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Technology Profile: Production of Caprolactam from Benzene

Caprolactam (Figure 1) is a cyclic amide widely used as a chemical intermediate. The main forms of caprolactam are molten (liquid) and flakes. At ambient temperatures, it is a white, hygroscopic, crystalline solid. Almost all caprolactam is used as monomer…

Can You Trust the Joukowsky Equation for Waterhammer?

The Joukowsky equation is often relied upon to determine the maximum possible fluid pressure inside a pipe, but there are certain scenarios where this equation does not return the expected conservative result for overpressurization We engineers love our formulas. Especially…

Facts At Your Fingertips: Adsorption bonding

Physical adsorption phenomena play a critical role in many separation and purification processes, including separations of industrial gases, purification of gases, moisture removal from fluids, water purification and others. Adsorption is a surface phenomenon in which a fluid (gas or…

Focus on Pipes, Tubes & Fittings

Reduce costs for purging large-diameter pipes Care is necessary when welding large-diameter pipework in stainless, duplex and chrome steels, nickel alloys and zirconium. When welding such reactive materials, they need to be purged of oxygen before, during and after welding,…

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Extraction of plant products with supercritical glycerin

Construction is underway of a prototype system designed to extract natural bioactive product compounds from plants using supercritical glycerin as the extraction solvent. The initial target for the process is to extract cannabidiol (CBD), tetrahydrocannabinol (THC) and other active compounds…

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Embedding active enzymes into plastics

Researchers at the Fraunhofer Institute for Applied Polymer Research (IAP; Potsdam-Golm, Germany; www.iap.fraunhofer.de) have developed a process for embedding active enzymes into plastics. This has been difficult before, since plastics are normally processed at temperatures above 100°C. The technology offers…

This touchscreen monitor is suitable for outdoor usage

The SRMHETRWP-15C (photo) is a rugged, industrial-grade 15-in. sunlight-readable touchscreen. This new model provides many important advantages for use in any automated outdoor system. With super-high visibility and brightness, this model is five to six times brighter than standard screens,…

Use this flowmeter to monitor seal leakage in gas compressors

The ST75 mass flowmeter (photo) provides precision measurement in small lines for the detection of hazardous, non-compliant and costly gas leaks, including the monitoring of seal leakage from gas compressors. It measures air or gases from 0.01 to 559 std.…

This new bag emptier has a body that tilts

The tiltable Dima bag emptier (photo) can improve product intake processes, since less time is needed to clean, inspect or replace parts. The tiltable body enables the Dima to be opened for easy access to areas that are normally difficult…

Improve performance with these filtration inspection packages

This company recently launched three filtration inspection packages (photo) centered around offering improved filter availability, better filter performance and longer equipment life. The packages are designed to quickly identify common wear-and-tear issues, such as problems with the plate packs, leakages…