Archives :: Processing & Handling :: Separation (Liquid-Liquid & Gas-Liquid)

Displaying 61 - 80 of 291 stories.
February 1, 2012
The GFD (glass filter dryer) FilterBox containment system is a small-scale solution to this company’s larger FilterBox products. The FilterBox consists of an agitated nutsche filter dryer (ANFD) or GFD completely integrated within a PSL...
February 1, 2012
Limited budgets and the need for high performing operations are causing chemical processors and petroleum and gas refiners to seek out the best bang for their capital dollar. And when it comes to gas processing operations, such as carbon-dioxide removal, hydrogen purification and air separation, experts say today’s membrane technologies compare favorably to other available systems and will continue...
January 1, 2012
At the Chicago AIChE meeting last spring, Henry Kister and Mike Pritchett named the distillation symposium in honor of James R. Fair, who had recently passed away. Fair was probably best known for his leadership of the Separations Research Program (SRP) of the University of Texas at Austin. Fair and Jimmy Humphrey founded SRP in 1984, and a significant part of Fair’s legacy is continued through the...
December 1, 2011
The TraceGold gas-chromatography (GC) column is equipped with SafeGuard, a system which combines an analytical GC column with a built-in guard column. GC columns are routinely cut to remove contaminant...
December 1, 2011
Amended Silicates is the name of powder designed for removing mercury from the fluegas of coal-fired power plants. The reagent, which is fully compatible with most...
December 1, 2011
This weighing and feeding specialist has extended its range of equipment with the introduction of the MCF filter system, which is suitable for applications in the animal feed, processed foods...
November 1, 2011
One of the biggest issues related to dust collection is compliance with U.S. Occupational Safety Health Administration (OSHA) and U.S. Environmental Protection Agency (EPA) regulations regarding combustible dusts and air quality. And as both agencies up the ante with tighter regulations and more scrutinizing inspections, it is imperative that processors make sure their facilities are meeting the standards...
November 1, 2011
The Tri-Flow MERV 16 (minimum efficiency reporting value) filter lifetimes are three to five times longer than that of conventional bag or...
November 1, 2011
This company’s candle-filter technology can be used for removing catalyst and other fines from liquids. The filter systems, which can include candle filters, carbon absorption and polishing filters...
November 1, 2011
The Double Back Wash Filter enhances productivity by making maintenance easier and prolonging the availability of the company’s Larox CC...
October 1, 2011
Thermosiphon reboilers are the new standard in petroleum refineries and chemical plants. Nevertheless, approximately 50% of the world’s reboilers are kettles. In the realm of heat transfer, kettle reboilers have not been understood well. Last month, at ChemInnovations, however, Pete Parker, FRI’s president and my supervisor, cracked the knowledge barrier with insight from nothing other than...
October 1, 2011
Equilibrium stage simulations are the nearly universal process design tool for mass transfer columns that contact vapor and liquid in countercurrent flow. Whether the service is absorption, stripping, distillation, fractionation, quench or evaporation, equilibrium stage models make mass and heat balances easy. They quickly estimate stream conditions and physical properties. They are easily altered, so a...
October 1, 2011
  There are various reasons that make filtering necessary in processes. The raw materials might have impurities that require removal at the start of the process. After the initial mixing to produce the process slurry, the mother liquor could have solids that need a separation process. Unwanted solids could also form by a chemical reaction during the production of the process liquid. The nature of the...
October 1, 2011
The new depth filter medium, BecoPad recovers precious metal catalysts from reaction products without losses, so they can be returned to the process. Because very fine catalyst...
October 1, 2011
The latest version of this company’s Puron membrane bioreactor (MBR) filtration modules allows a possible 25% increase in capacity over the previous version. The Puron...
September 1, 2011
I was having a “wallflower moment” after Ms. Ruth Sands’ excellent troubleshooting presentation at the March AIChE meeting. That presentation was well summarized by Editor in Chief, Rebekkah Marshall in the April issue of CE (p. 5). I wanted to tell Ms. Sands, and the other meeting attendees, about my solvents column troubleshoot. Here’s the story: On this particular troubleshoot...
September 1, 2011
Condensate pots are commonly used on the condensing sides of some reboilers, such as those that are heated by steam or refrigerant vapor. These pots provide a liquid seal that prevents uncondensed vapor from blowing out of the reboiler into the condensate system. A break in this seal can result in heat transfer losses. With steam reboilers, blowing vapor into the condensate header may also lead to...
September 1, 2011
Among the challenges of effective solid-liquid filtration is the accumulation of solids on the filter surface, which creates an increasingly dense mass that process fluid must push through. In many applications in the chemical process industries (CPI), a step-down filtration approach has the potential to avoid this difficulty, and at the same time, to cut operating costs and improve solution clarity. Even...
September 1, 2011
Good agitated Nutsche filter dryer performance relies heavily on the agitator design. The design of this companys agitator has a series of sharp curved blades with spaces at...
August 1, 2011
The new ZCore depth cartridge filter is said to offer improved performance, less downtime and reduced operating costs. The ZCore is especially suited for extreme applications where traditional cartridge...
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