process gas monitoring Articles

  • Process analytics in claus plants – Case Study

    Sulfur recovery The relatively high sulfur content of the still available crude oil and natural gas reserves and the more stringent standards for sulfur emissions from oil, gas, and chemical processing facilities demand reliable and cost effective technologies for sulfur recovery. Sulfur recovery refers to the conversion of hydrogen sulfide (H2S) as byproduct of natural gas plants and ...

  • Online Analyzers Improve Control of Chloramination Processes in Milwaukee

    The Milwaukee Water Works is a national leader in providing high quality drinking water and monitoring water quality. Since 1998, it has invested $227 million in its infrastructure, from treatment plants to distribution systems, to ensure high quality drinking water and reliable supply. The Milwaukee Water Works treats Lake Michigan water with Ozone gas as a primary disinfectant because it ...


    By ASA Analytics

  • Modular treatment system neutralizes process water

    A self-contained pH control and monitoring sys- tem for ready mixed operations yields clean water for recycling or permitted discharge to the environment. Fortrans' Model 5000S uses car- bon dioxide gas to neutralize high-pH process water, offering precise alkalinity monitoring and control of water in pits, settling basins and other containment areas, as it lowers total suspended solids. Designed ...


    By Fortrans, Inc.

  • High sensitivity CO2 monitor for CO2 geological sequestration efficiency monitoring

    Canadian prosperity is currently linked to revenue generated from processes that produce large volumes of greenhouse gasses as a by-product. Under evidence that the human fingerprint on our planet is in direct correlation to global climate change, the monitoring and control of greenhouse gas emissions has become a subject of recent focus among many sciences. Recently, legislation has been imposed ...


    By Boreal Laser Inc.

  • Complete solids retention activated sludge process

    In a slaughterhouse's full-scale extended aeration activated sludge wastewater treatment plant (WWTP), operating under complete solids retention time, the evolution of mixed liquor suspended solids (MLSS) and mixed liquor volatile suspended solids (MLVSS) concentration, food to micro-organisms ratio (F/M) and substrate utilization rate (SUR) were studied for over a year. Biomass growth phases ...


    By IWA Publishing

  • 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 ...

  • Oxygen Monitor for FOUPs in Semiconductors and Cleanrooms

    Over time, the contamination control requirements in the semiconductor industry have become more stringent. Employees now must spend more time adhering to cleaning protocols to preserve the sanitary nature of the environment and comply with regulations. The front-end unified pod (or FOUP) began appearing in semiconductors in the 1990s, serving as a transportation box to safely and ...

  • Pollutant monitoring in sludge treatment wetlands

    Phragmites australis for sludge dewatering and stabilization processes have been widely proved. The presence of reeds, indeed, efficiently allows solids dewatering and organic matter stabilization in order to obtain a stabilised product that can be suitable for land application, even if its environmental impact has to be considered. The actual revision of the European Union's Working Document on ...


    By IWA Publishing

  • How Does a Gas Analyser Work?

    Whatever you want to detect, you need to identify a property of the object that is easy-enough to measure. When it comes to monitoring and analysis of gaseous species (atoms or more commonly molecules), it turns out that it often is possible to utilize the optical properties of the gas. You need a light source, a light detector, and a characteristic behaviour of the gaseous species in question ...


    By Opsis AB

  • Carbon dioxide gas case study

    Application Moisture] is measured in carbon dioxide gas pipelines and processing plants. Problem The presence of moisture in carbon dioxide gas promotes corrosion. Perhaps more significant is the fact that moisture will readily form ice when pressure is reduced. The ice can readily freeze up pressure regulators, valves, and orifice plates causing a loss of flow and even ice ...

  • NovaGerar landfill gas to energy project

    Overview The objective of the NovaGerar Landfill Gas to Energy Project in Nova Iguaçu - Rio de Janeiro, Brazil is to explore the landfill gas (LFG) collection and utilization activities of the landfills managed by S.A. Paulista. This involves investing in a gas collection system, leachate drainage system and a modular electricity generation plant at each landfill site (with expected ...

  • Are you using the right monitor for CO2?

    Carbon dioxide, (CO2) detectors are commonly used to protect workers from leaks in fast food establishments and restaurants.  The OSHA, ACGIH and NIOSH CO2 threshold limit value for 8 hours, (TLV) is 5,000 PPM, and the ACGIH and NIOSH short-term exposure level, (STEL) is 30,000 PPM.  Although these agencies established worker exposure levels, they also all state: ...

  • Laser Gas Detector LGD F200

    Laser gas detection with innovative, easy-to-integrate OEM modules Diode Laser based gas detection gains increased interest in the industry as it offers significant benefits in terms of selectivity, stability and low maintenance. Axetris provides innovative gas detector modules as basis for extractive process control systems and for continuous emission monitoring systems (CEMS). The ...


    By Axetris Ag

  • Who Needs Continuous Emissions Monitoring?

    Continuous emissions monitoring (CEM) is about monitoring air pollutants generated by a specific activity and emitted to the ambient air, typically through a tall stack or other exhaust pipe. The “activity” can be some industrial process like a power plant or a waste incinerator, but it can also be on a much smaller scale such as a car equipped with an internal-combustion engine. ...


    By Opsis AB

  • Advanced Gas Detection Technology supports Arctic Greenhouse Gas Research

    Enormous quantities of greenhouse gases (GHG) exist within Arctic ice and frozen soils, so with the threat of global warming, a clear understanding of the relationship between GHG in the atmosphere and in the ice/soil is vital because melting of permafrost could cause a dangerous climate tipping point. There can be few more challenging environments for monitoring gases, but PhD researcher Martin ...


    By Gasmet Technologies Oy

  • Advanced gas detection technology supports arctic greenhouse gas research

    Enormous quantities of greenhouse gases (GHG) exist within Arctic ice and frozen soils, so with the threat of global warming, a clear understanding of the relationship between GHG in the atmosphere and in the ice/soil is vital because melting of permafrost could cause a dangerous climate tipping point. There can be few more challenging environments for monitoring gases, but PhD researcher Martin ...


    By Quantitech Ltd

  • Understanding the Benefits of Fixed Gas Detection

    "Fixed gas detection is an essential method of ensuring maximum protection for personnel and plant. There are a variety of technologies available for a multitude of applications. Understanding fixed gas detection is the first step in providing safety." What is fixed gas detection? Fixed gas detection is installed with the aim of providing continuous, area and personnel protection. ...


    By a1-cbiss

  • CO2 Gas Hazards in the Brewing Industry

    The hazards associated with CO2 in the brewing industry are well known, yet people still die needlessly every year in tragic and completely avoidable accidents in breweries. Just last year in Germany, which has a good safety record, two workers died in separate incidents at the same brewery. In the first incident, the owner was found dead with his head and torso in a beer mixing tank. It is ...

  • Gas detector communication technology for offshore oil and gas platforms

    In few applications is safety as important as on offshore oil and gas platforms. Explosive hazards from hydrocarbon gases and vapours are an ever-present risk, whilst toxic hydrogen sulphide gas and depleted oxygen environments can pose significant risks to personnel. Gas detectors are therefore essential to provide dependable early warning of gas hazards. Gas detectors are permanently installed ...

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