ARTICLES
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Hydrocracker revamp for Grangemouth refinery
Jul-1998
BP Oil’s Grangemouth refinery has completed an extensive revamp of its hydrocracker and FCC, reducing production of fuel oil and upgrading to middle ...
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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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Jan-2006
How much CO2 can a refinery release into the atmosphere? This is one of the many challenges facing refineries when it comes to reducing CO2 emmisions
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Hydrogen - the key refinery enabler
Aug-2012
In the 21st century, the term “scraping the bottom of the barrel” has become quite literal to the refining industry and hydrogen comes to the fore ...
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Developments in hydrotreating catalyst
Sep-2016
How a second generation hydrotreating catalyst was developed for high pressure ultra-low sulphur diesel units and hydrocracker pretreaters.
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Reducing hydrogen consumption in diesel hydrotreating
Sep-2018
Fractionating a raw diesel stream before hydrotreating reduces consumption of hydrogen to produce high quality diesel.
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Starting up hydrotreating units with cracked feeds
Jan-2013
A catalyst sulphiding process enables the introduction of cracked or heavy feeds to HDS units without the recommended three-day delay following change ...
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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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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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Jan-2013
Poor-quality crude oils and strict environmental regulations promote the use of technologies that favour energy savings and environmental protection
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Improving cold flow in diesel fuel
Feb-2021
Hydrotreating arrangements that overcome challenges to diesel’s cold flow properties meet current specifications more economically than blending and ...
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Optimising middle distillate production in a hydrocracker
Apr-2017
How to maximise middle distillate production and assure product quality from a range of hydrocracking catalysts and processing schemes.
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Feb-2006
The integration of Isocracking/Isodewaxing catalysts with process for the production of premium lubricant base oils by hydroprocessing is discussed
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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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Catalyst testing for hydrocracking and hydrotreating
Jan-2015
High throughput experimentation techniques enable performance testing of commercial catalysts with real feedstocks such as deasphalted oil
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Bayernoil mild hydrocracker CATnap application
May-2012
On 21 January, Bayernoil, Neustadt, successfully shut down the mild hydrocracker (MHC) using the CATnap catalyst passivation process applied by Cat Tech ...
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Heat integration projects for refining processes
Oct-2013
Heat integration projects can deliver substantial savings, but they require detailed simulation and case-specific heat integration analysis
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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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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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Towards a zero gasoline production refinery: part 2
Oct-2013
Refinery configurations can suit various processing objectives, such as variations to the propylene-to-ethylene ratio and production of middle distillates ...
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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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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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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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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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Dec-2016
Feed containing fines, in-organic matter, sludge, rust etc. can cause excessive pressure drop build-up issues in hydroprocessing reactors.
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The ART of trapping silicon and arsenic
Feb-2013
In an effort to lower costs and improve refining margins, refiners often look for opportunities to purchase lower cost crudes or other feedstocks
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Jan-2006
How much CO2 can a refinery release into the atmosphere? This is one of the many challenges facing refineries when it comes to reducing CO2 emmisions
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Simulating VGO, WLO, and WCO co-hydroprocessing: Part 2
Feb-2024
Economic analysis performed when co-hydroprocessing VGO, WLO, and WCO shows that WLO studied percentages increase hydrocracking unit net profits.
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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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Advances in residue hydrocracking
Mar-2018
Recent developments in ebullated bed hydrocracking technology target high residue conversion and high quality products.
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Dec-2016
Feed containing fines, in-organic matter, sludge, rust etc. can cause excessive pressure drop build-up issues in hydroprocessing reactors.
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Discovering hydrocracking units potential with pretreat and tailored hydrocracking catalysts
Sep-2021
A refiner uses pretreat and hydrocracking catalyst to maximise heavy naphtha, kerosene, and diesel production with improved product properties.
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Developments in hydrotreating catalyst
Sep-2016
How a second generation hydrotreating catalyst was developed for high pressure ultra-low sulphur diesel units and hydrocracker pretreaters.
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Hydrotreating challenges and opportunities with tight oil
Jan-2015
Tight oil’s contaminant and cold flow challenges require appropriate catalyst treatment systems
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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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Boosting hydrocracker heavy feed conversion
Apr-2020
New pore structure in nano-engineered zeolites helps to improve conversion efficiency of heavy molecules, improving product yields and qualities.
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Reactor effluent air cooler safety through design
Oct-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 ...
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Nov-2017
A line-up featuring ebullated bed hydrocracking delivers full conversion of bitumen, including production of premium diesel fuel
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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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Revamping a hydrocracker’s overhead condenser
Jul-2015
A stepwise approach solved seasonal issues affecting plans to increase a hydrocracker’s capacity
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Revamp cat feed hydrotreaters for flexible yields
Nov-2016
Revamping a cat feed hydrotreater to a flexible mild hydrocracker can be the most attractive economic option for adjusting the gasoline to diesel rati ...
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Improving cold flow in diesel fuel
Feb-2021
Hydrotreating arrangements that overcome challenges to diesel’s cold flow properties meet current specifications more economically than blending and ...
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Increasing profit in hydrocracking and diesel hydroprocessing
Jun-2021
A drop-in catalyst for hydrocracking pretreat and distillate hydrotreating raises activity with heat management savings.
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Reduce the carbon footprint of tail gas treating with reactivated catalysts
May-2023
Times have changed since catalytic processes were established.
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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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Hydroprocessing rate increase using shaped charges
Apr-2018
Catalyst size and shape are critical contributors to hydroprocessing reactor performance.
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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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Simulation of bitumen upgrading processes
Apr-2013
Two bitumen upgrading processes currently used in the Canadian oil sands industry were investigated using modelling and simulation techniques
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Reducing hydrogen consumption in diesel hydrotreating
Sep-2018
Fractionating a raw diesel stream before hydrotreating reduces consumption of hydrogen to produce high quality diesel.
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Catalytic distillation to enhance gasoline quality: Part II
Jul-1998
European regulations covering gasoline quality standards have moved on since Part I of this article. With further reductions in sulphur levels now likely, ...
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Increasing profit in hydrocracking and diesel hydroprocessing
Jun-2021
A drop-in catalyst for hydrocracking pretreat and distillate hydrotreating raises activity with heat management savings.
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Tail gas hydrotreating in a high H2S gas plant
Jun-2021
A tail gas hydrotreating catalyst delivers stable sulphur recovery operations, including low emission levels and energy savings, with a low rate of de ...
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Apr-2021
An alumina-supported catalyst for ULSD production or hydrocracking pretreat provides longer catalyst cycles, higher throughput, and better product qua ...
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Improving cold flow in diesel fuel
Feb-2021
Hydrotreating arrangements that overcome challenges to diesel’s cold flow properties meet current specifications more economically than blending and ...
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Feb-2021
Responses to a question in the Q1 2021 issues Q&A feature
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What type of catalyst do we need for low pressure hydrotreating of middle distillates?
Feb-2021
Responses to a question in the Q1 2021 issues Q&A Feature
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Increased flexibility and profitability from hydroprocessing catalyst
Jan-2021
Refiners have faced, and will continue to face, numerous external challenges from multiple fronts to maintain a profitable operation.
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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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Arkema develops new digital features for the sulphiding of hydroprocessing catalysts (ERTC)
Nov-2020
In 2020, Arkema successfully tested and implemented a digital environment that both eases and strengthens data communication with the refinery during the ...
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Oct-2020
Response to a question in the Q3 2020 issue of PTQ
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Making innovative catalysts to trigger a reaction in chemical, gas and refining processes
Aug-2020
When you are creating high-quality petrochemical end products, you must first trigger a reaction.
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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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Pilot plant studies of hydrotreating catalysts
May-2020
Studies of catalysts for hydrotreating lubricant base oil delivered similar results from conventional and high throughput pilot plants
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Interview with Dan Gillis, Director Technology at Chevron Lummus Global
May-2020
Entering China’s downstream market as a licensor, approaching potential clients at oil and gas events and switching to biofuels: Dan Gillis, Director, ...
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Boosting hydrocracker heavy feed conversion
Apr-2020
New pore structure in nano-engineered zeolites helps to improve conversion efficiency of heavy molecules, improving product yields and qualities.
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Developments in refining catalysts
Feb-2020
New catalyst technologies underpin increasing flexibility in refineries’ response to changes in demand for their output.
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Dec-2019
Respond To Market Conditions. As market conditions, regulations and technologies change, UOP continues to redefine the future of refining. We are helping ...
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Maximising crude value in base oil production
Nov-2019
Retrofitting a combination of all-hydroprocessing routes delivers lower capital and operating costs in the production of premium base oil stocks.
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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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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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Catalytic lube dewaxing defeats feed contamination (TIA)
Aug-2019
A base stock manufacturer was experiencing poor lube plant feed quality stemming from refinery equipment problems. The hydrocracker producing the feed ...
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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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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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Ways for refiners to capitalize on the benefits of ultra-high activity catalysts (TIA)
May-2019
ExxonMobil and Ketjen launched the first commercial Bulk Metal Catalyst in 2001. The commercialization of Nebula®* (Catalyst A) represented a wholein ...
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Technical collaboration triples NHT cycle length (TIA)
Apr-2019
A nine-month cycle once seemed like a victory. But with pressure drop still flat after 27 months, the engineers on a naphtha hydrotreater in the Texas ...
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