The anthropogenic global warming debate experienced a reawakening last month, following the U.S. Environmental Protection Agency’s proposed finding that greenhouse gases contribute to air pollution that may endanger public health or welfare. In an effort to keep the debate from…
By continuously monitoring for abnormal situations, such as a fire, and combustible or toxic gas releases, fire and gas (F&G) detection and mitigation systems are the linchpins to maintaining overall safety and operation of industrial facilities. The premise of these…
As CRTs become an obsolete form of video display technology, recycling their lead-filled glass is increasingly important Earlier this decade, liquid crystal display (LCD) and plasma screens surpassed cathode ray tubes (CRTs) as the visual display of choice in computers…
The U.S. Environmental Protection Agency (EPA, Washington D.C.) plans to set up the first U.S. national system for reporting emissions of CO2 and other greenhouse gases. The proposal marks the first step toward a program for climate control. "Through this…
Protecting process systems from overpressurization is vital throughout the chemical process industries (CPI). Both safety relief valves and rupture disks are commonly used for this purpose. Sometimes the combination of a relief valve with a rupture disk can add service…
Rupture disc devices provide overpressure protection for a variety of storage and process vessels and equipment. The objective of the rupture disc is to maintain a leak-tight seal and be a passive bystander until called upon to relieve excess pressure.…
Technical and specialty gases find use in many synthesis processes and a number of unit operations, in analysis and in plant maintenance. This article outlines applications for gases in fine and specialty chemistry, ranging from synthesis processes and inerting to…
Eye injuries of all types occur at a rate of more than 2,000 per day in the U.S., and half of those occur in the workplace. In 2006, the U.S. Bureau of Labor Statistics (BLS) reported over 52,000 workplace injuries…
Ultrasound has been applied, with limited success, for the remediation of contaminated soil. Up to now, the approach has been to first extract the contaminant from the soil into a liquid, which is then passed through a sono-reactor where the…
I would like to draw your attention to a few points on the November 2008 article, Pressure Relief System Design (pp. 40–45): 1. Pressure drop and pressure loss: The inlet pressure “drop” that the author refers to under Relief system…