplied EURO Environmental Services in Ireland with a transportable Gasmet FTIR multiparameter gas analyser which EURO Environmental's Managing Director Geoff Fitzpatrick says, “is proving invaluable in many varied applications across a broad selection of industries.” With headquarters in Drogheda in Ireland ...


    By Quantitech Ltd

  • The latest ground Gas monitoring innovations

    The latest Ground Gas monitoring innovations   The traditional methodology for ground gas monitoring has been ‘spot monitoring’ – taking event readings at various set times to predict the sub surface gas regime on both on Brownfield and Landfill sites.     This methodology is in general current practice under both the EU Landfill Directive ...


    By Shawcity Limited

  • A Portable High Speed Gas Chromatograph for Field Monitoring

    Over the last two decades a variety of portable or transportable gas chromatographs (GC) have been specifically designed for field use. Each instrument has introduced innovations that have simplified the task of on site air monitoring. Portable instrument users are well aware of the advantages of field sampling. These advantages include more representative results because there is no sample ...


  • Gas Monitoring for Ventilation Control and Energy Management

    The growing demand for underground and enclosed parking and maintenance garages (resulting from limitations on land availability) has increased the awareness and need for proper ventilation and control systems. In addition, increased health and safety programs have only added to the concerns of toxic and combustible gases in confined or enclosed spaces. Historically, ventilation and make-up air ...


    By Arjay Engineering Ltd.

  • Laser gas detector systems for greenhouse gas emissions monitoring

    Two types of portable laser based gas detector for measuring emissions of the greenhouse gases carbon dioxide (CO2) and methane (CH4) from oil and gas operations are described. A scanning open path detector was developed within a Cooperative Research and Development Agreement (CRADA) with the USEPA. This system scans multiple paths across an area source in rapid succession, enabling calculation ...


    By Boreal Laser Inc.

  • Gas Monitor Bump Testing vs Calibration

    We are often asked to explain the difference between calibrations and bump testing. This is a controversial subject. OHS would have you do a full calibration before each use. In practice, our customers come up with their own intervals. If the gas monitor is used infrequently, say once a month, it should be calibrated every time to give you confidence that the unit is going to respond as it ...

  • Effects of averaging time on predicted gas concentrations

    The potential consequences of a particular gaseous emission usually relate to a specific averaging time. However, the averaging time associated with gas monitoring data in the region of a discharge may differ from the averaging time implicit in a model employed to predict the concentration resulting from that emission. Tables of factors exist for taking account of such differences and recent ...


    By Inderscience Publishers

  • Improved HF monitoring in Primary Aluminium Smelters with Laser Gas Detectors

    Primary aluminium smelting generates large amounts of hydrogen fluoride gas (HF). Concerns for worker safety and ambient air quality require that HF be monitored at several locations in smelters. Historically, a variety of methods have been used for HF monitoring. Cassette samplers and wet chemistry techniques, coupled with complex and expensive ...


    By Boreal Laser Inc.

  • Portable laser gas detector systems for landfill CH4 and CO2 monitoring

    There has recently been a marked increase in interest in detecting and quantifying emissions of the greenhouse gases (GHG) carbon dioxide (CO2) and methane (CH4) from landfills in North America and Europe. The primary drivers for this increased interest are: new and pending legislation requires demonstrated reductions in GHG emissions; permits to expand existing facilities require more accurate ...


    By Boreal Laser Inc.

  • PureAire Combines Oxygen and CO2 Sensors to provide a Dual Gas Monitor to the Marketplace

    As a recognized leader in O2 safety monitoring, PureAire recently explored the need for an O2 monitor where carbon dioxide is used. There are four key cryogenic gases; nitrogen, helium, argon, and carbon dioxide (CO2), which can create an oxygen deficient atmosphere. Material Safety Data Sheets (MSDS) covering cryogenic gases cite that a cryogenic leak can create an unsafe ...

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