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Processing & Handling

Translucent tubing for peristaltic pumps in high-purity operations

APSPG tubing is specially formulated to withstand the repeated compression and release actions of peristaltic pumps and offers consistent performance in pharmaceutical, biopharmaceutical and laboratory uses. Made of platinum-cured, low-volatile-grade silicone material, the finished tubing carries the United States Pharmacopoeia…

New explosion-proof actuator for chemical applications

This company now offers its new SQEx.2 part-turn actuator  — the explosion-proof version of its SQ actuator, which was introduced at the beginning of 2013. In line with qualification requirements for hazardous environments, the SQEx.2 meets the European ATEX and…

Mixing in the spotlight

Pressure to become more flexible and provide shorter cycle times have prompted chemical processors to examine their mixing operations to determine whether there is a way to increase process efficiency via mixing equipment. And, they just might be onto something,…

Perform leak tests without wasting helium

This company has developed helium recovery units that make it possible to recover and recycle the gas used in leak detection. The recovery of used helium is useful for meeting the environmental certification requirements under DIN EN ISO 14001 and…

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Compressible Fluid Flow Calculation Methods

Compressible gas flow with significant variation in density along pipes is commonplace in the chemical processing industries (CPI). In designing these pipes for compressible flow, it is important to calculate the pressure loss or maximum gas-handling capacity for safety and…

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Quick Pipe and Duct Flow Calculations

Would you like to make a quick mental calculation to determine approximate flowrate, velocity, or pipe and duct sizes for many common situations? This article presents two methods for estimating flow characteristics without the aid of charts, tables, calculators or…

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A new low-temperature shift catalyst passes longterm testing

A new water-gas shift catalyst has undergone 1,000 h of successful operation in a demonstration carried out by the New Energy and Industrial Technology Development Organization (NEDO, Kawasaki; www.nedo.go.jp) and Hitachi, Ltd. (Tokyo, both Japan; www.hitachi.com). The tests were performed…

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A sorption-enhanced catalyst improves CO2 methanation

Converting CO2 into methane is a way to mimic the natural carbon cycle and close the energy cycle by producing synthetic hydrocarbons (see, for example, CO2 Utilization, Chem. Eng., July 2013, pp. 16–19). However, the Sabatier reaction (CO2 + 4H2…

New on-line material-selection guide for valves  

A new online Material Selection Guide is available from DeZURIK (Sartell, Minn.; www.dezurik.com). This convenient web application makes it quick and easy to determine which metals or elastomers are suggested as suitable for valves in applications involving specific corrosive media,…

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Advanced battery electrolytes made with low-cost, high-throughput method

A high-throughput method for synthesizing ionic-liquid-containing electrolytes developed by Boulder Ionics Corp. (Arvada, Colo.; www.boulderionics.com) has been refined to enable its use in commercial production. Boulder Ionics had previously piloted the continuous process for producing advanced ionic-liquid (IL) electrolytes at…