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Activated Carbon: Fundamentals and New Applications

Activated carbon sorbents are important tools in water purification and air-pollution control. This article provides information on the fundamentals of this diverse sorbent and on new applications for which it is being employed Global sustainability trends are creating increased demand…

Rupture Discs: Effectively Minimize Leaks and Emissions

When installing rupture discs, there are several mechanical and operational considerations for reducing the likelihood of leaks and fugitive emissions Overpressure relief systems consisting of rupture discs and relief valves are vital for preventing damage and injury within chemical processing…

Proper Sizing and Installation for Steam System Safety Valves

Successful operation of safety valves in steam systems requires careful adherence to established industry standards for installation and design One of the most critical safety devices in a steam system is the safety valve. Figure 1 is an illustration of…

Focus on software for chemical process applications

Upgraded meshing capabilities improves CFD modeling output   Ensuring optimal output from computational fluid dynamics (CFD) software requires reliable, high-fidelity meshes to be created for the complex geometries that are being modeled. The latest version of this company’s CFD mesh-generation…

This software suite integrates analytics and machine learning

Asset Performance Management (APM) is a complete software suite for site, process and equipment-performance management that combines process modeling with realtime big data and machine-learning solutions. The APM suite is designed to increase asset uptime, improve reliability, extend the life…

These ultrafiltration membranes offer extreme hydrophilicity

The PolyCera Hydro (photo) is a new ultrafiltration membrane for drinking water applications where total suspended solids (TSS), turbidity and pathogen removal are of concern. PolyCera Hydro can be used in place of conventional polymeric membranes for drinking-water treatment in…

A reactive silencer keeps these compressors quiet

The sound waves from the discharge side of this company’s Delta Screw compressor can reach 170–190 dB. Therefore, a downstream silencer is obligatory, as with other compressors. In conventional dissipative silencers, the high frequencies of the sound waves lead to…

A new probe for measuring hydrogen peroxide vapor

The HPP272 probe for the measurement of vaporized hydrogen peroxide (photo) can measure not only the hydrogen peroxide content (ppm) of bio-decontamination processes, but also temperature, relative humidity (RH, only water vapor) and relative saturation (RS, whole gas mixture). The…

Self-tuning transducer senses position, displacement or proximity

The new digiVIT digital variable impedance transducer for linear position, displacement and proximity sensing (photo) features a self-tuning bridge that can work with nearly any sensor and any conductive target. The transducer also features simple pushbutton calibration, temperature compensation and…

This gas monitor has a dual-sensor design

The Ultima X5000 gas monitor (photo) is a replacement for this company’s Ultima X device, eliminating the need for specialized setup tools or a separate controller. The Ultima X5000 can be operated from the two touch buttons on its OLED…