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-...
Andrew J. DeDoes, Matthew D. Goetz, Michael J. Misovich
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.
Conceived more than seven decades ago, dividing-wall columns are now only gaining widespread acceptance. The reasons— the drive to save energy and advances in computer technology that have overcome the burden of doing complex column internal designs.
Scanning with an optical imaging camera is a faster, cheaper method of finding leaks in a maze of process equipment.
Geoffrey M. Spinks, Gordon G. Wallace
Inherently conducting polymers (ICPs) exhibit a variety of dynamic behaviors that make them an exciting platform for a new generation of bionic devices.
Rapid expansion in biodiesel production has spurred a bumper crop of competing processes to turn byproduct glycerin into propylene glycol.
Gregory T. Benz
This commonly used number does not correctly address the influence of viscosity, and has no relationship to performance parameters such as fluid velocity and blend time. This article recommends actual measures of agitator performance that should be...
Daniel W. Allison, Christoph L. Bausch, Trissa Borgschulte, Matthew V. Caple, Kevin J. Kayser
Demand for therapeutic recombinant proteins will eventually exceed current production capabilities. This is a major driver in further understanding Chinese Hamster Ovary (CHO) cell biology, which is the cell line of choice for producing these...
Wes Bussman, Jianhui Hong, Charles E. Baukal Jr., Richard T. Waibel
High carbon monoxide emissions from a furnace while its temperature is being ramped up can exceed permit limits if appropriate measures are not taken. Here are a few suggestions.
John C. Bonacci
A catalyst guard bed is a simple, low-cost modification that reduces catalyst-replacement costs, saves natural gas and cuts energy expenses.
Allan H. Harvey, Francis L. Smith
Here is practical guidance on the use of Henry's law in engineering calculations and how to account for the temperature dependence of the Henry's constant— which is often ignored but which can be crucial for accurate process design.
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