Miranda G. S. Yap, Niki S. C. Wong
With a heavy investment in biomedical research— particularly the $330 million to build Biopolis in 2003— Singapore is seeing the fruits of its labor blossom.
The right elbow can keep your system operating at peak performance, reduce maintenance costs, and minimize material attrition and elbow wear. This article describes common elbows and outlines factors to consider when selecting one.
Simon X. Xu
Gamma CAT-scan technology makes possible the collection of much more vital online process information than conventional diagnostic techniques.
AIChE's Equipment Testing Procedures Committee
Here's how to evaluate rotary pumps— gear, lobe, vane and multiple-screw designs— regardless of whether the material being handled is a Newtonian or non-Newtonian fluid.
Chemical engineering salaries continue to move on an upward trend. In 2007, chemical engineers broke the $100K barrier — reporting a median salary of $103,730, up 12.6% from two years ago.
Today's CFD Programs are more powerful and easier to use than ever, thanks to improved mesh-generation strategies, computational methodologies, user interfaces and enhanced graphics capabilities. Cover photo courtesy of Acusim and Intelligent Light.
Emil Abkar, Khashayar Afshar, Jeffrey Scherffius, Henry Z. Kister
Generalized pressure-drop correlation (GPDC) charts have been the standard for predicting packing flood points and pressure drops. This article guides engineers on the correct and incorrect uses of the GPDC interpolation procedure, and updates the...
Richard V. Porcelli, Mitrajit Mukherjee, James Nehlsen
To ensure a practical, efficient and economically viable process, first consider how a successful catalytic reaction system would work, then focus on making a catalyst with the desired characteristics.
Herbert W. Cooper
Chemical engineers will play an important role in the development and deployment of fuel cells. This primer summarizes some of the key technical and economic issues that must be overcome.
William R. Schowalter
Although the effects of globalization have revolutionized corporate behavior, they are only beginning to affect the thinking, and much less the policies, of U.S. research universities. It is something that should be embraced, rather than resisted.
As China undergoes an industrial revolution, its once pristine lands are being choked by pollution from coal-fired plants. Spurred by the upcoming 2008 Olympics in Beijing, China is quickly cleaning the air. And, it has long-term plans to invest...
What are some of the resources available to support industry's implementation of sustainability?
Wei-Shou Hu, Karthik P. Jayapal, Katie F Wlaschin, Wei-Shou Hu and Miranda G. S. Yap
The CHO cell is at its height of technological prominence thanks to its adaptability to various culture conditions and plasticity in the context of genetic alterations. With further research, the application ofCell Culture Strategies based on...
Darlene Schuster, Calvin Cobb, Darlene Schuster, Beth Beloff and Dicksen Tanzil
Unlike other sustainability indices, the AIChE Sustainability Index (SI) accounts for key factors that are fundamental to the chemical process industries.
W. Kent Goddard
This article explains how to use layers of protection analysis (LOPA) to evaluate various process safeguards, determine if safety instrumented functions are required, and establish what safety integrity levels are needed to reduce risks to tolerable...
Most design methods consider a single pipe diameter. Here's how to evaluate multiple-diameter systems and to calculate conservative single-pipe representations.
Nanotechnology— it's a small science with big stakes. Some of the unique properties that make nanoscale materials useful may also pose hazards to humans and the environment. Can the EPA find a way to effectively regulate these tiny high-tech...
Applying the total cost assessment (TCA) methodology, which accounts for intangibles, provides a more complete evaluation of costs and benefits with the risks associated with them.
As businesses strive to improve productivity, process modeling can be a powerful tool. This article explores the role of modeling in enhancing the effectiveness and efficiency of process development and manufacturing.
John F. Murphy, P.E.
Heed these lessons learned from investigations conducted by the Chemical Safety and Hazard Investigation Board to prevent accidents at your site.
Advanced modeling techniques and improved geometric features are helping designers and users of rotor-stator mixers to demystify these complex devices, and get more consistent predictable results.
Gregory M. Hanggi
The key to low injury and incident rates is creating a work environment that encourages employees to always take action to resolve potential problems. Here's how to do that.
Jonathan H. Worstell
The new parameter introduced here will yield more meaningful results when a fixed-bed reactor is scaled up for process development or scaled down for plant support.
John C. Birkmire, P.E.
Proper design, fabrication, assembly and operation of a pressure vessel closure are essential to ensuring product containment, integrity and quality.
Roger Markwald, Vladimir Kasyanov, Vladimir Mironov
Imagine eliminating patient waiting lists for organ transplants. Bioprinting holds the promise of making this happen, but, must research must be done first.
Marty Martin, Baha Korkmaz
By incorporating the batch standards S88 and S95 into the entire product lifecycle, companies can optimize their processes and project management. This enables them to rapidly get their products to market — a critical factor in staying competitive.
Modular design principles are well known, but have found only niche applications in the Chemical industry. This article outlines an innovative methodology, whereby plant and process design may be conducted in parallel using components with pre-...
Michael J. Misovich, Matthew D. Goetz, Andrew J. DeDoes
This method reproduces the vapor pressure predictions of the Soave-Redlich-Kwong and Peng-Robinson equation of state with a simple Antoine equation that uses constants derived from critical properties and the acentric factor.
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