Adipic acid is a dicarboxylic acid that is widely applied to the production of nylon, polyurethanes, plasticizers and other polymers. Its main use is as one of the raw materials for the manufacture of the polyamide nylon 6,6. In 2012,…
Larger valves (200 mm and above, with flowrates in excess of 200 m3/h) tend to be fitted with pneumatic actuators. However, the air-output capacity required to achieve fast positioning in larger actuators is simply too high for normal positioners and…
This 110-gallon heavy-duty industrial vacuum (photo) is designed to move material with little wear to the equipment. Engineered to filter contaminants to high-efficiency particulate air (HEPA) requirements, the vacuum is fitted with two filters: a pre-filter to stop larger particles…
This company has simplified transitions to its modular pipework system by introducing adapter flanges, which are available in square or round form. The new adapters are welded onto the machine outlet or inlet ports. Matching counter flanges from the company’s…
Scientists from the A*STAR (Agency for Science, Technology and Research) Institute for Chemical and Engineering Sciences (Singapore; www.a-star.edu.sg) have shown that a copper catalyst can incorporate CO2 into organic molecules under mild conditions, opening the way to an inexpensive, nontoxic…
A nonionic surfactant that is derived from renewable chemicals can outperform common solvents in a range of applications, including industrial cleaning, adhesive removal, degreasing, paint and coating removal, and others. The molecule (N,N-dimethyl-9-decenamide), marketed as Steposol MET-10U, is the first…
The first phase of a study on the feasibility of producing methane from CO2 has been completed by Hitachi Zosen Corp. (Tokyo; www.hitachizosen.co.jp) and Daiki Ataka Engineering Co. (Daiki Ataka) a subsidy of Hitachi Zosen, in collaboration with PTT Exploring…
Last month, a new bioethanol-dehydration process was introduced by its developers Axens (www.axens.net), IFP Energies Nouvelles (IFPEN; both Rueil-Malmaison, France; www.ifpen.fr) and Total Refining & Chemicals (Brussels, Belgium; www.totalrefiningchemicals.com). Tradenamed Atol, the process is said to be the most profitable…
Optimal functioning of centrifugal pumps over time depends on sound maintenance practices. The following material represents tips and guidelines for routine preventive and protective maintenance for centrifugal pumps. Monitoring A basic maintenance routine for centrifugal pumps should include monitoring of…
North American production of crude oil, driven by a rapid increase in output of “tight oil” from U.S. shale deposits like Bakken and Eagle Ford, is surging. In many, but not all areas, petroleum refiners are incorporating an increasing amount…