gas controller Articles

  • Tailor-made controls for hazardous, corrosive and subsea environments

    With the oil and gas industry in general facing pressures of extracting from marginal fields on and off-shore, it is vital that every platform is designed to be as energy efficient and productive as possible. In a recent interview Kevin Aston, a product expert at Rotork Midland, said: “Midland-ACS, which is the industry recognised brand of Rotork Midland, has been providing products and ...


    By Rotork plc

  • Gas Chromatography: MCERTS Certification for Ambient Air Analysis on Benzene and VOCs

    Due to environmental issues, the world of gas analysis is evolving very rapidly. Governments set the rules to limit and control the environmental pollution through legislation. Volatile organic compounds (VOCs), often produced by human activities, are amongst the sources of pollution that need to be identified and quantified for safety reasons. Exposure to high concentrations of certain VOCs is ...


    By Chromatotec Group

  • Greenhouse Gas Emissions Control

    Most of the time, people think about Greenhouse Gas (GHG) emissions with carbon dioxide, which is the most common of the GHGs. While fairly typical, carbon dioxide isn’t the only GHG U.S. Environmental Protection Agency (EPA) regulates.  Since EPA has begun regulating GHG emissions under its Clean Air Act authority, sources of emissions from others may require add-on air pollution ...

  • Controlling acid gas mists

    Gas cleaning New and strict pollution regulations in metallurgical plants worldwide are restricting particulate and acid gas emissions to extremely low levels. Because of that, sulphuric acid plants are being installed to remove and utilise S02 in gases resulting from the roasting of sulphide ores, smelting of ores, and burning or regeneration of spent acid or acid sludge from ...


    By Beltran Technologies, Inc.

  • Advances in gas control technology in the brewery

    The use of nitrogen as a process gas, foam enhancer and flavour modifier has come to the fore over the last 10 years, with dissolved gas specifications becoming more stringent. Increasingly, marketing and consumer requirements for a targeted product identity or image have to be met, not only for taste but, perhaps equally as importantly for the consumer, ...

  • Gas flow control method of recycling gas drilling technology

    Recycling gas drilling is a new drilling technology. The paper based on the theory of gas transient flow, a set of theoretic models of gas flow control at the export of annulus are set up in combinations of the principles of the seepage flow mechanics and the characteristics of recycling gas drilling technique. According to the basic laws which the flowing gas should comply with, the properties ...


    By Inderscience Publishers

  • Controlling H2S Emissions from Landfill Gas

    A major US waste handling company operates a large landfill in Florida, and in 1992, when Hurricane Andrew struck southern Florida, the landfill saw a huge increase in the amount of C&D waste. Shortly after this, the levels of H2S started dramatically rising. This company evaluated several technologies for the removal of H2S, which was estimated to be as high as 5000 ppmv, with up to 2-3 tons/ ...


    By Merichem Company

  • Economic damage control for greenhouse gas emissions

    Future emissions of trace gases are intrinsically linked to economic growth and abatement policies, which in turn, are governed by expectations of greenhouse damages. Trace gas indices that depend upon future emissions can be calculated either on the basis of emissions scenarios, such as those devised by the IPCC, or using optimal control techniques where the trade-off between damages and ...


    By Inderscience Publishers

  • Gas-assisted injection molding technical control

    The time and pressure of gas injection molding should be strictly controlled. The temperature of the molds should be stritly controlled,so that the cooling of thermoplastic in the cavity can be kept at an appropriate speed,which shall be of avail for the forming of gas cavity.So as a mould maker should be very good at the gas-assisted ...


    By Focare Mould Co.,Ltd.

  • Manufactured Gas Plant - Odor and VOC Control

    Products & Equipment Used: AC-645 Long Duration Foam AC-904 Long Duration Foam Pneumatic Foam Unit 400/25 Application Summary: Rusmar Long Duration Foam products have been used at numerous manufactured gas plant facilities. Often, tanks containing coal tar were filled with soil and other debris from the site before being ...


    By Rusmar Inc.

  • 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.

  • Chapter 10: Decentralised control of greenhouse gas emissions: coordination and cooperation

    In Chapter 2, we considered the difficulties of obtaining international cooperation in the control of CO2 emissions. The approach adopted in this chapter assumes there is an ‘empowered’ United Nations, as a principal, that coordinates its members (agents) toward a common goal, which makes this a team-like principal agent structure. We shall show that if at least two countries commit themselves to ...


    By Inderscience Publishers

  • Electrical control valve actuators on oil and gas production separators

    Overview Wherever there are oil and gas production facilities there is one specific piece of equipment that is almost always present, the separator. Depending on the nature of the reservoir, oil, gas and water are present in varying proportions. The first stage of any hydrocarbon production process once the product has started to flow from the well is to separate the gas from the liquids and ...


    By Rotork plc

  • Control valve actuators: Their Impact on control and variability

    Sector: Oil & gas Category: Electric actuators Products: CVA Electric control valve actuators provide excellent performance and are ideal for oil and gas wells in remote production fields. Instrument air supply systems are costly and require significant energy to run. If mains power isn't available, an instrument air supply isn't ...


    By Rotork plc

  • Gas-to-Energy plant; production of electricity with landfill gas

    Type     Degassing installation HOFGAS®-C7/1000 + HOFGAS®-Ready 600 Commissioning      May 2002 Site     Landfill of Iles Les Meldeuses Situation The landfill is being degassed by a plant we supplied in 1998. For the planned extension phase Hofstetter France Sarl was committed to work out a concept for the enhancement ...


    By Hofstetter BV

  • NOx Control on a Budget

    National, regional and local regulations to reduce NOx emissions have prompted the development and implementation of a number of NOx control technologies – from selective catalytic reduction and low-NOx burners to overfire air and flue gas recirculation. Induced flue gas recirculation (IFGR), a design derivative of conventional forced flue gas recirculation, has demonstrated NOx reductions as ...

  • Gas-to-energy plant; production of electricity with landfill gas

    Type      Degassing installation HOFGAS®- Ready 600 Commissioning      January 2002 Site      Landfill of Bovenfeld (NL) Situation The 9ha large landfill site Bovenfeld is located 150km northeast of Amsterdam. The resulting landfill gas has to be cleaned, in accordance with the local legislation. A degassing ...


    By Hofstetter BV

  • Control valve actuators: Their Impact on control and variability

    Electric control valve actuators provide excellent performance and are ideal for oil and gas wells in remote production fields. Instrument air supply systems are costly and require significant energy to run. If mains power isn't available, an instrument air supply isn't practical, especially when only a few control valves are in use at a location. Solar powered DC electric actuators are ideal for ...


    By Rotork plc

  • Metal Coating Emission Control

    The use of regenerative thermal oxidizers is expanding into applications where they wouldn’t have been considered years ago, says Mike Scholz As the first generation of oxidizer systems in the industry nears the end of their service life, many canmaking plants face repair or replacement of their existing air pollution control systems. Like many others in the industry, a Silgan canmaking ...

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