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| Recycling of GTL catalysts |
Andreas H Brumby and Michel P Verhelst, Umicore Precious Metals Refining
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2005 / Catalysis |
Recovery and refining of cobalt and precious metals used in Fischer Tropsch catalysts should be considered due to their value. The impact of certain precious metals on the metals markets also justifies their recovery
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| Reformer catalyst Regeneration |
Dick Llorens, Gemini Industries Inc |
2005 / Catalysis |
To make a proper evaluation of the economics of spent catalyst regeneration, one must consider the direct and indirect costs, risks and long-term liabilities that occur when the catalytic reforming unit’s catalyst regeneration process is abbreviated
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| Mercury removal from liquid hydrocarbons |
Peter J H Carnell and Steve Willis, Johnson Matthey Catalysts |
2005 / Catalysis |
Various methodologies for the measurement of mercury levels in gaseous and liquid hydrocarbons are available, while inorganic routes for mercury removal have a number of advantages over the organic approach
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| Recovering precious metals from spent catalysts |
Richard J DeSantis Sabin Metal Corporation
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2005 / Catalysis |
Finding and working with the right refiner can make a big difference
in returns, not to mention many of the legal implications involved if
the refiner crosses the line with regard to environmental regulations
when processing spent catalysts
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| Catalyst performance improvements |
Charles McCloud Criterion Catalysts & Technologies
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2005 / Catalysis |
Manufacturing technology advancements have lead to step-out
improvements in catalyst performance and stability for ULSD, FCC
pretreater and hydrocracker pretreater applications
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| Increasing FCC Yields |
Lori McDowell and Silas Y Wong Grace Davison Refining Technologies
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2005 / Catalysis |
Improvements to a FCC unit changed its operating characteristics.
These changes called for a catalyst formulated with higher activity,
stability and metals tolerance at higher throughputs to increase the
yield of valuable liquid products
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| Catalyst life cycle Performance |
Chris Anderle UOP LLC
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2005 / Catalysis |
Refiners can obtain value from solutions beyond the catalyst
selection process if the decision-making process includes a review of
the entire catalyst cycle
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| Boosting FCC propylene with minimal conversion loss |
Pieter Imhof, Erja P H Rautiainen and Arja Hakuli-Pieterse Albemarle Catalysts bv
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2005 / Catalysis |
Catalyst and additive technology can maximise light olefin yields
with minimal dilution of the base catalyst and little impact on bottoms
conversion. It also diminishes secondary reactions such as hydrogen
transfer
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| ULSD production at low pressure |
Lars K Skyum Haldor Topsøe A/S
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2005 / Catalysis |
A large number of existing diesel hydrotreaters are operated at
pressures below 30 bar. The catalyst used for production of ULSD in
these hydrotreaters differs from catalyst formulations that perform
well at higher pressures
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| Reticulated ceramics improve reactor performance |
William “Dusty” Duke and Austin Schneider Crystaphase Technologies Inc |
2005 / Catalysis |
With many hydroprocessing units being pushed beyond their original
design, refiners need to improve the unit’s reactor performance.
Upgrading reactor top-bed loadings that include reticulated ceramics
will improve catalyst performance
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| Hydroprocessing revamp configurations |
Ujjal Mukherjee, Jerry Mayer and Bharat Srinivasan Chevron Lummus Global |
2005 / Catalysis |
Upgrading existing hydrocrackers from single-stage to two-stage
recycle offers significantly higher flexibility for increasing
high-quality FCC feeds and naphtha/diesel production
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| Laboratory simulation of naphtha processing |
Avelino Corma Canos, Universidad Politécnica de Valencia |
2005 / Catalysis |
A number of naphtha simulation options are available. The four scenarios that form the basis of these simulations can lead to the best options for cracking less conventional streams such as LSR and FCC naphtha, while also producing propylene
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| Catalyst modelling improvements |
Greg Jackson Pavilion Technologies Inc
Jim Wambaugh CRI Catalyst Company |
2005 / Catalysis |
Reducing the time to analyse catalyst and reactor performance is crucial to petrochemical profitability. Use of a real-time catalyst performance modelling system can maximise catalyst life while also reducing costly laboratory analysis
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| Adding value to FCC operations |
Solly ismail and Eugenio Macaluso, Engelhard Corporation
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2005 / Catalysis |
Three case studies demonstrate how a distributed matrix
structure-based additive enables the conversion of low-valued
heavy-cycle oil and slurry into gasoline and LPG.
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