I have 70 supervisors. It sometimes feels like I am pulled in 70 different directions — north, south, east, west, up, down and inside-out. But even after two years at this job, I can still hold my hand steady —…
Spray drying has been applied for many years for production of fine powders of high quality for various types of batteries. Over the years, the demand to energy density and performance of batteries from new applications has led to the…
On March 24, at the American Institute of Chemical Engineers’ (AIChE; New York; http://www.aiche.org) Spring Meeting in San Antonio, Tex., the Separations Division honored the myriad contributions of Dr. Karl T. Chuang. Given the scope and impact of his contributions,…
A new approach to the design of the downcomer portion of distillation column trays — presented at the recent American Institute of Chemical Engineers (AIChE) Spring 2010 meeting (San Antonio, Tex.; March 21–25) — promotes a uniform fluid flow pattern,…
I read with great interest your article, Kettle Troubleshooting (February, pp. 26–33). The authors are to be congratulated on a very in-depth and timely presentation on the effects of boiling two-phase flow in kettle type reboilers. For over 45 years,…
Researchers from the Center for Membrane Technology, Beijing University of Technology (China; www.bjut.edu.cn) have developed a new spiral-wound membrane module for use in oxygen-enriched combustion. A pilot-scale system with five membrane modules has been built and tested in a 4-ton,…
Many reactions, extractions, separations and other operations in the chemical process industries (CPI) involve the use of organic solvents. In addition to handling and disposal issues, organic solvents can pose a number of environmental concerns, such as atmospheric and land…
Most members of the highly regulated chemical process industries (CPI) are aware of the growing worldwide attention focused on the issues of climate change, air and water pollution and the supply and protection of natural resources. For this reason, air-pollution-control…
Drying as a process is one of the most energy-intensive unit operations on the planet. Add to that the fact that dryers are used extensively throughout the chemical process industries (CPI) and it becomes obvious that there ought to be…
An understanding of the basic information presented here will help you produce powdered products with desired characteristics, while operating the drying plant safely and with minimum energy This photo shows a spray dryer with a heat recuperator. The plant…