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Technical & Practical

Beyond Flowmeter Selection: Consider Some of the Most Overlooked Criteria

The whole-product-lifecycle approach for flowmeters presented here encompasses more than basic selection Typical discussions of flowmeter selection address specifications, technologies, accuracies and performance, but there are many other steps that are not normally considered. This article focuses on these often…

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Specialty Metals

One of the most important factors to consider when evaluating a specialty metal for use in valves, fittings and instrumentation is its corrosion resistance or corrosion rate of the metal in the target media. Each material discussed here has its…

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Designing and Operating Gravity Dryers

Evaporation of moisture or volatile organic compounds (VOCs) from bulk solids usually takes place in two stages: one in which the drying rate is constant, and the second in which the rate decreases over time. Devolatilization during the first stage…

Fire & Gas in Safety Systems

By continuously monitoring for abnormal situations, such as a fire, and combustible or toxic gas releases, fire and gas (F&G) detection and mitigation systems are the linchpins to maintaining overall safety and operation of industrial facilities. The premise of these…

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Engineering Practice: Optimal Cooling Systems For Coastal Plants

Because temperature control is important in any process, a water-cooling system is a common component in chemical processing plants. For facilities located near coastal areas, the tendency is toward the use of seawater instead of river water for cooling purposes.…

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EPC Contractors Selecting an ERP Package

In recent years, a growing number of projects throughout the chemical process industries (CPI) have been carried out using Engineer-Procure-Construct (EPC) contracts. Because such contracts typically involve the work of numerous subcontractor parties, they tend to be complex. As such,…

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Choosing a Control System

Technology Requirements [ 1] Control architecture Does the solution provide an integrated automation platform? New systems should manage process knowledge through a combination of advanced technologies, industrial domain expertise, and Six Sigma methodologies. Choose an open, scalable control system that…

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Hydrogen Pinch Analysis Made Easy (Discussion between a reader and the authors)

I recently read Hydrogen-Pinch Analysis Made Easy Chem. Eng., June 2008, pp. 56–61. The paper presents an automated spreadsheet program to target the minimum fresh hydrogen resource for a hydrogen network. While the effort of the authors is appreciated, I…

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Energy Efficiency in Steam Systems

In today’s typical process plants, preventing steam loss and improving condensate return are key opportunities to make a process more energy efficient. To be the most effective, steam generally needs to be dry (such as for process usage), or superheated…

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Optimizing Pumping Systems

 Interest in energy efficiency is not a fad. The economics of industrial production, the limitations of global energy supply and the realities of environmental conservation will be enduring themes for decades, if not the millennia. As energy costs increase, pump…