2014



Outlook for 2014 (PDF: 574 KB)
PTQ, Quarter 1 2014. What are the important trends affecting the downstream processing industry this year? Executives and experts forecast challenges and prospects that could affect profitability. Among them, Chevron Lummus Global's Member, Board of Directors, Daniel McCarthy presents his views.

2013



Don't be medieval, make more diesel! (PDF: 10.5 MB)
Hydrocarbon Engineering, November 2013. Bi-Zeng Zhan and Theo Maesen, Chevron Lummus Global, USA, Jay Parekh and Dan Torchia, Advanced Refining Technology, USA, describe how catalyst technology approaches and processing tactics can be used to optimise hydrocracker unit operation in order to meet the future needs for diesel and gas oil production.


Flexibility through catalysis (PDF: 1.75 MB)
Hydrocarbon Engineering, September 2013. C.W. Olsen, Woody Shiflett, Dan Torchia, Advanced Refining Technologies, USA, and Dave Brossard, Chevron Lummus Global, USA, discuss the best ways of optimising hydroprocessing catalyst systems for hydrocracking and diesel hydrotreating applications.


Reactor effluent air cooler safety through design (PDF: 101 KB)
PTQ, Revamps 2013. Quality-controlled replacement of carbon steel with Duplex 2205 for revamps can increase the service life and reliability of the REAC in the high-pressure loop.


Outlook for 2013 (PDF: 2.69 MB)
PTQ, Quarter 1 2013. What are the important trends affecting the downstream processing industry this year? Executives and experts forecast challenges and prospects that could affect profitability.

2012



Clean, green, hydrocracking machine (PDF: 435 KB)
Hydrocarbon Engineering, June 2012. Dan Torchia, Arun Arora and Luyen Vo, Chevron Lummus Global, USA, offer an overview of the hydrocracking technology advancements that provide creative ways to meet the clean fuels challenge.


Outlook for 2012 (PDF: 213 KB)
PTQ, Quarter 1 2012. What are the important trends affecting the downstream processing industry this year? Executives and experts forecast challenges and prospects that could affect profitability. Among them, Chevron Lummus Global's Co-Managing Director Leon de Bruyn presents his views.

2011



Refinery Configurations for Maximising Middle Distillates (PDF: 6.30 MB)
Hydrocarbon China, November 2011. A Chinese version of a comparison of configurations for upgrading residual oil products for the maximum production of diesel by Arun Arora, Ujjal Mukherjee, Chevron Lummus Global.



Converting Low-Value Feed to High-Value Products (PDF: 1.17 MB)
Chemical Technology, April 2011. The toughest challenge facing refiners today is how to optimize the production of cleaner products from a broad range of feeds. Refiners tend to choose technologies that deliver higher conversion to lighter products and have fewer operating problems, regardless of feed quality. Contributed by Jan Steegstra, Chevron Lummus Global.



Refinery Configurations for Maximising Middle Distillates (PDF: 1.19 MB)
PTQ, Quarter Q3 2011. A comparison of configurations for upgrading residual oil products for the maximum production of diesel by Arun Arora and Ujjal Mukherjee, Chevron Lummus Global.


Outlook for 2011 (PDF: 978 KB)
PTQ, Quarter 1 2011. What are the important trends affecting the downstream processing industry this year? Executives and experts forecast challenges and prospects that could affect profitability. Among them, CLG’s Co-Managing Director Bharat Srinivasan presents his views.

2010



A Helping Hand (PDF: 2.26 MB)
Hydrocarbon Engineering, November 2010. L. R. Groeneveld, T. Maesen and D. Torchia, Chevron Lummus Global, focus on maximizing hydrocracker economics with proper catalyst selection.


Catalysts for Better Base Oils (PDF: 1.06 MB)
LUBES’n’GREASES Europe – Middle East – Africa, July/August 2010. Technology Providers Seek Higher Yields, More Feedstock Flexibility by Jay Rogers, Subhasis Bhattacharya, Guan-dao Lei and Kamala Krishna, Chevron Lummus Global.


Hydroprocessing Upgrades to Meet Changing Fuels Requirements (PDF: 4.25 MB)
Hydrocarbon China, Quarter 1 2010. 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.

2009



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.


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.

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.


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.



Hydrocracker Pretreat Catalyst Development (PDF: 269 KB)
Chinese Journal of Catalysis, August 2009. Jifei Jia, Bruce Yu, Theo Maesen, Cecelia Radlowski, Art Dahlberg, John Creighton, Dave Krenzke, Dan Torchia, Woody Shiflett, Chevron Lummus Global, USA, review the history of Chevron Technology Marketing’s hydrocracker pretreat catalyst development. The excellent hydrodenitrogenation (HDN) performance on recently developed catalysts is explained by the theory that more Type II active sites lead to better HDN/HDS (hydrodesulfurization) performance.

2007


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.


Consider Using Integrated Hydroprocessing Methods for Processing Clean Fuels (PDF: 650 KB)
Hydrocarbon Processing, September 2007. Art Dahlberg and Ujjal Mukherjee, Chevron Lummus Global, USA, and Charles Olsen, Advanced Refining Technologies, USA, discuss how new catalyst systems fine-tune cracking heavy refractory feeds for FCC and hydrocracking units.

2006



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.


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


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.


A New Generation of ISOCRACKING® Catalysts (PDF: 303 KB)
ERTC Annual Meeting Newspaper, 2005. L. de Bruyn, H. C. Timken, J. F. Mayer, A. J. Dahlberg, M. M. Habib, and T. Maesen, Chevron Lummus Global, USA, describe two of CLG’s latest, fifth generation catalysts: ICR 177 and ICR 178.