Processing & Handling
CSTR Design for Reversible Reactions
Multiple CSTRs (continuous stirred-tank reactors) are advantageous in situations where the reaction is slow; two immiscible liquids are present and require higher agitation rates; or viscous liquids are present that require high agitation rates. Unlike in plugflow reactors, agitation is…
CPI Energized by Battery Funding
Efforts toward large-scale production of lithium-ion (Li-ion)-based car batteries got a big boost in early August, when the Obama Administration announced $2.4 billion in U.S. government investment aimed, in part, at dramatically ramping up the supply chain for advanced batteries…
ISA Show Preview
The Instrument Society of America (ISA) 2009 exhibitor show Expo 2009 will be held October 6–8 at the Reliant Center in Houston. Over 300 exhibitors are expected to display automation-and-control technology products and services. The show is organized into six…
CPVC Piping In Chemical Environments: Evaluating the Safety Record
There are many considerations when choosing piping materials for an industrial system. Historically, when options were more limited, the decision-making process was relatively straightforward. It was a matter of choosing what grade of metal to install. Today, there is a…
An alternative to chlor-alkali
Earlier this year, NSR Technologies (Decatur, Ill.; www.nsr-tech.com) commercialized its patented process for producing potassium hydroxide (45–50 wt.%) and dilute hydrochloric acid via a membrane separations technology. The company’s flagship production facility in Decatur, Ill. is the first commercial application…
A replacement for Cr+6
Aculon, Inc. (San Diego, Calif.; www.aculon.com) has developed a formulation of its proprietary SAMP technology (Self-Assembled Monolayer of Phosphate) that can be used as an alternative to hexavalent chromium used in primers and conversion coatings to increase the adhesion of…
Scaleup for a downer FCC process
In October, Nippon Oil Corp. (Tokyo, Japan;www.eneos.co.jp) will start constructing a high-severity fluidized-catalytic cracking (HS-FCC) unit, the first in the world that can produce large amounts of propylene from heavy fuel oils. The unit, located at Mizushima Refinery (Kurashiki-City), will…
Diamond lubricant cuts friction and increases equipment life
The lifetime of steel bearings can be extended by up to eight times by a new synthetic diamond lubricant, according to its developer, NanoLube, Inc. (Lombard, Ill.; www.diamondlube.com). The lubricant consists of 0.1–4-nm diamond spheres that are dispersed in a…
Cellulose-to-aromatics process simplifies BTX production
A single-step method to convert cellulosic biomass into aromatic compounds offers a simpler and more environmentally friendly route to the petrochemical feedstocks benzene, toluene and xylenes (BTX), according to a Massachusetts bioenergy startup company seeking to scale up the technique.…
Biobased succinic acid pilot effort underway
Pilot-scale production of biobased succinic acid from dextrose has been demonstrated by Myriant Technologies (Quincy, Mass., www.myriant.com). The firm expects commercial production by mid-2010. The succinic-acid process follows Myriant’s successful commercialization with partner Purac (Blair, Neb.; www.purac.com) of a biobased…