ARTICLES
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Understanding basic principles of flow calculations
Mar-2008
Valve size often is described by the nominal size of the end connections, but a more important measure is the flow that the valve can provide.
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Managing fouling in refinery networks
Jul-2015
Modelling heat exchanger and other networks enables the use of dynamic fouling models in performance assessment and predictive studies
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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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Processing high TAN crude: part I
Jan-2010
Huizhou, which is the first refinery for processing 100% high TAN crude, started up in 2009. This article describes the challenges of an opportunity crude ...
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Hydrogen generation for modern refineries
Jan-2009
With increasing demand for diesel, more stringent product specifications for cleaner fuels, reduced fuel oil demand and the economic advantages in processing ...
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Sour water strippers: design and operation
Apr-2013
Simpler, more cost-effective sour water stripper designs can outperform more generally accepted designs in the refining industry
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Naphtha catalytic cracking for propylene production
Mar-2013
Investment in on-purpose propylene production technology based on naphtha-based feedstock is taking on various process configurations
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Gasifying coke to produce hydrogen in refineries
Jul-2012
Coke gasification to produce hydrogen for hydroprocessing is more capital intensive than steam methane reforming, but not so vulnerable to natural gas ...
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A novel approach to cleaning furnace coils
Jul-2013
A modified pigging operation aims to greatly reduce the time required for coke removal from furnace coils
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High-purity propylene from refinery LPG
Apr-2012
A case study and financial analysis show that investment opportunities for refiners exist with the expected future high price of propylene
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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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Oil/water separation technologies
Apr-2013
Where stable emulsions cannot be removed mechanically, the application of demulsifiers, coagulants and flocculants accelerates the separation process
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Understanding centrifugal compressor performance
Apr-2002
In a connected process system, expensive changes to the compressor and driver can be avoided with system debottlenecking modifications
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Optimising sweep gas flow in a flare header
Oct-2012
How to calculate the minimum flow of flare header sweep gas needed to maintain safe conditions
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Calculating column relief loads
Apr-2010
Conventional, steady-state and dynamic simulation techniques are compared in a study of relief loads for failure modes applied to a distillation colum ...
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Improved hydrogen yield in catalytic reforming
Jan-2013
A process step that sends higher-boiling C6 hydrocarbons to light tops isomerisation delivers an increase in hydrogen production from naphtha catalytic ...
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Metathesis for maximum propylene
Apr-2006
Using metathesis technology to process refinery-based C4 feedstocks can maximise propylene. The economic advantages of flow schemes using alpha-olefins ...
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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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Centrifugal compressor operations
Jul-2004
The wet gas compressor is used as an example in this article reviewing compressor performance, operating conditions and basic control philosophy
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Alarm floods and plant incidents
Jul-2012
Alarm floods and their contribution to industrial incidents can be controlled successfully through all process states
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Choosing a neutralising amine corrosion inhibitor
Jul-2004
A review of physical and chemical properties of commonly used amine-based corrosion inhibitors. The authors highlight the relative strengths and weaknesses ...
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Crude overhead system design considerations
Jul-2007
Proper crude unit overhead system design is important when building a new unit or revamping an existing one to process different crudes
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RFCC units set new standard for propylene production
Oct-2012
RFCC units are being commissioned and operated to convert hydrotreated and straight-run resid to high levels of propylene
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Seismic design of structural steel pipe racks
Nov-2011
Structural steel pipe racks are structures in petrochemical, chemical and power plants that support pipes, power cables and instrument cable trays. Occasionally, ...
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More petrochemicals with less capital spending
Sep-2020
Even in nations with exceptional dependence on transportation fuels like Brazil, better integration with petrochemicals production is essential for re ...
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Managing fouling in refinery networks
Jul-2015
Modelling heat exchanger and other networks enables the use of dynamic fouling models in performance assessment and predictive studies
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Experimental phase balance assessment for duplex stainless steel welded pipe
Jan-2018
This paper discusses the assessment of weld metal ferrite content in duplex stainless steel pipe welded at a 45˚angle
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Delayed coking as a sustainable refinery solution
Jun-2021
Fuel grade coke is a serious environmental pollutant but the producer, the delayed coking process, can be a contributor to future sustainable development ...
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Delek brings refineries into synchronised digital maturity
Jul-2020
Since the company was founded in the early 2000s, the business strategy at Delek US Holdings, Inc. has focused on rapid growth through acquisition of downstream ...
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Computation of heat conduction in welding of thick wall reactor vessels
Sep-2017
The welding of reactors in refinery is complex due to various phase formation during and after welding. Each phase was unique with success of welding lies ...
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CCS from refinery emissions: CO2 purity must be analysed and controlled
Jun-2020
One of the most promising measures to decarbonise refinery operations is carbon capture and storage (CCS) from existing combustion processes, such as process ...
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IMO 2020 - Maritime CEMS and refinery changes
May-2020
For several years, the International Maritime Organisation (IMO) has stipulated low levels of sulphur emissions close to densely populated coastal areas, ...
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Hydrogen SMR energy efficiency optimisation
May-2020
Steam methane reformers (SMR) are the most common hydrogen production technique in the oil and gas industry.
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Environmental monitoring and management in the downstream oil and gas sector
Apr-2020
Keeping it clean, keeping it green. Ground water, rain water run-off and effluent. Contaminated soil replacement in spillage areas, excavated soil disposal ...
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Hydrogen – making the move from industrial gas to fuel
May-2020
Our sun creates energy through the fusion reaction of hydrogen to form helium: that’s been going on for millions of years.
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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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Improved hydrogen yield in catalytic reforming
Jan-2013
A process step that sends higher-boiling C6 hydrocarbons to light tops isomerisation delivers an increase in hydrogen production from naphtha catalytic ...
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Molecular management for refinery-petrochemical complexes
Aug-2020
Designing a digital twin for process simulation of an integrated complex enables enhanced molecular management to deliver higher margin.The future comprises ...
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Steam reforming natural gas containing higher hydrocarbons
Apr-2013
A method is described for estimating reformed gas composition in a primary reformer when the feed is a natural gas containing higher hydrocarbons
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Modelling ethane absorption in MEA solution
Jun-2018
Solving foaming problems related to absorption of hydrocarbon and feed contaminants by amine solution.
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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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Nov-2020
The global climate change and the needed GHG emission reduction, as well as increasing awareness of the circular economy have pushed towards thinking about ...
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Neutralising amine selection for crude units
Jun-2021
Making a proper selection of neutralising amine chemistry is a challenging task.
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Minimise amine losses in gas and liquid treating
Jun-2018
Even with incomplete information, a systematic approach can be used to identify the source of amine losses and the action needed to reduce them.
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Jan-2008
Highly exothermic olefins saturation and silica contamination can occur when hydrotreating coker naphtha.
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A novel approach to cleaning furnace coils
Jul-2013
A modified pigging operation aims to greatly reduce the time required for coke removal from furnace coils
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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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Jun-2017
There is a good economic case for petcoke slurry as a refinery fuel, but first you need to deal with the rheology
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Fresh look at accelerating electrification and the role that thermal plays
Sep-2021
(White Paper) - The goals of the 2015 Paris Agreement are now playing out, with companies and governments making drastic changes to hit its ambitious targets. ...
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Discovering hydrocracking units potential with pretreat and tailored hydrocracking catalysts
Sep-2021
(White Paper) - A refiner uses pretreat and hydrocracking catalyst to maximise heavy naphtha, kerosene, and diesel production with improved product properties. ...
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Predicting process performance through an online platform
Sep-2021
(White Paper) - Digitalisation has potential benefits across the oil and gas value chain. The InFocus™ Online Platform allows ExxonMobil Catalyst and ...
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Isomalk-3 and Isomalk-3R in production of light paraffin hydrocarbons
Sep-2021
One of the main trends in the oil refining and petrochemical world market in recent years has become an increase in the environmental friendliness of high-octane ...
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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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Improve profit with augmented digital twins
Aug-2021
Artificial intelligence and machine learning deliver greater, more sustainable value from simulation models.
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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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Maximising stripping section performance
Aug-2021
The design of a crude unit stripping section affects diesel and gasoil yields, energy usage, and unit reliability.
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Sulphidation corrosion in a claus waste heat boiler
Aug-2021
Simulation enabled a refiner to avoid potentially dangerous operating conditions in a sulphur recovery unit.
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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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Upgrading a vacuum distillation tower (TIA)
Aug-2021
When a major oil refinery in India was constrained by its vacuum tower, it turned to Sulzer Chemtech to find a solution that would not only solve existing ...
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Multi-phase project enables switch to heavier crude (TIA)
Aug-2021
In recent years, deasphalted oil (DAO) hydrocracking has emerged as a highly attractive investment option, principally because it provides the opportunity ...
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De-mystifying alarm management standards
Jul-2021
What is Alarm Management? Definition of Alarm Management. The EEMUA 191 definition of Alarm Management is “The processes and practices for determining, ...
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Carbon dioxide emissions from fired heaters
Jun-2021
Fired heaters emit an estimated 400 to 500 million tons of carbon dioxide (CO2) every year. At least 73% of average refinery CO2 emissions come from c ...
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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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Energy network monitoring and optimisation
Jun-2021
A software program for optimisation of an energy network supports decisions on equipment use in refineries that produce and import power.
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Designing steam heat exchangers and tracing systems
Jun-2021
Fundamentals must be considered when designing an industrial steam system to avoid premature failure or under-performance.
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Selecting catalysts for marine fuels production
Jun-2021
Accelerated activity and stability testing of hydrotreating catalysts.
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Jun-2021
Upgraded crude scheduling enabled a refiner to increase its use of opportunity crudes for higher margin.
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Neutralising amine selection for crude units
Jun-2021
Making a proper selection of neutralising amine chemistry is a challenging task.
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Delayed coking as a sustainable refinery solution
Jun-2021
Fuel grade coke is a serious environmental pollutant but the producer, the delayed coking process, can be a contributor to future sustainable development ...
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Protecting your hydroprocessing reactor
Jun-2021
Owners and operators respect a hydroprocessing reactor’s minimum pressurisation temperature but can fail to understand factors other than the temper ...
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Dividing wall revamp boosts octane and throughput
Jun-2021
Dividing wall column technology reduces energy and capex, but increasingly contributes to higher revenues from better products, as in this application ...
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Delivering drop-in renewable fuels
Jun-2021
A series of pretreatment, hydrotreating, and distillation steps converts fresh or used lipid based feedstocks to full range, drop-in renewable fuels.
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Boosting tube-side heat transfer
Jun-2021
Tube insert technologies can improve heat exchanger performance by enhancing tube-side heat transfer coefficients in two-phase applications.
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Fresh look at accelerating electrification and the role that thermal plays
Sep-2021
(White Paper) - The goals of the 2015 Paris Agreement are now playing out, with companies and governments making drastic changes to hit its ambitious targets. ...
-
Discovering hydrocracking units potential with pretreat and tailored hydrocracking catalysts
Sep-2021
(White Paper) - A refiner uses pretreat and hydrocracking catalyst to maximise heavy naphtha, kerosene, and diesel production with improved product properties. ...
-
Predicting process performance through an online platform
Sep-2021
(White Paper) - Digitalisation has potential benefits across the oil and gas value chain. The InFocus™ Online Platform allows ExxonMobil Catalyst and ...
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