Articles

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  • Keep motor drives ready for action

    Annually reforming stored or non-operational drives ensures that they remain ready to operate at peak performance. Failing to do this can lead to capacitor damage when the converter starts to operate.

    Kjell Ingman and Mikko Lammi
    10/16/2004
  • Improve Your Project's Prospects

    Management always strives to increase the corporation's long-term value to its owners. As a result, it is very important to understand how they assess potential investments to get your project approved.

    Douglas C. White
    10/08/2004
  • Give gaskets a squeeze

    Reevaluate gasket use when operating conditions or maintenance procedures change.

    Andrew Sloley
    09/16/2004
  • Sealless pumps get their turn

    Cost and design improvements are spurring increasing use, particularly for handling hazardous fluids.

    Nick Basta
    09/16/2004
  • Put Your Column on the Map

    Residue curve maps (RCMs) can be employed in a variety of ways, including system visualization, evluation of data, and process synthesis, modeling and troubleshooting

    Scott Barnicki
    09/16/2004
  • Adaptive control takes a leap forward

    The next generation of adaptive controllers will identify a process model quickly and automatically and provide process model parameters that can be displayed, trended and diagnosed.

    Gregory K. McMillan, Washington University, Mark S. Sowell, Solutia, and Peter W. Wojsznis, Emerson Process Management
    09/14/2004
  • Get control of reactor temperatures

    A reader has a plug-flow reactor whose temperature is starting to cycle. The company tried to tuning both controllers but saw no improvement. Read about potential solutions to this reader's problem.

    Diane Dierking, Senior Editor
    08/05/2004
  • Energy savings are in the air

    Anywhere compressed air can be eliminated represents an opportunity to reduce system operating expenses. Often, this reduction means fewer compressors must operate to meet the plant's air requirements.

    Christopher Schmidt, Mark D'Antonio and Alan MacDougall
    08/05/2004
  • Sidestep side-draw control surprises

    The simplest approach to control side-draw distillation columns uses flow control on the side product. This solution, however, is not ideal for all side-draw control situations.

    Andrew Sloley, contributing editor
    07/01/2004
  • Motor Selection Made Simple

    Follow these straightforward steps to help you select the right motor for your centrifugal pump

    William McNally
    07/01/2004
  • Rev up energy savings

    Electric motors in continuous or near-continuous service have high energy costs, even at the relatively low electric rates common in much of the chemical industry. Don't squander savings opportunities when considering motor replacement

    05/13/2004
  • PVDF Tackles Bromine Corrosion

    A challenge to design and fabricate, the largest-known PVDF-lined vessels now successfully serve at PTA plants

    Diane Dierking
    05/13/2004
  • Preheater points out the value of cooling off

    Lack of attention to detail in conceptual design can hide many sins. Put the problem aside and then ponder it again. A fresh look may lead to an even better solution.

    05/12/2004
  • Don't Send Money Down the Drain

    A versatile system meets Federal standards while minimizing VOCs in wastewater

    Terrence T. Virnig, P.E., C.H.M.M., Synthetech Inc., and John A. Meidl
    03/31/2004
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