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Operations & Maintenance

Benefiting from Nozzle Flexibility in Piping Design

The inclusion of nozzle flexibility (directional spring rate) in pipe-stress analysis results in more realistic piping reactions on pressure-vessel nozzles, whereby it will be easier to meet the limited nozzle-load capacity of the nozzles. It will surely contribute to a…

Improving PRV Cost of Ownership with Upstream Rupture Discs

The costs associated with installing and maintaining pressure-relief valves (PRVs) can often be reduced by equipping systems with upstream rupture discs Reclosing pressure-relief devices, commonly referred to as pressure relief valves (PRVs), are designed to allow for the release of…

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Modular Construction: Choosing the Optimal Module Type

Plant process modules are not a one-size-fits-all solution. These considerations can help determine the best size for your project With the growing recognition of the advantages of modular construction over traditional field construction [1, 2], it’s no surprise that an…

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A Holistic Approach to Asset Risk Management: Is it All or Nothing?

By combining mechanical integrity and reliability programs into a single framework, plants can streamline their asset maintenance strategies and mitigate all types of risk Asset maintenance first hit the headlines during the late 1980s when it became a target for…

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Innovations in Seals and Gaskets Boost Reliability

New designs and materials overcome high temperatures, pressures and aggressive media In the chemical process industries (CPI), standard equipment is often capable of working universally across many applications. However, this same notion does not apply to the sealing elements used…

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Calibration of Weighing Instruments

A guide to the practical considerations of calibrating weighing instruments is presented here Throughout the chemical process industries (CPI), weighing instruments find a range of important uses and are often a critical piece of equipment for many processes. Monitoring feed…

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Making the Invisible Visible with Electromagnetic Flowmeters

The patented technology to measure buildup can be used to optimize cleaning cycles and avoid unplanned shutdowns To keep operations at peak efficiency, process systems must be kept as clean as possible. However, some of the normal byproducts of operating…

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Corrosion Prevention for Heating and Cooling Systems

Understanding that viable strategies exist to protect essential cooling and heating systems from corrosion is a crucial step in ensuring proper asset protection Several years ago, a manufacturing plant was forced to unexpectedly shut down one of its main production…

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From Waste to Resource: Avoiding Fouling in Ammonia Recovery

As more organizations look to ammonia recovery to take advantage of recent pricing trends, it is increasingly important to consider the impacts of fouling and other process inefficiencies The price of ammonia has increased by 600% from 2020 to 2022…

Recently published books for the CPI: January 2024

The following is a selection of recently published books with potential relevance to various parts of the chemical process industries (CPI).  Process Design for Cryogenics. By Alexander Alekseev, Wiley-VCH Publishing, 2024, 384 pages, $160.00. Handbook of Construction Management for Instrumentation…