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Conference Presentations - 2012 AIChE Spring Meeting and Global Congress on Process Safety

Turnaround Excellence - Key Success Factors

Apr 4, 2012
Bobby Vichich
Turnaround Excellence is more than a state of being… it is a journey. Achieving and sustaining excellence is wholly dependent on a site approach of shared accountability towards Turnaround Excellence and must be a continually improving process. Starting well in advance of “feed out”, a long range...

Capital Cost Targeting of Total Site Heat Recovery

Apr 4, 2012
Petar Sabev Varbanov
Heat recovery on Total Site level can provide a considerably high potential for energy saving. It offers additional degrees of freedom for heat recovery and cogeneration. A key issue in Total Site heat recovery is to select the minimum allowed temperature difference (ΔT min ) specifications on a...

Dynamic Simulation: Value During LNG Process Design and Beyond

Apr 4, 2012
Kenneth V. Allsford
A contributor to complex/large project management difficulty is uncertainty gaps – gaps between the information required and that readily available within the project organization. Moreover, for large projects, information is generally spread among many professional personnel across multiple...

Acetylene Converter Safety Systems

Apr 4, 2012
Nelson Shen
Acetylene is produced as a by-product during the pyrolysis cracking of hydrocarbons in ethylene plant furnaces. Typically the acceptable acetylene contaminant level in the polymer grade ethylene product is in the range of 1 ppmv or lower. Since acetylene will fractionate with ethylene, it needs to...

Panel Discussion on Turnaround Excellence

Apr 4, 2012
Bobby Vichich
A panel of industry experts will discuss topics of interest to Ethylene Producers with respect to turnaround excellence. Topics will be solicited from session attendees during the paper portion of the session. Prepared discussion topics will include: How are late scope changes handled, Is there...

Design Considerations for Diesel Hydrotreaters

Apr 4, 2012
Ian M. Glasgow
In 2006, the United States EPA mandated the use of 15 ppmw ultra-low sulfur diesel (ULSD) for on-road diesel fuel. At that time several refiners either revamped existing facilities or constructed grass roots facilities to meet the specification. Some facilities did not implement ULSD process...

Synthesis and Optimisation of Demethaniser Flowsheets for NGL Recovery

Apr 4, 2012
Muneeb Nawaz
Synthesis and Optimisation of Demethaniser Flowsheets for NGL Recovery Muneeb Nawaz 1 , Megan Jobson 2 , Adrian Finn 1 1. Costain - Energy & Process, Costain House, Styal Road, Manchester, M22 5WN 2. Centre for Process Integration, School of Chemical Engineering and Analytical Science,...

Simple Opportunities for Improving Energy Efficiency

Apr 4, 2012
Alan Rossiter
Energy efficiency has become an important theme in the process industries, and many companies have implemented sophisticated strategies to improve both the design and the operation of their plants. However, many efficiency improvements are possible simply by doing basic things right. This article...

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