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| Paraffins isomerisation options |
Bruno Domergue and Laurent Watripont Axens |
2005 / Q2 |
A variety of isomerisation technologies are available, from
conventional once-through and deisohexaniser recycle processes to
advanced recycle schemes involving molecular separation processes
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| High-efficiency coalescers for analyser protection |
Hans Thoma OMV Burghausen Refinery
Verena Titzenthaler and Thomas Reisenhofer Pall Corporation
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2005 / Q2 |
Coalescers are designed to either separate liquid aerosols from gas
streams or to break liquid/liquid emulsions. Both liquid/gas and
liquid/liquid coalescer technologies have been successfully applied to
analyser technology
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| Expander inlet piping design |
P T Klumpp Refinery Technology Inc
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2005 / Q2 |
The expander inlet piping system linked to the FCCU is one of the
most complex piping systems to analyse and design in a refinery.
Expansion joints used in the expander inlet piping system are also
reviewed
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| Controlling FCCU dilute phase reactions |
Warren S Letzsch Stone & Webster Engineering Inc
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2005 / Q2 |
Various strategies are available to control unwanted secondary
reactions in the FCCU reactor’s dilute phase, including vapour quench
technology, designed to lower the temperature, or close-coupled systems
to reduce the dilute phase contact time
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| Bitumen processing developments |
Mazen M Abu-Khader Al-Balqa Applied University
James G Speight CD & W Inc |
2005 / Q2 |
Several process options have been tested for upgrading extra heavy
oil at various processing facilities. The possibility of future process
configurations for producing marketable products from bitumen is
discussed
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| Improved residuum cracking |
Mingting Xu and Rostam J Madon Engelhard Corporation
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2005 / Q2 |
Catalyst deactivation is a challenge to FCCU yields when processing
residuum. The detrimental effect of nickel and vanadium in forming
contaminant coke and hydrogen can be reduced via appropriate
passivation technology
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| Simulating optimal tank farm design |
Michael D Stewart Foster Wheeler North America Corp
L Dean Trierwiler Haverly Systems Inc
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2005 / Q2 |
Development of a computerised model incorporating Monte Carlo
operational risk simulation with the optimisation power of linear
programming. The basis, structure and execution of this model are
discussed
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| Saving fuel costs with WPHEs |
Peter Barnes PBA Consulting
Pierre Xavier Bussonnet Packinox SA François Reverdy Packinox Inc
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2005 / Q2 |
WPHEs save fuel costs and serve as a cost-effective CO2-trimming
technology by reducing heater duty in reformers and HDS units. The
resulting fuel cost savings add to emission trade benefits
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| Managing hydrogen to achieve ULS targets |
Dennis Vauk Air Liquide America LP
Rob Gardner Irving Oil Ltd
David Mercer Fluor Canada Ltd
Nick Hallale Aspen Technology
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2005 / Q2 |
To meet clean fuel challenges, refiners must manage hydrogen usage to
achieve sulphur reduction targets for 2005 and beyond. Hydrogen network
optimisation can deliver significant benefits over traditional
approaches
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| Reducing CO2 emissions |
Ian Moore AspenTech UK Ltd
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2005 / Q2 |
Several long-term challenges and opportunities face refiners after
the introduction of the European Union ETS. These include emissions
monitoring, operational improvements, emissions forecasting and
economic emission reduction
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| Enhancing SRUs with oxygen-enriched air |
Mukesh Mehta CB&I TPA
Aaron Stryk CB&I |
2005 / Q2 |
As clean fuels regulations become more stringent, refiners looking for new ways to boost the capacities of their existing sulphur-recovery units are turning to oxygen-enhancement technologies
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| Selecting materials for FCCUs |
Xu Yonggang and Jia Qiliang SINOPEC Luoyang Petrochemical Engineering Corporation
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2005 / Q2 |
Proper material selection for FCCU equipment is critical for long-term reliable operation. Different materials deal with different forms of corrosion, and each material has its advantages and limitations
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| Catalyst addition in ebullated-bed units |
Scott Sayles and Jim Bailor KBC Advanced Technologies Inc |
2005 / Q2 |
A simple theoretical approach is available for calculating the catalyst metals content, catalyst physical properties and the effect on catalyst activity. Different catalyst addition rates are reviewed and compared
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| Turnaround preparation |
Don Turner Jacobs Field Services
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2005 / Q2 |
Several work processes have been developed for maintenance turnarounds. Incorporating these processes into a master cost-control and scheduling system ensures materials availability as well as correct staffing levels and timely execution
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| Increasing propylene for the petrochemical market |
Solly Ismail Engelhard Corporation
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2005 / Q2 |
Increasing FCC propylene with shape-selective additives minimises the impact on unit process conditions and equipment. Production of butylenes and isobutene without significant increases in dry gas and coke yield is an added benefit
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