Methods for controlling reboilers in distillation towers are central to good reboiler operation and tower stability. Control valves can be located in the steam-inlet line or in the condensate-outlet line. This article updates guidance for key considerations and practices using…
This column is based on “Isopropyl Alcohol Production from Acetone – Cost Analysis,” a report published by Intratec. It can be found at: www.intratec.us/analysis/isopropyl-alcohol-production-cost. Isopropyl alcohol (also known as isopropanol or 2-propanol) is a colorless and flammable liquid with a…
The following recently published books may be of interest to chemical process industries (CPI) professionals: Smart Manufacturing: Applications and Case Studies. Edited by Masoud Soroush, Michael Baldea and Thomas Edgar, Elsevier Press, 2020, 525 pages, $200.00. Analytical Design of PID…
The preliminary value for the CE Plant Cost Index (CEPCI) for April 2020 (the most recent available) decreased compared to the previous month’s value, with the values of all four major subindices (Equipment; Construction Labor; Buildings; and Engineering & Supervision)…
Clariant Catalysts (Munich, Germany; www.clariant.com) is expanding its high-throughput R&D center in Palo Alto, Calif. Thanks to a significant investment, the upgraded facility is fitted with the latest high-throughput equipment, and will be home to an expanded team of technical…
When plants are built with excessive design margins, problems can arise when operating under turndown conditions. This article helps explain how overdesign tends to occur and how to avoid problems when operating at turndown Operating under turndown can be problematic,…
The following is a list of recently published books selected because of their relevance to the chemical process industries (CPI) Simultaneous Mass Transfer and Chemical Reactions in Engineering Science: Solution Methods and Chemical Engineering Applications. By Bertram Chan, Elsevier Press,…
The preliminary value for the CE Plant Cost Index (CEPCI) for December 2019 (the most recent available) decreased from the previous month’s value, the ninth decline in the last eleven months. Of the four major subindices comprising the overall CEPCI,…
Towell Engineering Group (Muscat, Oman; www.towellengineering.com) and GF Biochemicals (Geleen, the Netherlands; www.gfbiochemicals.com) announced the formation of a joint venture (JV) for the production and marketing of biochemicals using GF Biochemicals proprietary technology.The aim of the JV, NXTLEVVEL Biochem (Geleen,…
Water-treatment programs for cooling towers have evolved in recent years, favoring non-phosphorus programs today. This article reviews the impact on water chemistry and operating reliability Cooling towers are a critical component of many industrial facilities. Cooling towers evaporate only pure…