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Designing and engineering catalysts for hydrotreating
May-2017
Advanced analytical and experimental techniques combine in the development of a new hydrotreating catalyst.
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Oil sands-derived feed processing
Jul-2013
Processing crudes derived from oil sands requires a good understanding of the facility, and of the sources and processing requirements of the available ...
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Tar sands oil upgrading technology
Apr-2008
Technology for processing heavy crudes and bitumen-derived materials such as synthetic crude oil are examined, along with the challenges they present to ...
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545DX: higher performance with a new NiMo catalyst for ULSD
Feb-2013
Advanced Refining Technologies continues to expand its line of ultra-high-activity DX Catalyst Series in response to refiners’ demands for superior technology ...
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Improvements to increase fuel capacity and quality
Oct-2002
By using staged technology upgrades, fuels production at the Jiddah refinery was expanded and quality improved, meeting market and regulatory criteria
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ULSD production at low pressure
Feb-2005
A large number of existing diesel hydrotreaters are operated at pressures below 30 bar. The catalyst used for production of ULSD in these hydrotreaters ...
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Improved heat recovery from a hydrotreater
Apr-2012
A Russian refinery aimed to reduce the load on a hydrotreater’s fired heater by increasing the performance of the feed/effluent exchanger
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Maximising ULSD with cracked feedstocks
Feb-2008
Balancing hydrogen consumption can give flexibility when processing cracked feedstocks
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Advanced catalyst characterisation for improved hydrocracking performance
Nov-2018
Advanced analytical techniques delivered new insights into catalyst structure and manufacturing leading to improved performance material.
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Fine-tuning for maximum diesel (TIA)
Apr-2015
Sweden’s largest refiner, Preem AB, expects optimum performance from all elements of its refinery, which is one of the most modern in Europe.
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Leveraging hydrocracking to upgrade low value streams
Aug-2017
Flexible design of hydrocracking catalyst systems enables maximum conversion of lower value feed streams into more valuable liquid products.
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Maximising the diesel yield from hydrocracking (TIA)
Oct-2016
The hydrocracker is one of the most proï¬table units in refineries, partly due to the volume swell, and partly because it converts heavy feedstocks ...
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Revamping an integrated hydrocracker and lube base oil unit
Dec-2020
Process and catalytic advances enabled large-scale expansion of an integrated unit to increase fuels and base oil production.
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Refinery CO2 challenges: part IV
Oct-2006
The strategic energy review approach is summarised and results from recent studies conducted at a European refinery are discussed
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Securing fuel supply and reducing GHG emissions
Apr-2008
Six strategic options are available to refiners to satisfy future energy and environmental requirements in the light of surging oil prices and public concerns ...
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Hydrotreater revamps for ULSD fuel
Oct-2003
Scope and capital investment for revamping an existing diesel hydrotreater to meet the 15wppm sulphur standard. The base design is typical of hydrotreaters ...
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Recovering silicon poisoned catalyst
Nov-2021
Silicon poisoning usually spells the end for hydrotreating catalysts, but a rejuvenation process can extend the effective life of silicon trap catalys ...
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Residuum hydrocracking: chemistry and catalysis
Aug-2019
Significant advances have been made in understanding the hydrocracking chemistry of residuum oils and in the catalytic systems required for deep conversion ...
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Surviving the global economic and legislative tsunamis
Jul-2009
Changes and challenges are sweeping the refining industry into a new era. Primary processing units will remain essential, but their roles will change ...
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The age of turbulence: charting a course for refiners to a profitable future
Nov-2012
Relentless turbulence has profoundly affected the global refining landscape in recent years. Moreover, the turmoil is likely to continue unabated in the ...
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New catalysts for low and medium pressure hydrotreating
May-2019
A catalyst platform provides higher performance in middle distillate hydrotreating applications with limited hydrogen, difficult feedstocks and severe ...
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Enhancing flexibility in two-stage hydrocrackers
Aug-2022
Shifting markets and refined product priorities compels refiners to find the flexibility for shifting from middle distillate to naphtha for petrochemical ...
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Meeting low sulphur diesel challenges
Dec-2017
Liquid stream hydroprocessing technology enabled a refiner to meet fast-changing diesel sulphur specifications and process a wide variety of feedstock ...
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Jul-2019
Catalysts are tested in laboratory and pilot plant units for purposes of catalyst research, catalyst development, and catalyst selection. Hoekstra Trading™ ...
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Boosting mild hydrocracking performance
Aug-2020
Optimising its mild hydrocracking operations using new catalyst developments enabled a refinery to meet more complex targets for fuel quality.
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Oct-2007
The expanding market presence and the breakthrough of refiners into the biodiesel sector are discussed along with commercialised and emerging production ...
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Optimising hydroprocessing 
catalyst systems
Apr-2014
Flexibility in catalyst technology and processing tactics optimises hydrocracker and ULSD operations to meet diesel and gasoil production targets
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Increasing hydrocracker capacity at low cost
Jul-2000
Detailed case studies are presented, illustrating the planning and working methods that were followed in revamping the hydrocrackers at two refineries, ...
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Beating pressure drop with a trash baskets redesign
Jan-2001
Unscheduled turnarounds of hydrotreaters can be expensive in terms of catalyst and manpower costs, as well as the value of lost production
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Refinery CO2 challenges: part III
Jul-2006
For the prediction of CO2 emissions from a refinery, simple correlations are not always sufficient. A rigorous simulation tool that includes fractionation ...
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Securing fuel supply and reducing GHG emissions
Apr-2008
Six strategic options are available to refiners to satisfy future energy and environmental requirements in the light of surging oil prices and public concerns ...
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Improving VGO hydrotreater operation
Jan-2009
A practical, industrial data-derived tool can give refiners confidence in simulating the actual benefits of additional hydrogen for improved VGO hydrotreater ...
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Improving the production of renewable diesel by co-processing
Feb-2009
Haldor Topsøe A/S has developed a new process allowing Preem AB to co-process light gas oil and raw tall diesel (RTD), producing a renewable diesel ...
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Hydrocracker parametric sensitivity study
Apr-2009
Product yields and hydrogen consumption were predicted using a discreet lumping model. The model was used to study unit responses to changes in operating ...
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Next-generation BRIM catalyst technology
Jun-2009
The need for high-activity hydroprocessing catalysts continues, with US, European and Asian refiners already supplying their markets with ultra-low-sulphur ...
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Surviving the global economic and legislative tsunamis
Jul-2009
Changes and challenges are sweeping the refining industry into a new era. Primary processing units will remain essential, but their roles will change ...
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Eliminating inert entry for catalyst changeout (TIA)
Feb-2018
Since hydrocracking and hydrotreating catalyst were introduced to the refining industry in the mid-20th century, it has always been a struggle to safely ...
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Ways for refiners to capitalize on the benefits of ultra-high activity catalysts (TIA)
May-2019
ExxonMobil and Albemarle launched the first commercial Bulk Metal Catalyst in 2001. The commercialization of Nebula®* (Catalyst A) represented a wholein ...
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The origins and fates of chlorides in hydroprocessing units
Oct-2019
A step-by-step roadmap to identifying and managing the negative effects of chlorides in hydroprocessing units.
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Pretreatment of resid FCC feedstocks
Jul-2004
How a refinery optimised hydrogen consumption to raise API “shift”, enhancing FCC economics. The effect of heavy feedstock reactivity on the operation ...
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NPRA 2012 Q&A and technology forum, hydroprocessing cracked materials
Oct-2012
What are the operating constraints in co-processing coker naphtha in a ULSD and/or gas oil hydrotreater unit?
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FCC feed preparation for improved quality
Apr-1997
The benefits of hydrotreating heavy gas oil FCC feedstocks at different levels of severity are discussed in this article, particularly the operating success ...
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Converting VGO HDS units to moderate pressure hydrocracking
Jul-1997
An introduction to the technology of MAK Moderate Pressure Hydrocracking (MPHC), together with details of a successful revamp at the Chiba refinery of ...
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Performance optimisation of fixed bed processes
Apr-1999
An extensive range of hydroprocessing technologies has been developed through a combination of long-term R&D commitment and commercial experience
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Refinery CO2 challenges: part II
Apr-2006
CO2 emissions and hydrogen production costs in hydrogen plants. Understanding how the impact of unit configuration, operating conditions, feed type, fuel ...
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Optimised reactor internals for a hydroprocessing unit
Apr-2012
Optimised distributor and quench box design can improve catalyst performance and unit reliability
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Oct-2012
Serbia’s petroleum refinery describes its plans for a continuing programme of plant revamps and updates
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Thermodynamic model of sediment deposition in the LC-Fining process
Apr-2008
The LC-Fining ebullated bed hydrocracking process is used to hydrocrack residuum. In this process, sediment deposition in the downstream equipment sometimes ...
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Improved reactor internals for HGO hydrotreaters
Oct-2000
Reactor internals of a plant’s heavy gasoil hydroprocessing units, which became inadequate for the operations they were originally designed for, have ...
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Getting the maximum from hydroprocessing reactors
Oct-2001
Recent advances in hydrotreater catalyst formulations mean that, with careful attention to distributor design and other mass transfer improvements, it ...
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Optimise hydrocracker operations for maximum distillates
Apr-2012
Estimation of an accurate operating window for a hydrocracker enables refiners to minimise yields of light ends and maximise diesel production
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Improved heat recovery from a hydrotreater
Apr-2012
A Russian refinery aimed to reduce the load on a hydrotreater’s fired heater by increasing the performance of the feed/effluent exchanger
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Optimised reactor internals for a hydroprocessing unit
Apr-2012
Optimised distributor and quench box design can improve catalyst performance and unit reliability
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Developing and enabling the next generation of refinery process engineers
Apr-2012
Changing viewpoints of engineering as a career path, generational priorities and global competition are affecting the ability of refiners and petrochemical ...
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Estimating silicon accumulation in coker naphtha hydrotreaters
Mar-2012
Improved sampling and analysis of silicon in the feed enable a significant gain in the cycle life of coker naphtha hydrotreater catalysts
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Decrease catalyst costs by regeneration, analysis and sorting
Mar-2012
Use of regenerated catalyst can be maximised by careful sampling and analysis of spent catalyst to construct a reactor contamination profile
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Optimising and revamping a refinery hydrogen network
Oct-2011
Pinch analysis and mathematical programming support hydrogen network 
design and retrofit. An increased demand for hydrogen often makes the supply ...
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Future of opportunity crudes processing
Oct-2011
Five critical drivers help refiners remain profitable and sustain long-term business goals while processing relatively inexpensive, low-quality crudes
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Gasoline and diesel imbalances in the Atlantic Basin: part II
Oct-2011
Options to re-orientate a refinery’s production towards middle distillates. European refineries currently produce a surplus of gasoline and insufficient ...
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Diesel hydrotreating and mild hydrocracking
Oct-2011
Increased hydroprocessing capability must provide an acceptable long-term return on capital, while producing the desired product yields and qualities
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Comparison of thermal cracking and hydrocracking yield distributions
Sep-2011
Obtaining the maximum performance from existing residua upgrading equipment is achieved by maximum asset utilisation.
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Improving residue hydrocracking performance
Jul-2011
Trials with a catalyst system for enhanced transfer of hydrogen to asphaltenes show reduced sediment formation and fouling in ebullated-bed residue hy ...
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Residue conversion options to meet marine fuel regulations
Jul-2010
Slurry hydrocracking to match demand for lower-sulphur marine fuel oils and to maintain distillate production targets
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Hydrotreating in the production of green diesel
Apr-2010
A novel scheme enables co-processing of light gas oil and tall diesel to produce a renewable diesel meeting EN 590 specifications
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Ring-shaped catalysts make the grade
Feb-2010
Shape-optimised topping materials, together with ring-shaped hydroprocessing catalyst, provide a solution for units that are pressure drop limited
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Choosing quench interbed technology
Jan-2010
A design for hydroprocessing interbed internals favours separate mixing of gas and liquid phases before contacting of the two phases occurs
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Choosing a hydroprocessing scheme
Jan-2010
A systematic approach to selecting hydroprocessing technology meets process objectives with optimal operating and capital costs
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Dec-2009
An integrator saves time and expense with new ball valves and end connections for pressures up to 15 000 psig.
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Flexible solutions for increased 
diesel production
Oct-2009
Distillation changes and optimised hydroprocessing units represent a broad range of technical and economic options for increasing production of diesel
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Hydroprocessing upgrades to meet changing fuels requirements
Oct-2009
Adapting installed hydroprocessing units through a variety of schemes enables refiners to shift their fuels slates to meet changing demand and specifi ...
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Surviving the global economic and legislative tsunamis
Jul-2009
Changes and challenges are sweeping the refining industry into a new era. Primary processing units will remain essential, but their roles will change ...
-
Next-generation BRIM catalyst technology
Jun-2009
The need for high-activity hydroprocessing catalysts continues, with US, European and Asian refiners already supplying their markets with ultra-low-sulphur ...
-
Hydrocracker parametric sensitivity study
Apr-2009
Product yields and hydrogen consumption were predicted using a discreet lumping model. The model was used to study unit responses to changes in operating ...
-
Improving the production of renewable diesel by co-processing
Feb-2009
Haldor Topsøe A/S has developed a new process allowing Preem AB to co-process light gas oil and raw tall diesel (RTD), producing a renewable diesel ...
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Hydrocracking and hydrotreating developments
Jan-2009
Current emphasis on middle distillate production requires the expansion of hydroprocessing capabilities affecting reactor and catalyst design. Increased ...