Many applications require accurate flowrate measurement for air or other gases. Installation requirements, calibration and maintenance are among the factors that must be considered when selecting a flow-measurement technology The measurement of air and other gases in manufacturing plants in…
A general overview of industrial photochemistry and the design of large-scale stirred-tank photochemical reactors Photochemical processes complement or may even substitute conventional (thermal) processes. The radiant energy initiates the reaction, for example by forming radicals, and in most cases, no…
This column is based on the report “Sodium Lauryl Ether Sulfate Production – Cost Analysis,” published by Intratec. It can be found at the following URL: www.intratec.us/analysis/sles-e11a. Sodium lauryl ether sulfate (also known as SLES and sodium laureth sulfate) is…
Producing a perfect batch is easy for some products but harder for others. Using analytics to dig into production data can help operators identify where variability might be creeping into a process For many batch manufacturers in the chemical process…
The ability to achieve an optimal steam balance can help to improve the overall thermal cycle efficiency of any steam-production system In any chemical process plant that produces steam, carrying out a steam balance is the most efficient way to…
Fluid seals for chemical process equipment are commonly made from a host of elastomeric and plastic materials. Selecting a seal material requires careful consideration of several criteria. Presented here are short descriptions of the major criteria for seal selection and…
Understanding boiler performance calculations can allow engineers to improve the operation of their facility’s steam system and better engage with boiler-system vendors Chemical plants, petroleum refineries, power plants and cogeneration systems use oil-and-gas-fired steam generators, fluid heaters and waste-heat boilers…
Pneumatic conveying is a ubiquitous mode of conveying bulk solids in a wide range of industries, including chemicals, plastics, grain, food, agriculture, mining, power generation and cement, among others. The flow patterns within conveying lines depend on the properties of…
This column is based on “Propylene Oxide from Propylene and Chlorine – Cost Analysis,” a report published by Intratec. It can be found at: www.intratec.us/analysis/propylene-oxide-e11a. Propylene oxide (PO) is a highly reactive commodity compound that serves as a starting material…
The activated sludge process (ASP) is designed to speed up the rate of decomposition of waste material in water. First developed in 1914, it remains an important means of treating both municipal and industrial wastewaters. This one-page reference provides information…