Computer-generated simulations of distillation processes are often validated experimentally. This reference discusses three concepts that influence comparisons between experimental results and simulation predictions: vapor-liquid equilibrium (VLE) of the components; relative liquid-to-vapor flowrates (L/V ratios in the column); and vapor-liquid contactor…
As E&C companies strive to develop Building Information Modeling (BIM) 6D models for the owners and operators of CPI facilities, strong efficiency gains benefit all parties Truly transformational change is upon the engineering and construction (E&C) industry, and some consider…
This column is based on the report “Polychloroprene Production – Cost Analysis,” published by Intratec. It can be found at the following URL: www.intratec.us/analysis/polychloroprene-production-cost. The need to find a substitute for natural rubber during World War II boosted the development…
New diagnostic devices can identify when pressure incidents happen, while keeping an eye on the condition of pressure-relief valves and rupture disks Any kind of pressurized system, from the hot-water heater in a residence to a massive chemical reactor, will…
Following a five-step process enables better outcomes for fluid system control Most often, operators and technicians will interact with components like ball valves or needle valves when adjusting a system’s operation. However, just as important to the effectiveness of a…
A review of recent data from the Combustible Dust Incident Database provides insights into dust-related process safety Fires and explosions in facilities that handle combustible dust remain an ongoing focus of process safety efforts across many areas of the chemical…
Temperature measurement is critical in many types of process equipment, including reactors, distillation columns, furnaces, heat exchangers, evaporators, boilers and more. Among the most widely used instruments for measuring temperatures in chemical process industries (CPI) operations are resistance temperature detectors…
This column is based on “Bio-Butanediol Production from Glucose,” a report published by Intratec. It can be found at: www.intratec.us/analysis/butanediol-production-cost. Butanediol (BDO) refers to all butylene glycol isomers. The most common isomer — 1,4-butanediol — is a versatile intermediate chemical…
In pressure vessel design, use this procedure for determining the individual permissible flange loads for joints between pressure vessel nozzles and connected pipework At the initial design stage of pressure vessels with nozzles that are provided with standard flanges according…
Designing a new solid-liquid filtration process or optimizing an existing one requires consideration of a number of factors aside from the type of filter that will be used. This one-page reference reviews two groups of considerations: one related to equipment,…