Utilizing ‘Tolerance Intervals’ can help to set more realistic specification ranges, especially when only small amounts of data are available Specifications provide a framework by which one can gage whether products have been manufactured successfully. They identify a product’s key…
The physical properties of zeolites make them extremely important in many industrial processes. This one-page reference provides information on the structure and chemistry of zeolites that allows their use in the chemical process industries (CPI). Zeolite structure Zeolites are a…
This column is based on “Prilled Urea from Ammonia via Self-Stripping Process – Cost Analysis,” a report published by Intratec. It can be found at: www.intratec.us/analysis/urea-production-cost. Urea is a nitrogenous compound consisting of a carbonyl group attached to two amine…
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…
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…
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…
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…
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…
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…
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…