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Methods to Achieve Sustainable Clean-In-Place

A clean-in-place (CIP) system is among the largest users of consumables at a hygienic processing plant. Presented here are tips for reducing the consumption of water, chemicals and time in CIP operations In many industries there is a burgeoning awareness…

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.…

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,…

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Process Commercialization: The 2017 Kirkpatrick Chemical Engineering Achievement Award

The path to commercialization can be long and arduous, which means the engineers and chemists taking the path must have a good deal of patience, dedication and fortitude. To honor the efforts of those chemical engineers and their companies that…

Pump Sizing and Selection Made Easy

Viscosity, power consumption, commercial availability and lifecycle cost analysis are all important considerations in pump sizing. An automated spreadsheet method helps engineers take those factors into account in centrifugal pump selection Many aspiring chemical engineers enter industry after university study…

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Cost Engineering: Time Value of Money

Deciding whether to put a project on the fast track entails risks. Some observations are presented here to help minimize risks and maximize profits Time is money!” my mother used to tell me, whenever she caught me reading comic books…

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Decommissioning: Preparing Plants for a Retrofit

As technologies advance and market challenges continue to pose new pressures for operators, the decommissioning and retrofitting of facilities is inevitable. This article provides guidance on how to tackle projects of this nature safely and efficiently As with many industrial…

Valves: Emissions Standards and Current Practices

New industry standards aimed at reducing fugitive emissions have necessitated updates to valve-testing procedures and a renewed focus on high-performance sealing and packing technologies While reducing fugitive emissions is a leading concern in the fight against climate change, emissions continue…

Minimizing Leakage on Heat-Exchanger Girth Flanges

Thermal distortion in heat-exchanger internal components can lead to leakage, but several design measures can be taken to mitigate these concerns Leakage of bolted flange joints results in additional costs at any facility in the chemical process industries (CPI), and…