Technical & Practical
Harnessing the Power of a Cyclone
Due to their simplicity of construction, lack of moving parts, ability to operate at a wide range of temperatures and pressures, low capital and operating cost, cyclones have been the workhorse for gas-solid separation in a wide variety of industries.…
Pressure measurement considerations
Pressure measurement in the chemical process industries (CPI) is crucial to many unit operations, and selecting the most effective pressure sensors for a given situation can be complicated by a range of factors. An initial key to selection is establishing…
Low cost bidding
Raise your hand if you ever regretted going with the low cost bidder. Keep your hand raised if the low cost bidder ever yielded you the highest cost result. If your officemate is staring at you quizzically, pretend to be…
Burner Design for Fuel Flexibility and Efficiency
Combustion provides heat for many industrial processes and accounts for over 80% of the power used by turbines to generate electricity. Over the past several decades, regulatory action and concerns over environmental air pollutants, such as oxides of nitrogen (NOx),…
Non-ideal Gas Calculations Using Analytical Residuals
Many operations involving ideal gases are readily calculated using a basic knowledge of thermodynamics. Non-ideal gas behavior, however, can deviate significantly from that of ideal gases, and in some cases, large errors can be introduced in process calculations if a…
Eliminating Potential Process Hazards
Originally published in the April 1, 1985 issue, this 21 page article contains timeless recommendations for ensuring plant safety. This article is available in pdf form only. Please click on the pdf tab at the top of the article to…
Tips for Selecting Highly Efficient Cyclones
[Originally published in the May 1995 issue of Chemical Engineering] Cyclone dust collectors have been used - and misused - all over the world for more than 100 years. One reason for the misuse is a common perception among users…
Time for action: Support has ended for Windows 2000 in industrial automation
All good things come to an end. And so it is with Microsoft extended support and security updates for Windows 2000,which ended in July 2010. Any manufacturer with industrial applications that are based on Windows 2000 may wisely be considering…
‘I do not believe in entrainment’
It was the Dr. James R. Fair Heritage Distillation Symposium at the Chicago AIChE meeting last month. I had decided to finally give a presentation about something that has been bugging me since October 28, 1974, my first day as…
PEMS: The Low-Cost Alternative To Emissions Monitoring
Regulatory authorities around the world require continuous emissions monitoring of certain pollutants from large combustion sources. There are two main technologies for monitoring these emissions on a continuous basis — the more traditional one relies on sampling and analyzing exhaust…