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Recent Air Regulations: Impact on Turnaround Vapor Deinventory Strategies

With the onset of new environmental regulations, turnaround teams must look to temporary vapor-control strategies to ensure compliance during non-routine operations Turnarounds are one of the most anticipated and time-intensive events in a plant’s cycle, and are an essential part…

Energy Recovery in Compressed Air Systems

Users of compressed air can take advantage of heat recovery to enhance their sustainability, improve energy efficiency and reduce system lifecycle costs Air compressors account for a considerable portion of industrial energy consumption, and facilities that employ large-scale air compression…

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Best Practices in Capital Equipment Commissioning

Ensuring that real-world commissioning tests are properly executed can benefit both equipment end users and suppliers Every capital equipment project comes to a point when operations teams expect payback to begin on the investment. How soon those benefits are realized…

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Commissioning and Startup: Increase Certainty Through Advanced Planning

Taking commissioning and startup into consideration during the early design phase can result in more predictable project schedules and more robust equipment designs Historically, new capital projects and facility upgrades in the chemical process industries (CPI) were designed with a…

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Liquid-Liquid Extraction: Generating Equilibrium Data

Equilibrium data and related information gathered from a liquid-liquid extraction laboratory “shake test” can provide information for process feasibility and column-type selection in the scaleup of liquid-liquid extraction processes Most chemical engineers have had the experience of dealing with problematic…

Treating Boiler Feedwater for Reliable Operation

These key elements of internal boiler feedwater (BFW) treatment will help avoid boiler tube failures due to scale and pitting For many chemical processes, an industrial packaged-type boiler is a critical component for either power generation or for producing steam.…

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Microbial Control in Cooling Water

Three chlorine-based strategies for controlling microbial load in industrial cooling water are evaluated here Industrial cooling-water systems are critical to the success of many chemical process industries (CPI) operations. Proper operation of cooling-water systems supports the financial drivers of energy…

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Effective Agitator Operation and Maintenance

Agitators play key roles in chemical processing. Their proper operation and maintenance can improve process reliability, leading to reduced downtime and costs Agitators, which are relied upon to dependably and cost-effectively meet production goals, are commonly used throughout the chemical…

Maintaining Heat-Transfer-Fluid Quality

Learning what can degrade heat-transfer-fluid quality can help minimize potentially negative effects Organic heat transfer fluids (HTFs) are robust workhorses that are quite stable both thermally and chemically. However, they can yield to attacks from powerful or sometimes even subtle…

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Photochemical Processes in Stirred Tank Reactors

A general overview of industrial photochemistry and the design of large-scale stirred-tank photochemical reactors Photochemical processes complement or may even substitute conventional (thermal) processes. The radiant energy initiates the reaction, for example by forming radicals, and in most cases, no…