Process Engineering White Papers

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  • Why WirelessHART? The Right Standard at the Right Time

    The WirelessHART standard provides a robust wireless protocol for the full range of process measurement, control and asset management applications. Based on the proven and familiar HART protocol, it enables users to quickly and easily gain the benefits of wireless technology while maintaining compatibility with existing devices, tools and systems.

    HART Communication Foundation
    11/16/2007
  • Design Considerations for High Liquid Rate Tray Applications

    Except for a few odd services, high liquid rate applications are typically the domain of either trays or random packings. Aside from the distributors, random packing designs are rather straightforward with the designer choosing the proper size to accommodate the fluid flow rates and achieve the desired efficiency. Trays, on the other hand, have a large variety of adjustable parameters and can be especially complex, especially when designed for high liquid rate applications.

    Sulzer Chemtech USA, Inc.
    09/17/2007
  • Removing Liquid From Gas

    Liquid entrainment in a gas stream can be a disturbance in many industrial processes. In natural-gas processing, higher-order hydrocarbons, water or impurities have to be separated from the main methane stream. Upstream of gas compressors, droplets that can damage the impellers, have to be removed. With the recently acquired Knitmesh technology and the strategic alliance with Shell Global Solutions, Sulzer Chemtech can supply a broad portfolio of advanced, tailor-made systems for gas/liquid separation to customers in all industries.

    Sulzer Chemtech USA
    09/17/2007
  • Implementing Foundation fieldbus

    This white paper provides some insight into the process for safely implementing Foundation fieldbus in an area of your facility that has a hazardous classification.

    Moore Hawke Fieldbus
    06/14/2007
  • Rectifier design for fuel ethanol plants reduces energy

    Plants have traditionally used trays in the distillation columns to produce fuels grade ethanol. Trays of various configurations have been adequate in this service and their technology is well founded. The ever-present desire to reduce the energy needed to produce a gallon of ethanol has opened the doors to structured packings being used in the rectification sections of ethanol distillation columns.

    Sulzer Chemtech USA
    04/10/2007
  • Applying ISA-S88 to Software Migration Engineering

    Dow Chemical maintains thousands of batch control systems world-wide built on its proprietary MOD 5 computer system. Over decades, they have been meticulous to preserve and enhance these systems. Dow intends to preserve and reap the rewards of this diligence by developing reverse engineering best practices and tools to migrate this intellectual property to next-generation platforms.

    Dow Chemical
    07/12/2006
  • Managing Complex Equipment Status in a GMP Environment

    Batch manufacturing systems must maintain the status of equipment, including which are available, dirty, out of service, etc. In industries that enforce Good Manufacturing Practices (GMPs), additional status types and values for process equipment must be maintained. Rules associated with the equipment status can be complex and involve the equipment class, current equipment state and time in the current state. This paper covers the operator interface used to review the equipment status and the interlocking requirements between the recipe and batch phases based on multiple status types.

    Honeywell
    06/13/2006
  • Fieldbus and remote I/O system comparison

    Nine manufacturers participated in the FuRIOS study, which was conduced under the lead of an end user company that compared its use of fieldbus and remote I/O in full detail.

    Aventis, Infraserv GmbH
    02/10/2006
  • Process Control Network Security - Reference Architecture

    This document describes best practices for the reference architecture for a process control system network and its interfaces to a corporate network. The paper’s objective is to give the reader an understanding of the techniques utilized to securely connect these networks.

    Invensys
    01/11/2006
  • Accurate liquid phase density on aerated liquids

    This white paper discusses SONAR-based, clamp-on gas volume fraction meters which recently have been introduced to the industry that provide an accurate, real time, measurement of entrained gases. Coupling entrained gas volume fraction monitor with most types of process density meters, enables accurate determination of liquid and the liquid-solid components of aerated mixtures.

    10/18/2005
  • Specifying industrial fieldbus networks for automation

    Automation designers face many challenges and tradeoffs in the development of a successful network solution. This white paper discusses the necessary choices in selecting a network technology appropriate for various specific applications.

    Texas Instruments
    10/12/2005
  • Measurement Best Practices

    This 9-page PDF discusses way in which you can ensure your measurements are accurate, repeatable and reliable.

    Rosemount
    10/05/2005
  • PACs for industrial control: The future of control

    With a number of vendors producing Programmable Automation Controllers that combine the functionality of a PC and reliability of a PLC, PACs today are increasingly being incorporated into control systems. This white paper explores the origins of the PAC, how PACs differ from PLCs and PCs, and the future direction of industrial control with PACs.

    National Instruments
    09/14/2005
  • Technical handbook from Magnetrol

    This technical handbook from Magnetrol gives important conversions, chemical properties, equivalents and pipe data.

    Magnetrol
    04/04/2005
  • How to control a process with long dead time

    A process with a large dead time presents a special challenge for a controller --  any controller. This short paper explains how to get the best control of large dead time processes.

    ExperTune
    01/11/2005
  • Theory and practice of pH measurement

    This 43-page guide covers the basic mechanism of pH measurement, the structure of the sensor and its fundamental limitations, and also provides installation, maintenance and troubleshooting guidance.

    Rosemount Analytical
    01/04/2005
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