Despite the immense value and universal appeal of these additives for product designers, process engineers facing the day-to-day reality of full-scale production face a unique set of challenges. Dispersing these powdered additives into a liquid is one of the most…
Uhde GmbH (Dortmund, Germany; www.uhde.biz) is developing a new process for producing lactic acid (LA) — a monomer for making the biodegradable plastic polylactic acid (PLA) — that does not require a distillation step. As a result, savings in steam…
Last month, Malibu GmbH & Co, KG (Bielefeld, Germany; www.malibu-solar.de) started up a thin-film photovoltaic-module fabrication facility that is claimed to be the world’s first to eliminate the use of nitrogen trifluoride (NF3) — a greenhouse gas with a significant…
A new zeolite catalyst that increases yields of light cycle oil (LCO) from high molecular weight “bottoms” hydrocarbons in petroleum fluid catalytic cracking (FCC) units was commercialized last month by Grace-Davison, an operating segment of W.R. Grace & Co. (Columbia,…
Researchers at Pacific Northwest National Laboratory (PNNL; Richland, Wash.; www.pln.gov) have published the first direct route for converting plant cellulose to 5-hydroxymethylfurfural (HMF), a valuable platform chemical for the production of both plastics and biofuels. Appearing in the June issue…
One of the most important factors to consider when evaluating a specialty metal for use in valves, fittings and instrumentation is its corrosion resistance or corrosion rate of the metal in the target media. Each material discussed here has its…
With traditional petroleum-derived feedstocks facing relentless economic and environmental pressures, it’s no surprise that stakeholders throughout the chemical process industries (CPI) have been in hot pursuit of alternative routes for producing commodity and specialty chemicals and polymers from cheap, plentiful…
A positive displacement alternative for syringe pumps Cheminert Models M6 and M50 liquid handling pumps (photo) are a new option for precision handling of liquids and gases, producing a bidirectional, pulseless flow with a range of over six orders of…
Figure 1. Style 212-ULE valve stem packing is said to outperform engineered sets, meeting global emission standards Garlock Sealing Technologies Figure 2. The EnDura family of seals was developed to cope with temperature extremes, increasing pressures and higher levels of…
Compressing carbon dioxide captured from power plants to 1,500–2,200 psia for pipeline transmission or underground injection is a challenge that requires eight stages or more, using conventional compressors. A compressor that promises to do the job in two stages, for…