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Airset regulators for On/Off Valve Applications

Airset regulators are seemingly simple devices, but care must be taken to ensure the right devices are specified, particularly in safety instrumented systems Chemical plants and other heavy industrial facilities typically contain many pneumatically controlled valves, actuators and instruments. Airset…

Rapid Maintenance Response: When Plants Can’t Wait

Even with advanced predictive technologies, unplanned equipment failures can still occur. In these instances, as shown in this boiler example, rapid maintenance action is crucial to minimize downtime Maintenance activities generally fall into two categories — reactive and preventative. The…

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A Holistic Approach for Pump-System Analytics

A step-by-step approach is presented to address the modern requirements of a pump-system digital solution In recent years, significant developments have been achieved in the fields of cloud computing and machine learning techniques. In conjunction with increased awareness regarding the…

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Designing an Integrated Wastewater-Treatment System

Meeting the wastewater-treatment demands of an integrated manufacturing complex demands a design that can address a diverse array of contaminants and discharge requirements Any large, integrated chemical-manufacturing complex will require the implementation of a comprehensive wastewater-treatment solution to address unique…

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Mechanical Pressure Gages in the CPI

In today’s digital age, there is still a need for mechanical pressure measuring instruments for safety, efficiency and economical advantages. Selecting the right type is described here Whether at work or at home, more and more areas of life are,…

Pressure Instruments: Avoiding the Harmful Effects of Hydrogen

Under the right conditions, the smallest atom can attack and disable sophisticated instrumentation. Understanding how this happens can help users avoid problems Engineers of a certain age may remember the childhood disappointment of a helium-filled balloon going flat overnight. This…

Seal Considerations to Reduce Fugitive Emissions

By understanding the basics of industry standards, such as API 682, plants can make great strides in controlling fugitive emissions related to equipment seals Chemicals that unintentionally leak from equipment into the atmosphere are known as fugitive emissions. These gases…

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Modular Process Design: Chemical and Thermal Recycling of Acids

In order to recycle spent acids from different applications, a design approach based on different process modules gives operators the flexibility needed to handle different contaminants Spent or waste acids (SA) containing sulfuric or nitric acid are a byproduct of…

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Acid Recovery and Recycle Technologies

This overview of a number of different methods for handling spent acids will help operators select the technology most suited for a given application The most common pickling, leaching and passivation acids are the mineral acids: sulfuric, hydrochloric and nitric.…

Steam Quality Considerations

Steam often provides the majority of heat, but its quality is not always carefully managed. Here are some tips on how to improve and maintain steam quality Plant operations focus on production activity, maintaining tight control on process algorithms, feedstocks…