The new Type 3379 Pneumatic Actuator is tailored to the requirements of hygienic applications. All moving parts are contained in a housing with a smooth stainless-steel finish, making it easy to clean. The internal air-routing prevents dirt or water from…
This company has introduced three new amplifier modules for its SomatXR Data Acquisition System. The new amplifier modules are especially suitable for taking measurements under very harsh operating conditions, making SomatXR systems suitable for drive and durability testing of machinery…
The energy-efficient Pro-Flo Shift Air-Distribution System (ADS) is now available in 316 stainless steel and polypropylene plastic (photo) materials of construction, joining the original aluminum and nickel-plated aluminum offerings. The introduction of the stainless-steel and plastic options allows the company’s…
Despite their apparent simplicity, the complexity of these conveying systems demands proper design and an understanding of the underlying principles Screw conveyors play a major role in a wide variety of industrial operations that involve the handling of bulk solids.…
Consolidating multiple flares can help mitigate emissions and maintenance Chris Ng and Zubin Kumana Siemens, Process Safety Consulting Many petroleum-refining and petrochemical facilities have experienced tremendous growth in recent years in response to increasing demand for fuels and chemical precursors.…
Applying dynamic simulation models to tube-rupture scenarios can help ensure more accurate sizing and hazard assessments Tube rupture in heat exchangers is an extremely serious issue in the chemical process industries (CPI; Figure 1). Heat-exchanger tube-rupture scenarios can be evaluated…
Successful dispersion depends on a basic understanding of dispersion equipment and how dispersers should be used High-shear mixers typically operate at high rotational speeds and are used for mixing applications that are best described as dispersion processes. They can be…
With a global nominal capacity of about 140 million ton/yr, ethylene is among the main petrochemicals produced worldwide, and is a key building block for the industry. Ethylene is produced mostly via steam-cracking of petroleum-based feedstocks, such as naphtha. Ethylene…
Dimensionless numbers refer to physical parameters that have no units of measurement. These numbers often appear in calculations used by process engineers. As long as consistent units are used, dimensionless numbers remain the same whether metric or other units are…
Researchers at Toshiba Corp. (Tokyo, Japan; www.toshiba.co.jp) have developed an artificial photosynthesis system that uses solar energy to convert CO2 and water into CO with 1.5% efficiency — the highest efficiency achieved to date. The company believes the technology has…