Browse Editions : 2007 / Q4
Title Author Edition
Engineering emails for success

Gregory M Lilburne, Hafedh Al-Qassab and Savas Soydaner, The Bahrain Petroleum Company BSC (c)

2007 / Q4

PTQ has just published the Bapco Technical Writing Style Guide, based on two decades' experience of written communication in the technical services department of The Bahrain Petroleum Company.  This article is based on the section relating to eamil.  The Style Guide can now be downloaded from www.eptq.com.

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FCC fundamentals: cyclones and vendor datasheets

Ziad S Jawad, The Shaw Group

2007 / Q4

A summary of FCC cyclones and their design.  Understanding FCC cyclone vendor process datasheets and how to effectively use this valuable tool.  Quick design checks of vendor cyclone process datasheets using cyclone fundamentals are provided.

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Hydrocracking for heavy feestock conversion

Vasant Thakkar, Don Ackelson, Rich Rossi, Bart Dziabala and Jim McGehee, UOP LLC

2007 / Q4

As refiners move to process heavier crudes, hydrocracking and hydrotreating have taken on a more prominent role.  The technical challenges posed by the chemical composition of heavy feedstock is analysed along with results of catalyst development efforts.

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Unconventional crude upgrading challenges

Scott Sayles, KBC Advanced Technologies Inc

2007 / Q4

Case studies of upgrader technology selection such as blending of syncrude with bitumen and other intermediates.  Unconventional crude quality is dependent on production location and method, design and final blending.

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FCC unit revamp meets multiple objectives

 Mary Richardson, Suncor Energy Inc

Ye-Mon Chen and Richard Sanborn, Shell Global Solutions (US) Inc

2007 / Q4

Reliability improvement and MACT II compliance for an FCCU were achieved with regenerator modifications and new third-stage separator system.  Benefits included five-year run turn around cycle and less after-burn.

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Crude unit corrosion-control programme

 Randy Rechtien, Baker Petrolite Corporation

2007 / Q4

An overview of crude unit corrosion-control techniques using low- and high-temperature case studies.  Overhead corrosion control for low-temperature zones and naphthenic acid corrosion control for high-temperature zones are detailed.

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Increasing FCC unit performance

Divya Jain and Grandham Sri Ganesh, Hindustan Petroleum Corporation Ltd

2007 / Q4

How one refinery's low-investment revamp strategy boosted FCC performance.  Unit limitations are discussed in detail, followed by the options that were explored and the final revamp carried out for overcoming unit constraints.

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Oil/water interface control for desalters

 Paul Hewitt, Tracerco

2007 / Q4

Profiling instrument provides vertical real-time phase density measurement in desalter vessels.  Benefits include reduced process upsets from interface excursions, optimisation of crude blends, minimisation of chemical usage and reduction in chloride carry-through.

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Troubleshooting tail gas amine treaters

Nathan A Hatcher and Alfred E Keller, ConocoPhillips Company

Ralph H Weiland and M S Sivasubramanian, Optimized Gas Treating Inc.

2007 / Q4

Simulation of a tail gas-treating unit contaminated with sodium and heat-stable salt anions.  Comparisons are made between plant performance data and the simulations.  Accurate solvent analysis leads to improved simulation accuracy.

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Ammonium salt removal in fuel gas burners

Torsten Diestelkamp, Hermann Kempen and Berthold Otzisk, Kurita Europe GmbH

Bernhard Hugot, BP Gelsenkirchen GmbH

2007 / Q4

Chemical removal of ammonium salts allows refiners to clean fouled burner nozzles during normal operation without removing them for mechanical cleaning.  Regular maintenance work is reduced to a minimum with less material stress for the equipment.

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Advances in LNG vapourisation technologies

Martin J Rosetta and Janna S Sills, Black & Veatch

2007 / Q4

Increasing fuel efficiency, decreasing emissions and the impact on process economics compared to tradtional and novel LNG vapourisation technoloiges.  Optimising the energy usage of the vapourisation train significantly impacts overall project economics.

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Carbon capture in petrochemical operations

Bollapraqada K Bhaskararao, MVGR College of Engineering

2007 / Q4

A major obstacle to greenhouse gas reduction in refinery and petrochemical operations is the need for CO2 storage or sequestration.  However, chemical convertion of captured CO2 to CO, which can be converted into valuable hydrocarbons, may be possible.

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Process compressors for world-scale methanol plants

Simon Early, Davy Process Technology

2007 / Q4

Advancements in computing power and catalyst shape and size since the 1990s have made it possible to design the world's largest methanol plant, using compressor selection as the key to the optimum design.

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Tray technology enhances extraction

Waldo de Villiers and Jose L Bravo, Shell Global Solutions (US) Inc

Glenn Shiveler, Sulzer Chemtech USA Inc

Frank Siebert, The University of Texas at Austin

2007 / Q4

A case study involving the revamp of two rotating disc contactors in aromatics service highlights the most important design considerations for enhancing capacity and efficiency in high-performance extraction sieve trays.

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Computation of blending indices

Didier Lambert, Topnir Systems

2007 / Q4

Prediction of blending indices and characterisation of fuel components have increased in complexity with the blending of biofuels and additives.  Case studies show how a real time system for the computation of blending indices has improved fuel recipe quality.

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Post-revamp startup planning and support

Andre Bernard, NOVA Chemicals Ltd

2007 / Q4

Key design changes affecting ethylene plant process behaviour can directly impact plant startup.  Process simulation has therefore been used to provide plant operators direction and resolution of abnormal conditions during startup execution.

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