Follow the guidance provided here to avoid many of the problems that can arise during the relocation of laboratory facilities The decision to move a laboratory from an existing space to a new research facility is often warranted. A merger…
This column is based the report “LDPE via High-Pressure Tubular Process – Cost Analysis,” published by Intratec. It can be found at the following URL: www.intratec.us/analysis/ldpe-production-cost. Polyethylene (PE) is the world’s largest-volume commodity polymer, due in large part to the…
Corrosion is an obvious factor to consider when selecting materials of construction for process equipment. However, the chemical environment of the process is only the starting point in selecting an acceptable material. A set of other factors can complicate corrosion-resistance…
Changes in the availability of source data for the CE Plant Cost Index periodically necessitate updates to how the index is calculated The Chemical Engineering Plant Cost Index (CEPCI) is a widely used tool for comparing plant construction costs in…
There are many factors to consider when selecting a flare system for CPI sites that can impact safety, operating costs and environmental performance Flaring has long proven to be an effective technology for disposing of gases that cannot be used…
A clean-in-place (CIP) system is among the largest users of consumables at a hygienic processing plant. Presented here are tips for reducing the consumption of water, chemicals and time in CIP operations In many industries there is a burgeoning awareness…
This column is based on “Isopropyl Alcohol Production from RG Propylene – Cost Analysis,” a report published by Intratec. It can be found at: www.intratec.us/analysis/isopropyl-alcohol-production-cost. Isopropanol (isopropyl alcohol) is among the most commonly produced lower alcohols — ranked third in…
Areas of recent activity for pressure-relief systems include new calculation methods and updates to existing codes and standards. Included here is an overview of recent developments and a look at the results from a recent study of pressure-relief system deficiencies…
All chemical process industries (CPI) operations involving combustion need to be concerned with the emission of combustion products, due to their potential environmental and health impacts. This one-page reference provides information about several of the most common combustion byproducts from…
Several methods are available for sizing two-phase pressure-relief valves (PRVs). Here, the API 520 homogeneous direct integration method is compared to a potentially simpler alternative that does not require integration Two-phase pressure-relief valves (PRVs) have been studied by many researchers.…