Processing & Handling
Piping for Process Plants, Part 4: Codes and Fabrication
Click here for full pdf version of this article - includes all graphs, charts, tables, and author information  This fourth in a series of articles* on piping for process plants examines two topics that may, at first, seem to…
Increase Productivity Through Better Gas-Liquid Mixing
Mixing is one of the oldest unit operations in the chemical process industries (CPI) and can also be one of the most demanding. The complex challenges presented by the wide variety of mixing tasks and scaleup needs encountered…
Nanoholes improve the light absorption of TiO2
The ability of titanium dioxide to absorb ultraviolet A (UVA) and ultraviolet B (UVB) solar radiation has been increased 25% by researchers at the U.S. Dept. of Energy’s Brookhaven National Laboratory (Upton, NY; edlinks.chemengonline.com/6900-534). This could lead to improved…
Bio bulk chemicals
Metabolic Explorer (Metex; Clermont-Ferrand; edlinks.chemengonline.com/6900-535) and IFP (Rueil-Malmaison, both France; edlinks.chemengonline.com/6900-536) signed an agreement last month to accelerate the scaleup of Metex’s proprietary technology for producing 1,3-propanediol (PDO). The biological-based process uses glycerin — a byproduct of biodiesel production (CE,…
A new catalyst ligand promises to cut costs for making chiral compounds
Asahi Kasei Finechem Co. (Osaka, Japan; edlinks.chemengonline.com/6900-538) has commercialized a new type of catalyst for performing asymmetric oxidation reactions. The catalyst is based on ligands having the structure of a chiral-bis-hydroxamic acid (CBHA; diagram), which was first developed by Professor…
Focus on Compressors, Fans & Blowers
Move lots of potentially corrosive gas with this blower Rotron CP regenerative blowers (photo) offer extremely high resistance to corrosion and chemicals encountered in chemical processing applications, such as vent-header offgassing, spot source, biogas or landfill gas,…
Ceramic ferrules
Blasch Precision Ceramics (Albany, N.Y.; edlinks.chemengonline.com/6899-548) has commercialized one-piece hex-head ferrules made of 99.6% alumina for applications in steam-methane reformers. The high-purity alumina is becoming popular as an alternative to high-grade metal alloys because it is virtually immune to chemical…
‘Nanowire’ membranes for use in harsh environments
Technology for producing nanowires from titanium dioxide, and for fabricating the wires into free-standing membranes and other shapes, is being offered for sale by Intellectual Property Partners LLC (IP2; Atlanta, Ga.; edlinks.chemengonline.com/6899-540). The membranes are chemically inert and thermally stable…
Bending polymers imitate the beauty of nature
Researchers from the Hebrew University of Jerusalem’s Racah Institute of Physics (Israel; edlinks.chemengonline.com/6899-539) have succeeded in programming polymer sheets to bend and wrinkle by themselves into prescribed structures, such as domes, saddles and sombrero shapes (photo). Their work, described in…
Outlets for glycerin
Glycerin has over 1,500 known end uses, including applications in cosmetics, pharmaceuticals and food products, with the U.S. market alone demanding around 600-million lb/yr. But over the next two years, biodiesel plants are expected to produce an additional…