Articles

341-360 of 512 < first | | | last >
  • Control valve diagnostics

    Health monitoring leaves fewer reasons to live with stiction, wrong-sizing and excessive wear.

    Sheila Kennedy
    10/19/2007
  • Improve control loop performance

    Specification of control valves doesn’t adequately emphasize the very basic requirement that valve position respond in a timely manner or even at all — leading to process variability.

    Gregory K. McMillan, Emerson Process Management
    10/18/2007
  • Signet 8900 multi-parameter controller features modular design

    The Signet 8900 Multi-Parameter Controller takes the concept of modularity to the extreme. Each 8900 is field commissioned with the users specified combination of inputs, outputs, and relays using simple-to-install modular boards into the base unit.

    10/16/2007
  • Ethanol plant boosts output and saves energy

    Implementation of advanced process control for distillation and dehydration steps allowed a Wisconsin plant to meet competing goals.

    Jacob Duke, Badger State Ethanol, and Lina Rueda, Pavilion Technologies
    10/16/2007
  • Monthly Preview: December 2007

    Here's a look at what will soon be featured on ChemicalProcessing.com. Be sure to check back for the latest articles, news and columns before you see it in print.

    10/02/2007
  • Need a tower internal specialist?

    For over 35 years, the Sulzer Chemtech Field Services group has been a successful tower internals specialty company, performing tray and packing installation, tower maintenance and plant turnaround projects.

    09/17/2007
  • No more turnaround headaches

    After the purchase of Enhanced Separation Technologies, Sulzer Chemtech USA now offers a more complete line of equipment and services for column repairs, maintenance and turnarounds.

    Sulzer Chemtech USA
    09/14/2007
  • Distillation, Part 5: Multiple Products

    In Part 5 of this series on distillation control and optimization, we find that adding a side-stream component to your process gives an additional degree of freedom, but makes it even more essential to not mismatch the variables.

    08/28/2007
  • Equipment & Services: August

    Chemical Processing's Equipment & Services feature provides a variety of production equipment, supplier services and parts.

    08/22/2007
  • Equipment & Services: July

    Chemical Processing's Equipment & Services feature provides a variety of production equipment, supplier services and parts.

    07/24/2007
  • Properly protect centrifugal pumps

    Consider various factors when selecting how to guard against low flow, Andrew Sloley says in this month's Plant Insites column.

    Andrew Sloley, contributing editor
    07/11/2007
  • Two bulk conveyors prove better than one

    Engineers at EaglePicher Corp. in Quapak, Okla., faced some unique problems in manufacturing high-purity isotopic chemicals and wound up addressing them via a unique solution.

    David Boger, Flexicon Corp.
    07/11/2007
  • Squeeze More from Your Motors

    By integrating smart motor control centers that will monitor energy consumption a plant can remove wasteful energy expenditure, prevent unplanned downtime, and improve overall operational efficiency. Recent tax code amendments make these improvements inviting.

    Moin Shaikh, Siemens
    06/07/2007
  • What is taking so long?

    Despite its 30-plus-year history, advanced process control (APC) applications remain few and far between, but it doesn’t need to be that way. Dave Harrold, cofounder of the AFAB Group, reports.

    06/01/2007
  • Gamma scanning seeks an inside edge

    Many companies decide not to build up certain capabilities in-house mainly because they don’t have sufficient regular demand for them. Gamma scanning of distillation columns is a case in point, but on-site scanning specialists may be the wave of the future.

    Mike Spear, editor at large
    05/08/2007
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