ARTICLES
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Spent sulphuric acid regeneration (SAR) process
May-2012
Several chemical processes utilise concentrated sulphuric acid as a catalyst or dehydrating agent, in which the acid becomes “spent”; ie, weakened ...
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Catalytic reforming options and practices
Apr-2010
Design and practice in catalytic reforming is evolving to meet refinery challenges, including lower gasoline pool benzene content and increased demand ...
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Jan-2008
Highly exothermic olefins saturation and silica contamination can occur when hydrotreating coker naphtha.
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Apr-2003
A review of the use of chloride guard beds to treat liquid phase and gas phase streams to prevent operational problems from hard-to-detect organic chlorides, ...
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Understanding FCC feeds and benefits to refinery operation
Apr-2015
In this work, over one hundred FCC feed samples, originating from diverse geographic locations and consisting of assorted FCC refinery streams, were a ...
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Mar-2012
The source of a fouling problem in a FCC CO boiler was identified by systematic analysis of fresh catalysts, additives and equilibrium catalysts
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Mercury removal in hydrocarbon streams
Mar-2009
The presence of mercury in refinery hydrocarbon streams results in detrimental effects, including catalyst poisoning, corriosion and safety issues
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Jul-2013
A simulation model compares accurately with actual operating data to provide reliable predictions of catalyst lifetime in naphtha reforming
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Chloride removal in refineries
Mar-2011
A review of catalytic removal of chlorides from refinery streams and a critique of current analytical techniques for estimating chloride content
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Residue desulphurisation and conversion
Apr-2006
The current market forces that presage a boom in resid hydrotreatment are examined along with recently reported progress in technology
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Meeting Euro IV fuel specifications
Jan-2006
Pretreating technology and special catalysts can help refiners meet the current and forthcoming European environmental regulations and improve their FCCU ...
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HCN emissions in fluid catalytic cracking
Apr-2013
Increased attention to refinery emissions of hydrogen cyanide requires detailed understanding of its formation and conversion in the FCC regenerator
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Choosing a selective hydrogenation system
Oct-2002
Data has shown the effectiveness of palladium catalyst for the removal of diolefins and acetylenes in steam cracking as well as catalytic cracking
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Minimising FCC slurry exchanger fouling
Jan-2008
A case study shows when to expect reductions in slurry / FCC preheat exchanger duty from a variety of factors, including organic and inorganic-based f ...
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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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Maximising premium distillate by catalytic dewaxing
Feb-2011
Advances in technology for catalytic dewaxing of distillates by isomerisation provide improved activity
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Refinery fuel gas in steam reforming hydrogen plants
Mar-2012
Fuel gas is an attractive feedstock for hydrogen production, but appropriate catalysts and temperature control are needed to address high olefin le ...
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Dealing with mercury in refinery processes
Jul-2010
The effects of mercury contamination on operations, and its treatment, are emerging issues for refiners
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Process improvements in the direct hydration of olefins to alcohols
May-2014
Synthetic alcohols produced by direct hydration have wide application in the process industries as solvents, in the production of cosmetics and as intermediates ...
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Opportunities for increasing on-demand light cycle oil
Oct-2009
Swift response to demand for higher LCO yields from the FCCU may involve optimising variable parameters and employing a bottoms cracking additive
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Advances in methanol synthesis
Mar-2010
Catalysts with higher and more stable activity enable cost savings and boost output in methanol production
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Catalyst catastrophes in hydrogen plants
Jan-2006
Processing mishaps can occur if catalyst is placed in abnormal conditions. These catastrophes include temperature runaways, the formation of toxic nickel ...
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The FCC unit as a propylene source
Jul-2007
Hardware and catalyst design changes can increase the propylene yield, but ZSM-5 and other additives are essential to optimise and retain the flexibility ...
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Understanding cloud point and hydrotreating relationships
Feb-2013
As the distillate markets allow for increased distribution worldwide, refiners need to be more aware of the additional product specifications that can ...
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Zeolite based dryers in ethylene plants
Apr-2014
A review of the role and nature of adsorbent dryers in the production of ethylene by steam cracking. Steam cracking represents more than 95% of ethylene ...
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Fifty years of CCR platforming
Jan-2021
Professionals in the oil and gas industry today may not remember when gasoline was sold in multiple grades that included fuels containing tetraethyl l ...
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Refinery’s performance confirms catalyst testing
Jun-2021
Commercial results from a naphtha reformer are a close match with data from micro-pilot plant tests.
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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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Jan-2008
Highly exothermic olefins saturation and silica contamination can occur when hydrotreating coker naphtha.
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Reducing NOx emissions from an FCC unit (TIA)
Aug-2018
Refinery processes account for a considerable share of the overall emissions of air pollutants in Europe. The Industrial Emissions Directive (IED) is the ...
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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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What is sintering in relation to catalyst deactivation and how can it be avoided? (PTQ Q&A)
Oct-2020
Response to a question in the Q3 2020 issue of PTQ
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Evaluating quickly deactivating catalytic systems (TIA)
Nov-2018
Avantium provides contract research services for high throughput catalysis R&D. For some years now, Avantium has been helping refineries select the best ...
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Automating catalyst evaluation (TIA)
Nov-2019
Accurate evaluation of catalysts performance is an important step in optimising catalytic refinery processes with respect to product yields, run length, ...
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Pre-reformer catalyst in a hydrogen plant
Apr-2020
Good operation following recommended practice with technical support highlight the successful performance of a pre-reformer catalyst.
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On-demand propylene from naphtha
Jun-2017
A new catalytic process targets economic production of propylene from naphtha at relatively low capital and operating costs
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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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Apr-2017
Detailed catalyst data collected over 15 years reveal shifts in FCC yields in response to changing market conditions, and provide a marker for future unit ...
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Zeolite based dryers in ethylene plants
Apr-2014
A review of the role and nature of adsorbent dryers in the production of ethylene by steam cracking. Steam cracking represents more than 95% of ethylene ...
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Catalytic strategies to meet gasoline sulphur limits
Apr-2015
Stricter regulations reducing average gasoline sulphur content will require further reduction of FCC gasoline sulphur
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The future for hydrocracking: part 1
Nov-2017
Hydrocracking technology faces challenges and opportunities amid diesel emission scandals, low sulphur marine fuels, and the growing position of electric ...
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Interpreting FCC equilibrium catalyst data
Apr-2018
Regular Ecat and fines analysis provides information to support optimum performance from the FCC.
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Understanding FCC feeds and benefits to refinery operation
Apr-2015
In this work, over one hundred FCC feed samples, originating from diverse geographic locations and consisting of assorted FCC refinery streams, were a ...
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HS-FCC for propylene: concept to commercial operation
Oct-2016
A FCC process provides a high light olefin yield from a wide variety of feedstocks utilising high severity reaction conditions and a novel down flow reaction ...
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Mar-2012
The source of a fouling problem in a FCC CO boiler was identified by systematic analysis of fresh catalysts, additives and equilibrium catalysts
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Spent sulphuric acid regeneration (SAR) process
May-2012
Several chemical processes utilise concentrated sulphuric acid as a catalyst or dehydrating agent, in which the acid becomes “spent”; ie, weakened ...
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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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Catalytic answer to a steam cracking challenge
Apr-2021
Rapid growth in steam cracker capacity has encountered a developing problem – contamination of opportunity naphtha feed by carbon disulphide.
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Development of paraffin hydrocarbons isomerisation processes
Aug-2021
The background of the paraffin hydrocarbons isomerisation processes is inextricably connected with different types of catalysts.
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Impact of chlorides on fluid catalytic cracking
Aug-2021
Fluid catalytic cracking (FCC) is an important conversion process in many refineries. It produces transportation fuels, including gasoline and diesel precursors, ...
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Sulphur spiking agents for hydroprocessing units activation (ERTC)
Dec-2021
The hydroprocessing process employs catalysts in which the active species are molybdenum or tungsten sulphides promoted by cobalt or nickel sulphides. ...
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Isomalk - moving forward ahead of global trends
Dec-2021
Changes in trends in the world and regional markets of motor fuels are sometimes completely unpredictable. A few years ago, it seemed that the development ...
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How rhenium in spent precious metals bearing process catalysts can prove a hidden asset
Dec-2021
Hydrocarbon processing catalysts typically include one or more precious metals such as platinum, palladium, ruthenium, and rhodium (commonly referred to ...
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Dec-2021
The impact of increasing carbon and coke in spent precious metals catalysts.
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Aiming the challenges of the future
Dec-2021
Based in the south Russia Krasnodar innovative chemical technology company - Scientific Industrial Enterprise (SIE) Neftehim LLC is one of Russia’s hundred ...
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Key considerations for design and operation of a renewable diesel unit
Nov-2021
Design of the process configuration and operation of the unit are fundamental aspects in the production of renewable diesel. dstocks include vegetable ...
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Managing ammonium salts corrosion and fouling
Nov-2021
An additive overcame corrosion and fouling issues in a FCC unit, avoiding costs arising from water wash.
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Modelling and optimising bitumen hydrocracking
Nov-2021
A rigorous hydrocracking model for the quoted catalysts is used for predicting hydrogen consumption and product yields to maximise operating revenues.
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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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FCC petrochemicals production at minimum capex
Nov-2021
Adapting FCC gas concentration unit design using dividing wall technology delivers high purity petrochemicals at significantly lower capital cost.
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Nov-2021
Co-processing biogenic feedstocks offers refiners options for meeting renewable fuel standards and other regulatory requirements.
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Improved SOx reduction in partial burn FCC
Nov-2021
Refinery applications of a new additive demonstrate improved SOx reduction performance in partial burn FCC operation
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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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Renewable Identification Numbers (RINs) and refining profitability
Aug-2021
Renewable Identification Numbers (rins) are credits used to certify compliance with the Renewable Fuel Standard which requires certain minimum volumes ...
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Impact of chlorides on fluid catalytic cracking
Aug-2021
Fluid catalytic cracking (FCC) is an important conversion process in many refineries. It produces transportation fuels, including gasoline and diesel precursors, ...
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Development of paraffin hydrocarbons isomerisation processes
Aug-2021
The background of the paraffin hydrocarbons isomerisation processes is inextricably connected with different types of catalysts.
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Maximising yields and profits from the FCC unit
Aug-2021
Comparative additive trials demonstrated a gain in petrochemicals output and profit from an integrated refinery’s FCC unit.
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FCC SOx additives and security of supply
Jun-2021
Rare earth prices could accelerate again as a result of trade tensions.
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Selecting catalysts for marine fuels production
Jun-2021
Accelerated activity and stability testing of hydrotreating catalysts.
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Refinery’s performance confirms catalyst testing
Jun-2021
Commercial results from a naphtha reformer are a close match with data from micro-pilot plant tests.
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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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Catalyst switch solves NOx removal issues
Jun-2021
Changing to a corrugated honeycomb design from a pellet type for catalytic NOx reduction of a furnace’s flue gas stream overcame a series of operational ...
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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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Process and catalysis factors to maximise propylene output
May-2021
Catalyst selection and process design enable a new RFCC unit to maximise propylene production from a range of feeds.
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Increased propylene from heavier residues
May-2021
A specially developed catalyst enables a refiner to raise propylene selectivity from heavier feeds at maximum feed rate.
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