Chemical Engineering Practice

AIChE 2012 Spring Conference Modeling Dynamic Heat Transfer in Piping Systems using an Enhanced ASTM C-680 Algorithm Debby Sielegar Process Engineering Specialist Bechtel Oil, Gas & Chemicals, Inc. David Messersmith (co-author) LNG Technology Manager Bechtel Oil, Gas & Chemicals, Inc. ASTM...

Process Safety Management is often presented as technically complex, requiring a large staff of engineers and specialists with an array of tools and techniques that appear to grow in intricacy and sophistication year by year. Large companies are generally well positioned to operate in this arena –...

Sloshing is long problematic issue on achieving safety and reliability of LNG carriers and FLNG if the liquid level is below at a certain point in the containment system. Sloshing motion can be significantly reduced by covering the free-surface using a patented floater type blanket which is formed...

Practical Process Integration Retrofit Part 1. Cross-Pinch Method G.T.Polley A number of techniques have been developed to aid the process engineer retrofit heat recovery networks. The first of these methods was called the ?Cross-Pinch Method? (Tjoe & Linnhoff [1986]) and whilst it is widely...

ABSORPTION REFRIGERATION FOR AUXILIARY APPLICATIONS IN LNG PLANT Jordan Belue a , Robert Havlik b , Stanley Huang a , a: Chevron Energy Technology Company, Houston, Texas b: Tengizchevoil, LLP. ABSTRACT A Liquefied Natural Gas (LNG) plant demands a large amount of mechanical power for generating...

Advanced Process Control (APC) can take on many flavors and levels of sophistication. On the digital control systems (DCS), advanced regulatory controls can create value using property predictions cascaded to DCS controllers or feed forward or decoupling signals can be added to improve stability...

Practical Process Integration Retrofit Part 2. Remaining Problem Analysis & Driving Force Plot G.T.Polley The Cross-Pinch Method is not the only tool derived during the initial stages of the application of Pinch Technology to retrofit projects. Other significant developments were Remaining...

One of the most critical issues in engineering and design of FLNG is to reduce top side weight along with its load distribution to the sub-structure. Concentrated top side loads will result in an increase in hull structure costs. The developed 2-row containment system allows flexibility of top side...

Practical Process Integration Retrofit Part 4. Dealing with Large Projects G.T.Polley The Cross-Pinch Method is suitable for use in identify retrofits when the number of streams is small (the example used in the demonstration of this method had seven streams, Polley [2011]). However, Pinch...

This presentation illustrates the need and solution for operators viewing and making changes to set points and outputs in context. It shows the penalty and risks of operators shifting focus to faceplates and performing other window management tasks when trying to operate an industrial process. In-...