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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.
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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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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
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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
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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
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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
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Adsorption and regeneration on molecular sieves |
Anders F Carlsson, Ruud H M Herold and C J Smith, Shell Global Solutions International BV
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2006 / Q4 |
Optimal regeneration of a molecular sieve bed in a dehydration unit can help prevent liquid water formation. A generalised adsorption and regeneration program for optimising dehydration units at LNG plants is presented.
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Calculating light alkanes solubility in TEG |
Alireza Bahadori, National Iranian South Oil Company (NISOC)
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2006 / Q4 |
Plant model covering full range of dehydration plant operation conditions and experimental data estimate the amount of CH4, C2H6 and C3H8 absorbed per volume of TEG circulation vs partial pressure of light alkanes and absorber temperature.
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Refining high acid crudes |
Brian D Chambers, Honeywell Process Solutions Russell D Kane, iCorrosion
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2008 / Q4 |
Assessing crude oil corrosivity based on sulphidic and naphthenic acid corrosion. A revised procedure includes analysis, testing and a corrosion model that takes into account critical parameters for the evaluation of operational risk, unit upgrading and maintenance planning.
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