Technical & Practical
Technology Profile: Urea Production from Ammonia via a Self-Stripping Process
This column is based on “Prilled Urea from Ammonia via Self-Stripping Process – Cost Analysis,” a report published by Intratec. It can be found at: www.intratec.us/analysis/urea-production-cost. Urea is a nitrogenous compound consisting of a carbonyl group attached to two amine…
Facts at Your Fingertips: Zeolites
The physical properties of zeolites make them extremely important in many industrial processes. This one-page reference provides information on the structure and chemistry of zeolites that allows their use in the chemical process industries (CPI). Zeolite structure Zeolites are a…
Setting Specifications in the Modern World
Utilizing ‘Tolerance Intervals’ can help to set more realistic specification ranges, especially when only small amounts of data are available Specifications provide a framework by which one can gage whether products have been manufactured successfully. They identify a product’s key…
Practical Solutions to Modular Project Execution
Follow this guidance to improve results on capital projects The opportunities for modularizing industrial and chemical projects are growing at an amazing pace. Once considered a mitigation strategy only for projects in remote areas with harsh climatic conditions or a…
Selection of Severe Service Valves
Severe service valves (SSVs) differ from general purpose valves in important ways. Presented here is guidance on how to increase service life, reduce costs and improve safety and environmental performance of SSVs Severe service valves (SSVs) are often identified by…
Technology Profile: Hydrogen Peroxide Production
This column is based on “Hydrogen Peroxide Production Process Cost Analysis,” a report published by Intratec. It can be found at: www.intratec.us/analysis/hydrogen-peroxide-production-cost. Hydrogen peroxide (H2O2) is the simplest peroxide (defined as molecules with two oxygen atoms covalently bonded to one…
Facts at your Fingertips: Alarm Management
Modern control systems for chemical processes can generate frequent alarms. This one-page reference provides information on common alarm-management metrics, which can foster focused remedial actions and ultimately lead to a safer, better-performing plant. Alarm frequency As alarm frequency increases, an…
Guarding Against Fires and Explosions Caused by Self-Heating
The two experimental methods presented here can be used to quantify powder self-heating hazards in layer and bulk conditions in industrial processes Bulk storage of heated powders and powder accumulations on hot surfaces or in heated environments can potentially lead…
Improve Energy Efficiency using Hydraulic Power Recovery Turbines
This mature technology can be used to save energy, generate revenue and reduce emissions With the Paris Agreement entering into force last November, the Parties to the Convention established their goals to implement measures to reduce the amount of greenhouse…
Storage Tanks: Heating and Cooling System Design
Various heating or cooling options are described here, along with the factors and design parameters that need to be considered. A sample calculation regarding coils is included Tanks constitute important equipment in the chemical process industries (CPI). Various types of…