Quest for more reliable readings prompts development of tougher and more-intelligent sensors. While pH control often plays a crucial role in processing, achieving reliable readings remains challenging at many sites. After all, pH sensors frequently serve in aggressive chemical environments.
The New Sampling/Sensor Initiative or NeSSI that replaces tubing, fittings and other hardware in a sampling system with miniature modular components makes sense. Enhancements now in the works should assure its success.
Handling slurries (a mix of solids and liquids), should be based on experience and experiments, not theory. Much of the knowledge obtained from pneumatic conveyors and fluidization systems can be used in understanding slurries.
The traditional approach to experimentation, often referred to as the scientific method, requires changing only one factor at a time (OFAT), but this method only allows one to see things one dimension at a time. By varying factors only at two levels each, but simultaneously rather than one at a time, experimenters can uncover important interactions.
Mark J. Anderson and Patrick J. Whitcomb, Stat-Ease
Guidance for chemical manufacturers, processors, and distributors about Section 8(e) of the Toxic Substances control act was issued on September 14, by the U.S. Environmental Protection Agency (EPA). Chemical Processing's Regulatory Editor Lynn Bergeson discusses the new regulation.
Despite having a parliament that regularly shuttles itself, lock, stock and ballot box, for four days each month between Brussels, Belgium, and Strasbourg, France, the European Union (EU) still manages to put out an amazing amount of legislation.
End-of-life and other product stewardship initiatives will impact chemical plants. An agreement to lessen the environmental impact of chemicals production will have global ramifications. Meanwhile, European end-of-life directives on electrical and electronic equipment already are having a worldwide effect.
Some U.S. oil refineries repair their centrifugal pumps every three years while other refineries enjoy an average repair interval of 10 years. Learn about the highest-performing refineries and other petrochemical companies that have significantly reduced pump failures, and how you can obtain the same results.
Things are changing at warp speed. Manufacturing companies are collecting large volumes of data from data systems but improvements are possible only if the data are analyzed and developed into useful business parameters.
Designing equipment for solids is not an exact science. The flows of gases and liquids are generally better understood than those of solids. Most production problems arise from flaws in the design. This article presents questions you can ask yourself to ensure reliable flow in your silo.
Joseph Marinelli, Solids Handling Technologies, Inc.