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Environment, Health, Safety & Security

Vapor Depressurization: Concept and Implementation

During process operations, elevated pressure inside of isolated zones within a process or system can be rapidly reduced by the release of gas and vapor to a dedicated blowdown network. Analysis can be carried out to determine whether a given…

Controlling Air Pollutants

Selecting air-pollution control equipment can be tricky. It’s not only difficult to determine which pollutants must be controlled, but also which type of equipment will best control them to required levels for any given process or facility because there is…

Evonik Industries and OPX Biotechnologies to jointly develop bio-based chemicals

Evonik Industries AG (Essen; www.evonik.com) and OPX Biotechnologies, Inc. (OPXBio; Boulder, Colo.; www.opxbio.com) have entered into an agreement to jointly develop certain bio-based specialty chemicals. The joint development agreement was signed May 3, 2013, and calls for OPXBio to use its…

Gas-phase option for NOx abatement

The first commercial application of a newly developed process for the treatment of oxides of nitrogen (NOx) waste gas has been established at a milling operation in Los Angeles, Calif. Developed by Pacific Rim Design and Development (PRDD; Reno, Nev.;…

Combustible Dust safety

The U.S. Occupational Safety and Health Admin. (OSHA; Washington, D.C.; www.osha.gov) has flagged combustible dusts as one of its top issues since the Imperial Sugar Mill explosion in Port Wentworth, Georgia, that killed 14 employees and injured many others in…

Small-company safety

Some injuries are permanent; some injuries are total. People who work for, or near, small companies need to be protected just as much as those associated with large companies. Small companies, however, usually cannot afford to employ full-time, certified, degreed,…

Thermal treatment of residues with heat recovery

Regardless of whether one is producing acrylic acid, butanediol, tetrahydrofuran or other chemicals, residues will arise that need to be disposed of. This company delivers turnkey thermal utilization plants for these and other production facilities that ensure not only the…

This mobile phone can be used in hazardous zones

The Advantage 1.0 is said to be the world’s first ATEX and IEC-Ex Zone 1/21 mobile phone with 3G technology. The device is a very robust, dust- and water-proof industry mobile phone, according to IP 67. It withstands drops from…

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…