Fabricated metal-wire mesh is one of the major categories of filter media. Woven metal cloths are often used to support a filter aid coating or a bed of granular or porous material. Proper selection of wire cloth can have a…
Bulk solids are frequently used as reactants, catalysts or products in chemical process industries (CPI) operations. Often, they must be heated or cooled so that they can be handled safely or processed at a desired temperature. Traditionally, heat transfer to…
Experiments are done to quantify cause-and-effect relationships between adjustable parameters (inputs, factors, x) and the results (outputs, responses, y). They help to answer questions like: How do the ingredients and proportions of a mixture (inputs) influence its properties (outputs)? How…
Numerous strategies and options for both dilute- and dense-phase conveying systems are presented here Pneumatic conveying is a ubiquitous mode of conveying bulk solids in a wide range of industries, including chemicals, plastics, grain, food, agricultural, mining, power and…
Many applications in the chemical process industries (CPI) require filtration — from cleaning the air of dust, to corrosion prevention, to cleaning up incoming process water, to recovering proteins downstream. No matter the application, filtration providers are working to improve…
Hydrogen cyanide (HCN) is a chemical precursor used in the production of several industrially relevant compounds, such as adiponitrile for nylon production, methyl methacrylate for polymer manufacturing, sodium cyanide for gold recovery and for the production of methionine, which is…
What are the steps to finding the best pressure sensor for a particular application? That’s a challenge faced by many a young engineer just out of school. Engineering school teaches a great deal of theory, but what is the best…
Gaskets are relatively simple pieces of equipment in principle, yet are entirely critical in many types of chemical process industries (CPI) applications, including pipes and vessels. An understanding of gasket function, and of the forces and stresses acting on gaskets…
Pressure transmitters are widely used throughout the chemical process industries (CPI). Although pressure in and of itself is an important process parameter, differential pressure (DP) measurements enable the inference of other important parameters as well. This article presents a concise…
Reactive chemicals and intermediates are used extensively in the chemical process industries (CPI). Hazardous chemical reactivity can be defined as “any chemical reaction with the potential to exhibit rates of increase in temperature and/or pressure too high to be absorbed…