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…
This multi-port valve block from the iComLine Series is made of ultra-pure PVDF and features innovative seat-diaphragm technology with PTFE. This combination allows very heavy-duty switching cycles and temperature resistance up to 150°C — features that are not possible with…
These vacuum inlet traps protect pumps across many applications, from laboratory settings to scalable production systems. The inlet vacuum traps feature user-selectable filter elements for removing the corrosive gases and abrasive particles created by processes that use volatile organic compounds…
How big can a fermenter get? And what would the biggest fermenter look like? The answers to these questions depend upon how the requirements of heat transfer, mass transfer (gas-to-liquid), and momentum transfer (mixing) are met. In an earlier article…
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…
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…
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,…
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…
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…
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…