2009
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Cashing in with Catalysts (PDF: 448 KB)
Hydrocarbon Engineering, November 2009. Alexander Jimenez, Chevron Lummus Global, USA, explains how the latest catalyst technology can maximise production of distillates in an existing hydrocracker. |
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Hydroprocessing Upgrades to Meet Changing Fuels Requirements (PDF: 262 KB)
PTQ Revamps Supplement, October 2009. Jay Parekh and Harjeet Virdi, Chevron Lummus Global, USA, discuss adapting installed hydroprocessing units through a variety of schemes enables refiners to shift their fuels slates to meet changing demand and specifications. |
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A Winning Combination (PDF: 778 KB)
Hydrocarbon Engineering, September 2009. Gary Sieli, Lummus Technology, USA, and Nash Gupta, Chevron Lummus Global, USA, discuss delayed coking and LC-FINING ebullated bed hydrocracker technologies. This article describes the advantages refineries with these residue upgrading technologies have, especially when used in combination, in terms of improving profitability by having the capacity to handle heavier, higher sulfur crude feedstocks.
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Hydrocracking Catalyst and Processing Developments (PDF: 289 KB)
PTQ, Quarter 3 2009. Robert Wade, Jim Vislocky, Theo Maesen and Dan Torchia, Chevron Lummus Global, USA, discuss improvements to hydrocracking catalyst activity and selectivity at various operational and feedstocks conditions. |
2007
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Cracking Catalyst Systems (PDF: 2.1 MB)
Hydrocarbon Engineering, November 2007. Dave Krenzke, Advanced Refining Technologies, USA, and Jim Vislocky, Chevron Lummus Global, USA, discuss some recent developments in hydroprocessing catalysts, focusing on improved catalysts for both hydrotreating and hydrocracking of gas oil boiling range material to clean fuels.
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2006
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Catalyst Loading: A Critical Variable (PDF: 236 KB)
Hydrocarbon Engineering, September 2006. Dan Torchia and Gavin Mcleod, Chevron Lummus Global, USA, and Paul Cannatella and Greg Scott, Valero, USA, analyze the impact of proper catalyst loading on hydrocracker performance.
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Producing Lubes and Fuels (PDF: 1.25 MB)
PTQ Catalysis Issue, 2006. Charlie Wills and Art Dahlberg, Chevron Lummus Global, USA, discuss how hydrocracking is beneficial when producing feeds for lube base stocks and fuels with the integration of ISOCRACKING® / ISODEWAXING® catalysts and CLG’s process technologies. |
2005
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Hydroprocessing Revamp Configurations (PDF: 100 KB)
PTQ Catalysis Issue, 2005. Ujjal Mukherjee, Jerry Mayer and Bharat Srinivasan, Chevron Lummus Global, USA, discuss 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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