Predicting powder flow behavior is important to successful solids-handling processes. Provided here is a review of shear-cell testing and how the technique can be used to predict arching, ratholing and other behaviors The phrases “failure to discharge” and “erratic flow…
Non-representative sampling in solids processes has costly consequences. A better understanding of the mathematical basis for sampling and of acceptable quality levels can help to alleviate potential sampling issues and more closely approximate reality Effective sampling in solids-handling processes is…
Predictive maintenance for rotating machinery is gaining prominence as plant operators embrace analytics and learn how to approach their operating benchmarks Rotating machines, such as motors, compressors, pumps and turbines, are critically important components of plant operations, and must perform…
With the proper knowledge, engineers can work alongside compressor manufacturers to ensure that an optimal air compression system is installed There are various factors to consider when designing a compressed air system that help to improve the reliability and efficiency…
The concept of tray stability can apply to bubble caps and be used as an alternative method to determine the minimum efficient capacity of these devices. A new stability correlation for bubble-cap trays is proposed and checked against FRI data…
A practical look at the need for validation, as well as conceptual considerations and a case study This article addresses the need for experimental validation of computer-generated distillation column simulations , and discusses the main concepts involved with experimental validation.…
Experts share their best practices in process commercialization Every day, scientists and engineers in the chemical process industries (CPI) work on innovative ideas, seeking the ones that can be turned into successful commercial products and processes. Many factors help determine…
Deciding whether to put a project on the fast track entails risks. Some observations are presented here to help minimize risks and maximize profits Time is money!” my mother used to tell me, whenever she caught me reading comic books…
The Process Synthesis Model presented here is a methodology that integrates technology and economics, thereby improving process design and reducing costs Broadly, the chemical process industries (CPI) are comprised of companies in the chemical, petroleum refining, pharmaceutical, household and personal-care…
This overview presents the traditional and emerging types of continuous crystallizers Crystallization is an important technique for the purification of solids in the chemical process industries (CPI). The operation can be performed batchwise or in continuous operation, and is used…