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Environment, Health, Safety & Security

Pressure-Relief System Design: Developments and Deficiencies

Areas of recent activity for pressure-relief systems include new calculation methods and updates to existing codes and standards. Included here is an overview of recent developments and a look at the results from a recent study of pressure-relief system deficiencies…

Sizing Pressure-Relief Valves for Two-Phase Flow

Several methods are available for sizing two-phase pressure-relief valves (PRVs). Here, the API 520 homogeneous direct integration method is compared to a potentially simpler alternative that does not require integration Two-phase pressure-relief valves (PRVs) have been studied by many researchers.…

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Facts at your Fingertips: Flow Measurement in Large Lines, Ducts and Stacks

Process industry plants install sophisticated air-pollution control systems, but they can be ineffective if the flowmeters on which they rely deliver inaccurate or unreliable data. This one-page reference provides information on measuring the flow of gaseous combustion products in large…

Single-Use Gloves: Problems and Solutions

When wearing single-use protective gloves, sweat can create health and safety issues. Presented here is a look at the causes of the problems and possible solutions A great many situations across the chemical process industries (CPI) require quality hand protection,…

Enclosed Combustion Equipment and Technology

A thorough understanding of enclosed combustion technologies will help engineers to select the proper equipment to balance emissions-control performance with efficiency, costs and complexity Selection of an enclosed combustion solution is a complex process that involves various environmental and operational…

Disaster Preparedness at Manufacturing Facilities

Development of robust preparation and response procedures can help chemical plants to weather disaster events and return to normal operations in a safe and efficient manner Having a well-defined and understood approach to disaster preparation and response will ensure that…

An improved anti-corrosion coating for steel

Using zinc-based coatings to protect galvanized steel from corrosion has been standard practice in the steel industry for decades, but these processes have several key disadvantages. First, achieving longer corrosion performance requires thicker layers of zinc, which raises costs and…

Recently Published Books for the CPI: November 2017

The following are recently published titles relevant to the chemical process industries (CPI) Sustainable Water Management and Technologies, Vol. 2: Sustainable Water Technologies, By Daniel Chen, Taylor and Francis Group, 2017, 828 pages, $279.95. What Every Engineer Should Know About…

Emergency Shutdown Valves: A Functional Safety Approach to Selection

The relationship between valve selection and safety certification still causes confusion. A focus on functional safety can help to elucidate Among the many varied viewpoints on the topic of emergency shutdown (ESD) valves, there are several aspects that continue to…

Physical and cybersecurity: Protect Your Plant

Both physical security and cybersecurity must be in place to keep chemical facilities safe from attack While almost all businesses in today’s world are concerned with security — both physical security and cybersecurity — chemical processors likely have a deeper…