Technical & Practical
Pump Safety: Flirting with Disaster
Be vigilant about parallel pumping conditions that can lead to catastrophic failures During my career, I have seen several massive centrifugal pump failures caused by pump users attempting to operate pumps in parallel without the proper equipment review, procedural review…
Pressure Measurement: Handling Difficult Process Applications
A better understanding of what pressure instruments do and how they work can help improve measurement performance, especially in troublesome applications Effective use of process instrumentation is critical in any chemical manufacturing environment. These instruments are strategically located throughout various…
Measuring Differential Pressure: Mechanical or Electronic?
Users should consider both options when selecting a DP device. Understanding the differences can help make the decision for a given set of process conditions Differential pressure (DP) measurements are used in many branches of the chemical process industries (CPI)…
Technology Profile: MTBE Production from C4 Raffinate-1
This column is based on “MTBE production from Raffinate-1 - Cost Analysis,” a report published by Intratec. It can be found at: www.intratec.us/analysis/mtbe-production-cost. Methyl tertiary-butyl ether (MTBE) is an organic compound used mainly as a fuel additive to enhance octane…
Solid-Liquid Separation: Classification, Design and Testing
Whether to remove solid contaminants from a liquid or separate a solid product from a solvent, solid-liquid (S-L) separation is a common unit operation across the chemical process industries (CPI). This one-page reference provides an overview of S-L separation methods,…
Considering Fugitive Emissions During the Conceptual Design Stage
The ability to reduce fugitive emissions through the use of strategic design modifications not only protects workers and the environment, but reduces losses of valuable process materials The industrialized nations of the world have all placed increased emphasis on the…
Dust Management in Bulk-Material-Handling Operations
Dust management can be divided into three main categories: prevention, containment and suppression. Understanding the key considerations for each can help bulk solids handlers arrive at an optimal dust control solution Dust management is an ongoing issue faced by virtually…
Heat Transfer in Wiped Film Evaporators
Simulations demonstrate the complex, changing properties of materials within the evaporator. Such information can help in both designing and selecting the proper evaporator A wiped film or agitated thin-film evaporator is very effective with difficult-to-handle materials. The evaporator consists essentially…
Carbon Fiber Production from Pitch
This column is based on a report published by Intratec titled “Carbon Fiber Production from Pitch — Cost Analysis.” The report can be found at: www.intratec.us/analysis/carbon-fiber-production-cost. Carbon fibers (CF) are defined as fibers containing at least 90% carbon by weight,…
Sampling for Internal Corrosion
Properly selected and executed sampling techniques are essential for assessing, controlling and mitigating internal corrosion of pipes and other assets in the chemical process industries (CPI). Key data for evaluating an asset or piping system for internal corrosion include the…