A method of quantifying mixing according to a mixing index is presented. This index can evaluate and predict mixing intensity related to fluid velocities in stirred tanks The stirred tank is one of the most common and versatile pieces of…
A shortage of technical talent and experience is challenging many in the chemical process industries. Steps that can be taken to improve the situation are discussed The changing professional climate and the vexing economic situation among technology-based companies are leading…
Paying closer attention to the air-filtration systems of pneumatic conveying operations can avoid losses in efficiency in compressed-air usage during filter cleaning The inefficient use of compressed air in solids-handling processes, such as pneumatic conveying, can waste a significant amount…
By focusing on ignition sources, such as static discharges, and housekeeping, facilities handling solids can minimize their risk for combustible dust explosions Dust explosions in industrial facilities can cause injuries, destruction of property, and — as history will attest —…
The variety of rotating equipment used in chemical manufacturing creates the need for diverse maintenance methods. Using new techniques can greatly improve the reliability and performance of all types of rotating machines The processes that are required to manufacture chemicals…
The shift from reactive to prescriptive maintenance can be greatly aided by advanced digital tools and the implementation of an effective pilot program To be successful in today’s industrial business environment, companies in the chemical process industries (CPI) must maximize…
Corrosion under insulation (CUI) creates a pervasive and versatile challenge to the integrity of insulated equipment, but non-destructive inspection can help to avoid undesirable CUI surprises Corrosion under insulation (CUI) has been occurring ever since industry started insulating equipment. However,…
Monitoring and analyzing historical corrosion data can provide insights not available from manual inspection and measurement techniques Some petroleum refiners looking for ways to improve profitability have lately turned to buying opportunity crudes from secondary sources. These crudes, while priced…
Pressurized condensate-return systems and flash-steam vent condensers offer opportunities for fuel cost savings in a plant’s steam system. Here’s how to take advantage Pressurized steam-condensate systems can provide plants with a minimum of between 15 and 35% savings in fuel…
Surprising observations regarding flooding in the upper fractionation trays of an atmospheric crude-petroleum distillation column are investigated In industial distillation processes, flooding is an abnormal, but relatively common, process condition in which liquid accumulates in the column. The accumulation may…