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Separation Processes

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Wire Meshes in Filtration

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…

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Better Filtration for the Bottom Line

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…

This horizontal-paddle vacuum dryer has a concentric agitator

Maximum ease of cleaning, maintenance and internal inspection are the qualities that make the CosmoDry System suitable for multi-product applications. The CosmoDry System consists of a horizontal cylindrical chamber, equipped with a concentric agitator, fitted with a heated shaft that…

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Activated Carbon

Sorbent materials are used commercially for bulk separation, as well as purification of both liquids and gases. This one-page reference provides manufacturing and application information on the most widely used industrial sorbent material — activated carbon. Four types of generic…

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New Horizons For Dividing Wall Columns

A dividing wall column (DWC) is an atypical distillation column with an internal, vertical partition wall that effectively accommodates — within one shell — two conventional distillation columns that are connected in series as required when separating a multicomponent feed…

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Mega columns, mega issues

New distillation columns are getting much larger. The history of column sizes, and design and construction issues associated with large columns were recently addressed at the AIChE Spring Meeting (New Orleans, La.; March 30 to April 3) by Dan Summers…

Achieve clear filtrate with these candle filters

The further developed CF Series candle filters are particularly suitable for purifying industrial wastewater with low solids content. They have been specially developed for the filtration of liquids with solid concentration of less than 1% — an area of limited…

A membrane module for large-scale MBR applications

In May, this company officially launched its Bio-Cel XL submerged module for membrane bioreactors (MBRs) at IFAT 2014 in Munich, and already received its first order during the show. This new XL-version of the Bio-Cel has a total membrane area…

Ceiling-mounted units outfitted with dynamic filtration chambers

Purair SKY ceiling-mounted filtration units (photo) provide personnel protection in areas where hazardous substances are handled. Outfitted with a dynamic filtration chamber and a sliding filter clamp that allows for quick filter changes, these units are designed for a wide…

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Fine Tune the Design of Sour-water Strippers Using Rate-based Simulation

Sour-water strippers (SWSs) are common in petroleum refineries, as well as gas-processing and gasification plants, and are used to remove ammonia, hydrogen sulfide and carbon dioxide from contaminated process waters. The design of these units is typically done using the…