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| Trouble-free design of refinery fractionators |
Henry Z Kister Fluor Corporation |
2003 / Q4 |
A
review of factors most frequently the cause of distillation towers
falling short of design objectives. Analysis of case histories provides
guidelines for identifying potential troublespots in the most important
fractionators
More
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| Specifications – importance of getting them right |
Steve White and Scott Fulton Process Consulting Services
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2003 / Q4 |
Faulty
equipment specifications sometimes carry unforeseen penalties, with
loss of performance. But do not blame the original equipment
manufacturer, say the authors – it is the process design engineer’s
responsibility to meet the objectives
More
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| Debottlenecking coker Fractionators |
Charlie Herron and Keith Whitt Shell Global Solutions
Greg Hall Shell Oil Products |
2003 / Q4 |
Tradeoffs
to be considered when high capacity trays or structured packing is
selected to meet the required capacity, product quality and yields,
together with ease of maintenance, in the delayed coker main
fractionator and gas plant
More
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| Foam control in crude units |
Tony Barletta and Edward Hartman Process Consulting Services Inc
David J Leake EGS Systems Inc |
2004 / Q4 |
Installation
of vortex tube clusters in crude unit preflash drums has eliminated
foam carry-over, increasing diesel and atmospheric gasoil product
yields. By avoiding preflash drum replacement, these retrofits have cut
revamp investment
More
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| Increasing vacuum tower performance |
Mark Pilling Nina Prohorenko Alan Szymanski Sulzer Chemtech USA Inc
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2004 / Q4 |
Advantages
of using gravity flow liquid distributors in services where,
historically, spray nozzles have been used, specifically in refinery
vacuum tower wash sections where liquid entrainment must be avoided if
capacity is to be increased
More
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| Deep-cut vacuum unit design |
Tony Barletta and Scott W Golden, Process Consulting Services Inc
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2005 / Q4 |
Process
modelling and equipment know-how are needed to design deep-cut vacuum
units that operate reliably at high temperature and low pressure.
The model must reflect the actual performance of the equipment and not
simply the designers' intent.
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| Increasing distillation column throughput |
George E Dzyacky, 2ndpoint LLC
A Frank Seibert, J Christopher Lewis, University of Texas at Austin
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2005 / Q4 |
Pattern-recognition
control strategy may help prevent flooding in distillation towers and
in some cases see capacity improvements, as well as giving plant
personnel confidence to operate the column near its flood point.
More
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| Amine process simulation modelling |
Bill Pennycook, Simon Jackson and Iain Martin, Davy Process Technology Ltd
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2005 / Q4 |
Generic
design techniques are used to verify thermodynamic data before the
construction of a complete simulation model. The resulting
optimised process is a cost-effective
approach to a non-ideal separation.
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| Predicting amine blend performance |
Hamid Reza Khakdaman and Ali Taghi Zoghi, National Iranian Oil Company Majid Abedinzadegan Abdi, Memorial University of Newfoundland.
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2005 / Q4 |
A
process simulator is able to predict the performance of an Iranian
gas-sweetening plant. Various mixtures of diethanolamine (DEA)
and Methyl diethanolamine (MDEA) are used to investigate the potential
for an increase in plant capacity.
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