Technical & Practical
Facts at your Fingertips: Valves
Gate Gate valves are designed to operate fully open or fully closed; When fully opened, there is very little pressure drop across the valve, and when fully closed there is good sealing against pressure. With the proper mating of a…
Engineering Practice: A Lessons-Learned Knowledge Management System for Engineers
An organizational lessons-learned system facilitates the transfer of knowledge from one project team to another Lessons learned is a method of collecting the unique and important knowledge gleaned from experience. While most engineers have heard of this often cited, even…
Engineering Practice: Predicting Physical Properties of Hydrocarbon Compounds
The continuing growth in the importance of chemical processing, including oil-and-gas processing, increases the need to understand prediction methods for chemical properties and chatacteristics and the impact that these properties have on unit operations, process simulation and design. A variety…
Cover Story: Making Energy Efficiency Pay
As fuel prices continue to rise, energy management is everyone’s business Market trends suggest that the demand for energy resources will rise dramatically over the next 25 years with the global demand for all energy sources forecast to grow by…
Facts at your Fingertips: Vacuum Pumps
Vacuum is any system of reduced pressure, relative to local (typically atmospheric) pressure. Achieved with a pump, vacuum systems are commonly used to: Remove excess air and its constituents Remove excess reactants or unwanted byproducts Reduce the boiling point Dry…
Cover Story Part 1: Level Measurement Technologies For the CPI
Plant performance and safety are key issues for the chemical process industries (CPI) and level measurement plays a crucial role in both. Level measurement helps maintain material inventory at economic quantities, improves product quality and ensures a smooth continuous…
Cover Story Part 2: Liquid-Level Measurement Options In the CPI
Many types of industrial processes utilize liquid level sensors to provide the information needed to monitor and control a process. This enables the design parameters to be maintained in order to produce the end product at the desired level of…
Feature Report: Incorporate Floating Solids Into Liquids
The incorporation of floating solids into liquids is a common challenge throughout the chemical process industries (CPI) in operations ranging from polymerization reactions to fermentation processes and water treatment. Yet, it has received much less attention in comparison to processes…
Closed Liquid Dispensing: Secure Container Contents While Reducing Risk
With the increasing demand for security, drums and other liquid vessels that contain valuable or hazardous liquids can be retrofitted with a simple dispensing-valve system that virtually eliminates leakage and ensures product integrity Although the storage, security, handling and dispensing…
Finding the Right Gloves To Fit the Application
Workers in the chemical process industries (CPI) would certainly benefit from the "perfect" glove that would be thick enough for thermal insulation, thin enough to promote dexterity and tough enough to protect workers from cuts and abrasion. The glove would…