Increasingly precise process control strategies, often linked to computer control, have accelerated the use of sophisticated on-line chemical composition analyzers in plant applications. Instruments such as gas and liquid chromatographs, ion chromatographs, laser optic instruments, atomic absorption instruments and specific ion analyzers, which were rarities in laboratories ten years ago, are now found routinely in plant settings.
While continuing miniaturization and “rugged-ization” of the electronics are making the instrumentation circuitry more tolerant of the plant environment, the level of contamination in plant samples compared to laboratory samples continues to plague the process. This white paper reviews the factors in plant operation that may affect the deliverability of acceptable samples and provides guidelines for addressing these factors.
In recent years, TOC analysis has become accepted in the industry as the standard method and the only reliable online method used to determine contamination in waters, to control processes, to prevent product losses and to minimize waste. It is especially important to monitor this parameter in applications such as condensate return water, boiler/feed water, etc. In boiler/feed water and in industrial steam generating systems, carbonic acid corrosion of condensate lines is often a serious problem. Depending on the application type, analysis of only one parameter (e.g., TC) is generally not sufficient to make any useful process decisions. Multiple-parameter analysis (TOC, TC, TIC, VOC etc.), as carried out in the Hach BioTector B3500c analyzer, is proven to be more useful and always superior to single-parameter analysis in the industry.
Bristol-Myers Squibb manually monitored dissolved oxygen (DO) periodically and ran aeration blowers more than necessary to guard against variable loading rates. After upgrading the system to use online DO monitoring operators now have continuous DO readings in the aeration tanks, substantially reducing energy and maintenance costs.
Oxygen measurement for safety and control is essential for process optimization in many chemical manufacturing processes. This white paper provides application details of probe-style TDL oxygen analyzers.
The purpose of installing a flowmeter system is to accurately measure flow in a reliable manner. Issues related to physical properties, process parameters, electronic features and interconnections are often given much consideration. Relatively little emphasis, however, is given as to how well the flowmeter will perform its intended purpose. Adding to the confusion are the differences in how performance is expressed and the incomplete nature of the available information. Nevertheless, the quality of flow measurement should be a concern. This Chemical Processing eHandbook takes a look at technologies and solutions affecting flow including:
* Coriolis meters - steps you can take optimize performance when faced with entrained gas
* Magmeters -- why you should consider using them
* How to achieve effective flow control with centrifugal pumps
Precise process control strategies have accelerated the use of on-line chemical composition analyzers in plant applications. Contaminants in plant samples are the most frequent cause of problems with on-line analyzers. Trace contaminants can rapidly build up and cause instrument failure.
Implementation of rapid loss on drying and ash analyzers significantly reduces testing times associated with traditional methods, allowing companies to bring products to market faster, increasing production. These features will aide biomass material manufacturers in maximizing control of the market.
For years chemicals makers have tracked the health of key equipment yet they still grapple with unplanned outages that can significantly impact financial performance through lost production and extra repair costs. In this Special Report, we'll explore underlying condition monitoring challenges and introduce the concept of condition management -- an enhanced approach that helps companies reap the full benefit from their condition monitoring investments; we'll also discuss how CMMS tools can help to provide a clear understanding of maintenance operations performance as well as provide some guidance on what you can expect from a CMMS vendor. Lastly, listen to the lively discussion between Chemical Processing's Senior Digital Editor,Traci Purdum, and Edgewater Fullscope's Senior Vice President, Russell Smith, as they converse on how ERP can help manage the supply chain.
In this white paper, we review the new possibilities offered by measurement systems based on polarographic technology. Unlike other systems, polarographic sensors are built directly into the process gas stream, eliminating the need for cumbersome gas sampling and conditioning systems. Further, polarographic sensors require very little maintenance.
An exciting trend in the world of CMMS is the increasing sophistication of condition-based maintenance (CBM) features and functions vendors offer and maintenance professionals actually use. This Special Report covers:
* Six steps to condition-based maintenance
* Bolster your condition monitoring toolbox
* Protect your condition-monitoring program from the recession guillotine
* Go beyond condition monitoring
Determining the most economical option to control airborne emissions during chemical process operations presents several unique challenges. As with any add-on control system, the goal is to minimize the annualized total costs while maintaining proper operation. In this white paper, learn the different options that are available and which ones fit your process the best.
Mechanical failure of motors, drives and other vital electromechanical equipment are among the most common reasons for production stoppages. Fortunately, recent advancements in vibration monitoring and data analysis have lead to condition monitoring systems that can accurately detect a problem before failure, thus reducing costly machine shutdowns and maximizing production output. These systems are installed on the monitored equipment and are typically networked back to a central computer for data analysis and alarm annunciation. Because the machines may be in remote locations where network infrastructure is not available, or on moving platforms where hardwired network connectivity is not practical, wireless communications is a networking alternative that offer installation cost savings, quicker deployment and even improved reliability in certain situations.
Jim Ralston, Wireless Sales Engineer, ProSoft Technology
This 26-page white paper from Monitor Technologies discusses the difficulties in measuring bulk solids and powders in bins, silos and hoppers. Download this document to learn which technologies are out there that can make this job easier.