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  • 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
  • Monthly Preview: December 2007

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

  • 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.

  • Control valves for slurry service

    In this installment of Ask The Experts, noted process control authority and CONTROL Columnist Béla Lipták and his cadre of automation experts answer a reader’s question regarding control valves for slurry services.

  • 10 tips for diagnosing control valve problems

    To make the most of diagnostic equipment used in chemical processing, technicians must stretch their knowledge of control valves and related diagnostic equipment that keeps tabs on valve health and safety.

    David W. Douglas
  • Translate lofty financial goals

    A profit-per minute metric can really optimize operations. The chemical industry is discovering that it needs better tools to help capitalize on the products and maximize profits — to generate cash faster. It needs a new metric: profit per minute.

    Richard Batty, Maxager Technology
  • Distillation control and optimization, Part 3

    Control's Béla Lipták continues his series on control of distillation processes, this time focusing on managing reboiler flow, temperature, feed rate, loading and reflux for economy, stability and safety.

    Béla Lipták, PE, CONTROL Columnist
  • Chemical Processing Vaaler Award 2007

    Chemical Processing is now accepting entries for its biennial Vaaler Awards. These awards honor products and services that have significantly improved the operation and economics of chemical plants. Download an a PDF document below that details eligibility requirements, award categories, entry details, winner notification and contact information.

  • Implementing an operations management system

    Things are changing at warp speed. Manufacturing companies are collecting large volumes of data from data systems but improvements are possible only if the data are analyzed and developed into useful business parameters.

    Robert Wojewodka, The Lubrizol Corp.
  • HMIs evolve in process control

    New HMI technology is putting a whole new (inter)face on how operators view control systems information, while at the same time driving human error out of systems and improving safe work practices.

    Ian Nimmo, president, User Centered Design Services LLC
  • Distillation control and optimization, Part 1

    Control columnist Bela Liptak describes the distillation process and PID-based controls, reviews optimization strategies, and shows how advanced controls can cut operating costs of distillation.

    Béla Lipták, PE, Control Columnist
  • Vaaler Award Winners

    Editor in Chief Mark Rosenzweig congratulates the winners for CP's annual Vaaler awards, given to the products and services that most improve the operations and economics of plants.

    Mark Rosenzweig
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