This methodology facilitates multifactor testing. However, it comes at a price: a loss in power for detecting effects The traditional approach to experimentation — often referred to as the “scientific method” — requires changing only one factor at a time…
Circular fluidized-bed dryers can boost the capacity, energy efficiency and product quality when used in conjunction with other primary dryers Two-stage drying provides benefits from the standpoints of cost, energy savings, efficiency and product quality. This is especially the case…
Follow these recommendations to select the right centrifuge for your application Many chemical process operations require the separation of multiple phases. This can be done in a number of ways, including simple gravity separation, traditional or crossflow membrane filtration and…
Ongoing advances in both adsorbent materials and system engineering allow today’s pressure swing adsorption (PSA) systems to produce nitrogen of varying purities and volumes at relatively low cost compared to cryogenic air separation Nitrogen production that is carried out using…
A major part of field work lies in troubleshooting problems: finding out why a system is not operating the way it is intended. This article provides guidelines for effective troubleshooting and contains many practical examples of their successful use Effective…
When vortex formation limits outflow from a tank, consider a disc-type vortex breaker Chemical engineers have long said that, while it is easy to get liquid into a tank, it can be difficult to get liquid out. Large line sizes…
Two methods are presented and compared for quickly calculating this important, yet neglected parameter Over the last few decades, a considerable effort has been directed to toward the evaluation of thermophysical and transport properties of air for a wide range…
Transportation is vital to the CPI, so here are some tips to keep your products moving as the market for hazardous-materials shipping continues to tighten All shippers strive to keep costs under control while simultaneously running smooth, efficient and time-sensitive…
The case examples presented here show that proper planning, communication and execution of tasks can add value and reduce unintended negative consequences for many capital-intensive projects Materials management means something different to different groups of people. For the engineering and…
A real-life example is provided to show how to stay on program and within budget Over the past few years, much has been written in the trade press about how to manage large, $1- billion-plus plant-construction and expansion projects in…