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Environment, Health, Safety & Security

A gas turbine with low NOx emissions

NEDO  and Hitachi Ltd. (Tokyo, www.hitachi.com) have developed a new combustion technology that could reduce the emissions of oxides of nitrogen (NOx) to below 10 ppm without the addition of diluents. As part of the CCS-IGCC project (carbon capture and…

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…

Focus on Explosion Protection

This flowrate totalizer has an explosion-proof enclosure Precision Digital The PD6830 ProtEX-RTP Pulse Input Rate/Totalizer has a rugged, explosion-proof, NEMA 4X enclosure and is designed for the quick and easy display of local or remote flow information in hazardous areas.…

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Compressors: N2 Expands the Applicability of Dry Gas Seals

Ongoing advances in the design and use of dry gas seals (DGSs; [ 1]) — as an alternative to traditional oil-lubricated wet seals [ 2] — have helped to improve the reliability and efficiency of compressors throughout the chemical process…

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…

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…