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…
Solar desalination Researchers at Rice University (Houston, Tex.; www.rice.edu) working on nanophotonics-enabled solar membrane distillation (NESMD) have found that concentrating sunlight on small areas of the desalination membrane leads to a non-linear improvement in performance in vapor pressure, which forces…
This column is based on “Titanium Dioxide Production Process – Cost Analysis,” a report published by Intratec. It can be found at: www.intratec.us/analysis/titanium-dioxide-production-cost. Titanium dioxide (TiO2) is the naturally occurring oxide of titanium, and is found particularly in rutile ores.…
Tumble-growth agglomeration can reduce dust in solids-handling processes. Here’s how it works Handling and processing bulk solids appears in nearly every industrial sector, from energy to agriculture. Dust is a ubiquitous and challenging issue when working with bulk solids, because…
Purity requirements and gas properties require different methods for the purification of industrial gases. Provided here are key considerations for selecting gas purification technology Industrial gases are critical for a wide range of applications throughout the chemical process industries (CPI).…
Five different examples are presented in which specialty mixers are used to perform tasks more efficiently than conventional approaches Specialty mixers serve a vast range of applications throughout the chemical process industries (CPI). The approach to mixer selection invariably starts…
Effective agitation of fluids for blending and motion requires a detailed analysis of capacity, viscosity and dynamic response for the fluid system, in order to find power and shaft speed of the agitator and corresponding sized of the turbine impeller.…
The following list is a selection of recently published books with relevance for the chemical process industries (CPI), July 2019 Guidelines for Investigating Process Safety Incidents, 3rd ed. By the Center for Chemical Process Safety, Wiley/AIChE Publishing, 2019, 408 pages,…
Heterogeneous catalysis in industrial processes involves a complicated set of physical and chemical phenomena that help lead to products. This one-page reference provides information about the formation of products in an industrial process using solid catalyst materials. Catalyst materials…
This column is based on “Epichlorohydrin Production from Propylene – Cost Analysis,” a report published by Intratec. It can be found at: www.intratec.us/analysis/epichlorohydrin-production-cost. Epichlorohydrin, (also known as ECH and chloromethyloxirane), is an organochlorine compound and a highly reactive epoxide that…