Bag filters for industrial applications have been in existence longer and are considered by some to be easier and simpler to specify than cartridges for a filtration project. And although cartridge filtration is now one of the mostly widely used…
A team from the School of Chemical Sciences and Engineering, at the University of New South Wales (Sydney, Australia; www.unsw.edu.au), has developed a process for the micronization of insulin called Arise (Atomized Rapid Injection for Solvent Extraction). According to BioParticle…
Successful adsorber design requires information about certain adsorbent properties, including: adsorbent densities and void fractions; isotherms or other equilibrium data; and data on mass-transfer kinetics and fixed-bed dynamics. Here, these adsorbent properties are explained, along with corresponding equations. Densities and…
Advanced Membrane Technologies and Applications Edited by Norman N. Li. Wiley. 111 River St., Hoboken, NJ 07030. Web: wiley.com. 2008. 994 pages. $150.00. Reviewed by Peter S. Cartwright, Cartwright Consulting Co., Minneapolis, Minn. The crossflow-pressure-driven membrane separation technologies of microfiltration,…
The Electric Power Research Institute (EPRI, Palo Alto, Calif.; www.epri.com) has signed an agreement with Air Products (Allentown, Penn.; www.airproducts.com) to support the company’s development of a ceramic ion transport membrane (ITM) for air separation. The membrane is being tested…
“When you improve the efficiency or capacity of a product, it almost always can be used to improve the process economics with respect to investment costs or operating costs,” says Mark Pilling, manager of technology with Sulzer Chemtech (Tulsa, Okla.).…
A new correlation that matches most commercial trays The sieve tray has been in the distillation market place for many decades. It has been used extensively in distillation columns worldwide as a highly efficient vapor-liquid-contacting device. Many people have examined…
With the exception of Oslo-type crystallizers, the main commercial crystallizers are agitated systems that use an agitator [agitated tank or draft-tube baffle (DTB)] or a circulation pump [forced circulation (FC) crystallizers]. In such systems, however, large crystals become damaged by…
Aqueous Recovery Resources, Inc. (ARR; Bedford Hill, NY; www.suparator.com), has developed the Suparator, an oil/water separation system that involves no moving parts or media, for low operational costs and minimal maintenance. The separator (diagram) is based on the Bernoulli effect,…
Membrane polymers are packaged into a configuration, commonly called a device or an element. The most-common element configurations (figure) are tubular, capillary fiber, spiral wound, and plate and frame. Tubular Made from ceramic, carbon, stainless steel or a number…