Articles

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  • More about cost estimating process analyzer projects

    Gary Nichols concludes his series on the proper design and project management of process analyzer systems, this time addressing estimate accuracy and cost by project stage and work breakdown structure.

    Gary D. Nichols, PE, Principal Control Systems Engineer, Jacobs Engineering Group
    05/01/2007
  • What’s in the air for continuous emissions monitoring?

    More attention to mercury and increased acceptance of predictive approaches is emerging. Such monitoring not only can keep plants on the right side of regulators but also can help provide insights for optimizing operation of equipment.

    Mike Spear, editor at large
    04/13/2007
  • Flame Modeling Provides Matchless Results

    A computer simulation helps solve a refinery combustion problem. Finding ways to limit NOx from fired heaters, especially under stringent environmental regulations, has become a major concern for the petroleum refining industry. Complying with new stricter regulations, a Texas refinery upgraded the burners in one of its large cylindrical furnaces.

    Roberto Ruiz, Ph.D., John Zink Co.
    04/13/2007
  • Cost estimating for process analyzer projects

    This article addresses cost estimating for capital projects on which an analyzer system is installed, through start-up and commissioning of the project, to the resultant lifetime cost savings that can be gained.

    Gary D. Nichols, PE, Principal Control Systems Engineer, Jacobs Engineering Group
    03/30/2007
  • Sample pump eliminates emissions

    A compact system significantly improves analyzer accuracy. This innovative turnkey solution for analyzer emissions is a solid-state pump with an ultra-sensitive pressure regulator that mixes a compatible gas with the analyzer samples to achieve a constant vent header pressure — even during times of plant upset.

    Kazi Hassa, Parker Hannifin
    03/20/2007
  • Compelling reasons to choose an insertion magnetic flow sensor

    Measuring flow rates and volumes of water and chemicals in the water, wastewater and chemical treatment industries requires the latest, simple to use and cost-effective technology that can keep up with the rigorous demands of the various applications.

    03/14/2007
  • Vehicle emissions case promises broad impact

    A Supreme Court ruling could affect voluntary efforts to reduce greenhouse gas emissions, according to Mike Spear, editor at large, in his monthly End Point column.

    Mike Spear, editor at large
    01/08/2007
  • pH sensor stands up to tough conditions

    Design provides improved reliability in a polymer-precursor batch reactor. Sensors must respond quickly and survive a harsh environment. Poor probe reliability can make the difference between a process that makes money and one that doesn’t.

    Kyle Becker, Polychemie
    01/08/2007
  • pH measurement faces acid test

    Quest for more reliable readings prompts development of tougher and more-intelligent sensors. While pH control often plays a crucial role in processing, achieving reliable readings remains challenging at many sites. After all, pH sensors frequently serve in aggressive chemical environments.

    C. Kenna Amos, contributing editor
    12/05/2006
  • NeSSI’s success should be a lock

    The New Sampling/Sensor Initiative or NeSSI that replaces tubing, fittings and other hardware in a sampling system with miniature modular components makes sense. Enhancements now in the works should assure its success.

    Mark Rosenzweig, editor in chief
    11/29/2006
  • Get answers to your biomonitoring questions

    Guidance for chemical manufacturers, processors, and distributors about Section 8(e) of the Toxic Substances control act was issued on September 14, by the U.S. Environmental Protection Agency (EPA). Chemical Processing's Regulatory Editor Lynn Bergeson discusses the new regulation.

    Lynn Bergeson, regulatory editor
    10/24/2006
  • NeSSI tames the communications monster

    The new sampling/sensor initiative (NeSSI) is moving steadily to fulfill its original promise of increased efficiencies, costs-savings, and micro-analytic capabilities despite recent growing pains related to fieldbus.

    Jim Montague, Executive Editor
    09/15/2006
  • Biomonitoring gets a going-over

    The current state of biomonitoring is detailed in the much anticipated report issued July 24 by the Committee on Human Biomonitoring for Environmental Toxicants of the National Academies, Washington, D.C.

    Lynn Bergeson, regulatory editor
    09/11/2006
  • Develop an air-tight defense

    Chemical processors face significant challenges in controlling fugitive emissions. The emissions escape from valves, compressors, pumps, piping components, etc. It is a difficult task, but necessary to avoid penalties and other liability.

    Lynn Bergeson, regulatory editor
    04/24/2006
  • Choose the right temperature sensor

    There’s no simple solution to achieving accurate temperature measurement. It’s a combination of knowing the inherent accuracy of particular sensor types, and how environmental factors can create further measurement uncertainty and the sensor calibration techniques available to reduce this uncertainty.

    Cal Swanson, Watlow Electric Manufacturing Co.
    04/24/2006
  • Soft sensors win hard jobs

    Virtual instruments are gaining increasing roles — and capabilities — for closed-loop process control.

    C. Kenna Amos, contributing editor
    01/04/2006
  • Flow Meter Focus

    ChemicalProcessing.com introduces Flow meter focus, a compilation of useful articles, news, white papers and product information related to flow meters.

    09/28/2005
  • Today’s China Syndrome

    The country boasts not just booming exports but a strong desire for the best technology.

    Mike Spear, editor at large
    09/27/2005
  • Innovative corrosion monitoring solutions enhance process optimization

    Sensors now can provide data on both general and localized corrosion that allow corrosion to be treated as a real-time process variable. Using such data effectively can play an important role in optimizing plant operations.

    Dawn C Eden, David A Eden and Russell D Kane, InterCorr International, Inc., Houston, Texas
    08/16/2005
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