Environment, Health, Safety & Security
The Direct Integration Method: A Best Practice for Relief Valve Sizing
What if someone were to tell you that there is one method available for sizing relief valves that applies to virtually every situation, including two-phase flow and supercritical fluids? And what if they told you that method is more accurate…
Gas Hazard Definitions and Data
The detection of gases in plant environments has a critical and wide-ranging role in the chemical process industries (CPI). Among the major applications of gas detection are limiting personnel exposure to hazardous chemicals, preventing explosive atmospheres, protecting the environment and…
Safety-Instrumented Systems: Focus on Measurement Diagnostics
This article provides guidance to the designer and operator of a safety-instrumented system (SIS), with an emphasis on conducting measurements. The use of best practices to ensure the strength of the overall system design, and the use of instrument diversity…
Runaway Reactions: Ignore the Chemistry at Your Peril
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Avoiding Runaway Reactions
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Design Safety Instrumented Systems with Relevant Data
Users design safety instrumented systems to bring the risk of identified process hazards to within tolerable levels, using application-specific risk models, user inspection schedules, and safety data for the devices under consideration. A key problem when designing such systems is…
A step toward mineralizing CO2 captured from fluegas
Researchers from Newcastle University (U.K.; www.ncl.ac.uk) have discovered that, in the presence of a nickel catalyst, CO2 can be rapidly and cheaply converted into solid carbonate salts. The discovery could lead to a simpler and less-expensive alternative for carbon capture…
A cheaper way to destroy organic contaminants?
An ultraviolet oxidation process for the destruction of water-borne organic contaminants that combines UV with chlorine, rather than hydrogen peroxide, is being developed by MIOX Corp. (Albuquerque, N.M.; www.miox.com). The company’s Advanced Oxidation Process (AOP) promises to be less expensive…
The CV-S explosion vent now has a rectangular shape
This company has released the rectangular version of its popular CV-S Explosion vent. Specifically designed to provide non-fragmenting opening when protection industrial process equipment, the CV-S explosion vent is said to provide superior protection in applications such as air-material separation,…
Responding to Environmental Inspections
One of the most unsettling experiences in a company’s existence may be the surprise regulatory inspection by a representative of the U.S. Environmental Protection Agency (EPA) or a State Environmental Agency. What if you refuse to let them in? What…