To withstand the harsh conditions and potential safety risks encountered in urea agricultural applications and other severe-service processes, special consideration must be given to valve construction, performance and installation Severe-service valves (SSVs) are specially designed and manufactured for critical applications…
Industrial evaporator heat-transfer surfaces are either tubular or flat plates, packaged into a variety of evaporator types, as outlined here. Batch evaporators Batch evaporators are vessels with a heating jacket or internal coil, an overhead condenser, a condensate receiver, and…
Polylactic acid (PLA, polylactide; Figure 1) is a thermoplastic aliphatic polyester that is derived from a number of renewable starting materials, such as starch and sugarcane, via bacterial fermentation. PLA is semicrystalline or amorphous, rigid, resilient and an ultraviolet-light-resistant material,…
New developments in augmented reality can help plant operators fix critical issues while limiting the number of outside visitors entering the facility Reducing risk is an important goal for any plant or petroleum refinery to maintain the health and safety…
A look at how advanced analytics facilitates and improves process safety efforts within the chemical process industries (CPI) Simply by the nature of some of the chemicals used and the associated complex processes involved, chemical plants can be hazardous. With…
To maximize the service life and reliability of rotary dryers for solid materials, adhere to this set of practices Rotary dryers have a well-deserved reputation for reliability, often providing decades of trouble-free operation in solids-handling processes. As with any type…
Catalyst-impregnated ceramic filter elements can achieve simultaneous removal of multiple air-pollutant species in a modular, space-saving layout The three most common pollutants found in the air we breathe are particulate matter (PM), nitrogen oxides (NOx) and sulfur oxides (SOx). These…
Careful attention to even the smallest details will help to prevent operational problems in filtration processes Filtration operations are widely used to achieve effective solid-liquid separations in the chemical process industries (CPI). Industrial filtration installations can involve a variety of…
Any corrosion process in which microorganisms initiate, facilitate or accelerate corrosive chemical reactions is termed microbially influenced corrosion (MIC). MIC occurs when the chemical, microbiological and physical conditions allow the active growth of biofilms containing specific types of microbes on…
This column is based on “Polyvinyl Chloride Production from VCM (Suspension Polymerization) – Cost Analysis,” a report published by Intratec. It can be found at: www.intratec.us/analysis/polyvinyl-chloride-production-cost. Polyvinyl chloride (PVC) is the third most commonly produced synthetic polymer, after polyethylene and…