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Mar-2021
A process for wet scrubbing off-gases from the SRU helps preserve neighbourly relations.
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Pushing the limits of FCC gasoline desulphurisation
Jul-2016
The goal of FCC gasoline desulphurisation to desulphurise FCC gasoline with minimum octane loss. The process uses conventional naphtha hydrotreating and ...
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GSR the only proven FCC catalysts and additives for gasoline sulphur reduction
May-2015
Grace GSR® technologies: D-PriSM®, SuRCA®, and GSR® 5, are the result of nearly two decades of innovation. GSR has been used in over 100 FCC units ...
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A step change in tail gas treating unit performance at low cost with SCOT ULTRA
May-2017
Two projects helped a TGT unit to improve its operability and lower operating costs while meeting tough emission requirements.
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Optimising hydrogen sulphide scavenging
Jan-2014
Selecting the right hydrogen sulphide scavenger is important, but appropriate treatment setup and tailored monitoring procedures are key to avoiding o ...
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Dealing with depleting sour gas reserves: Part 1
Jul-2015
Depletion of sour gas production in western Canada means that gas plants will have to evaluate their sulphur recovery units for future turndown operat ...
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Revamping hydrogen and sulphur plants to meet future challenges
Oct-2009
Revamp opportunities for hydrogen and sulphur plant operations in the era of clean fuels production offer significant benefits for refiners
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Enhancing SRUs with oxygen-enriched air
Apr-2005
As clean fuels regulations become more stringent, refiners looking for new ways to boost the capacities of their existing sulphur-recovery units are turning ...
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May-2008
The Shell Claus Offgas Treating (SCOT) process has been developed to remove sulphur compounds from Claus tail gas to comply with even more stringent emission ...
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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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Improving reaction furnace performance with the Blasch VectorWall mixing checkerwall
Sep-2013
Operators of large refractory lined combustion chambers, whether used as primary reaction furnaces, thermal oxidisers in tail gas units or miscellaneous ...
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Extending the treatment of highly sour gases: part 1
Oct-2013
The removal of acid gas components from highly or super-sour gases requires the optimum choice of process
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Mar-2010
Near net shape refractory forming technology and its use to create significant process improvement. The vast majority of refractory, by volume, used in ...
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Challenges and opportunities of 10 ppm sulphur gasoline: part 2
Oct-2012
Economic evaluation of processing options for ultra-low sulphur gasoline compares severe pretreatment with a combination of pre- and post-treat soluti ...
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Treatment programme overcomes high TAN problems
Oct-2015
Processing high TAN crude with low sulphur shale oil presented challenging corrosion problems for a refiner.
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Optimise the route to emissions compliance
Aug-2017
Increasingly stringent SO2 emission regulations may demand smart and 
cost-effective alternatives to generic amine based tail gas treating units ...
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Next generation BRIM catalysts
Mar-2010
Five years following the launch of the first BRIM* technology, Haldor Topsoe recently commercialised the next generation BRIM catalysts made with improved ...
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Advanced sulphur analysis in hydrocarbons
Sep-2017
Petra MAX™ delivers advanced D4294 sulphur analysis in addition to 12 elements from P to Zn including Ca, Fe, K, Ni, and V at sub-ppm levels for various ...
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Renewable Identification Numbers, sulphur credit pricing and economics
Dec-2020
Renewable Identification Numbers (RINs) are credits used to certify compliance with the Renewable Fuel Standard (RFS) which requires certain minimum volumes ...
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Revamp options for improved diesel
Jan-2001
Integration of cocurrent and countercurrent reactor systems into existing hydrotreaters makes various revamp options possible, providing opportunities ...
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FCC additive technology for SOx reduction
Nov-2019
Advances in metal dispersion and structure delivered a SOx reduction additive that is driving down refiners’ FCC emission levels.
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Increasing resid processing flexibility
Sep-2018
A resid processing technology converts low value refinery streams to full range refinery products.
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Advances in HF acid alkylation conversion and expansion
Dec-2017
Recent technology developments offer economic conversion and expansion of HF acid alkylation units for sulphuric acid operation.
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Apr-2016
A sandwich catalyst system has given the additional activity needed to process difficult feed in a hydrotreater.
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Improvements to tailgas treatment process
Jul-2003
A review of configurations in tailgas treating to achieve 99.9% sulphur recovery with smaller reactors
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Renewable Identification Numbers, sulphur credit pricing and economics
Dec-2020
Renewable Identification Numbers (RINs) are credits used to certify compliance with the Renewable Fuel Standard (RFS) which requires certain minimum volumes ...
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Advances in catalyst sulphiding and passivation
Mar-2023
By continuously measuring H2S and hydrogen levels, online analysers provide real-time analysis of a hydrocracking reactor’s recycle gas and a data stream ...
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A recommended approach to managing your contaminated sulphur
Oct-2016
Contaminated sulphur clean-up can be a daunting task. It is natural to seek the cheapest and quickest methods of removal.
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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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Jan-2013
Issues that arise when transporting liquid sulphur away from the production site. It is a fairly common occurrence to see tank trucks or rail cars transporting ...
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Upgrading sulphur removal performance
Oct-2016
Reverse jet scrubbing enabled a refinery to bypass its upstream tail gas unit while still meeting sulphur removal targets
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Online chlorine analyser for crude oil and petroleum process streams
Jul-2017
Residual chlorine content in desalted crude oil streams can be a serious issue due to its highly corrosive nature. Online monitoring of chlorine has an ...
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Jan-2009
Design considerations for clean diesel hydrotreating. Critical issues are 
discussed when designing a hydrotreating facility to produce diesel fuel ...
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Optimising hydrogen sulphide scavenging
Jan-2014
Selecting the right hydrogen sulphide scavenger is important, but appropriate treatment setup and tailored monitoring procedures are key to avoiding o ...
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Heat transfer systems in gas processing
Apr-2015
There are many aspects other than temperature to consider when selecting a high temperature heat transfer fluid for gas processing.
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Tier 3 gasoline from tight oil crudes
Jun-2017
Assessing process schemes to counter loss of gasoline road octane when the crude feed includes tight oil
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Get fast D4294 sulphur results without centrifuging
Feb-2019
Petroleum professionals looking to certify their products are commonly tied to specific method types for analysis.
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A few sweet tricks for sour gas
May-2014
Large volumes of acid gas (H2S and SO2-rich gas) are generated from various technologies used to sweeten sour off-gases, or acid gas.
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LO-CAT: a flexible hydrogen sulphide removal process
Feb-2015
The hydrocarbon engineering industry faces tighter restrictions for hydrogen sulphide (H2S) emissions and expanding requirements for sulphur recovery. ...
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Advances in crude to chemicals
Apr-2021
In mature markets like the US, refineries are revisiting their business models, asset base and technology options. This is due to regional and global changes ...
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Modelling for ULSD optimisation
Apr-2011
On-line coordination and optimisation of refinery process units led to a 10% increase in middle distillate production
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Fast turnaround for a SRU tail gas scrubber
Oct-2011
Reuse of groundwork and equipment, as well as previous experience in meeting permitting regulations enabled an 18-week turnaround of a tail gas scrubb ...
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GSR the only proven FCC catalysts and additives for gasoline sulphur reduction
May-2015
Grace GSR® technologies: D-PriSM®, SuRCA®, and GSR® 5, are the result of nearly two decades of innovation. GSR has been used in over 100 FCC units ...
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Future fuel - the challenges associated with renewable diesel hydrotreating
May-2016
As a consequence of the general concern about fossil fuel resources and global warming from CO2 emissions, the use of alternative, sustainable sources ...
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Ultra low sulfur analysis in liquid petroleum products using MWD XRF
Dec-2016
The U.S. Environmental Protection Agency (EPA) recently enacted new, lower sulphur level requirements in gasoline through the Tier 3 rule, part of a comprehensive ...
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Avoid sulphur measurement bias from particulate settling in crude oil
Oct-2017
Petra MAX™ delivers advanced D4294 sulphur analysis in addition to 12 elements from P to Zn including Ni, V, and Fe.
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Dynamic column simulation delivers reduced relief load
Jan-2018
Dynamic modelling of a gasoline hydrodesulphurisation column simulates the column relief profile during power failure
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FCC additive technology for SOx reduction
Nov-2019
Advances in metal dispersion and structure delivered a SOx reduction additive that is driving down refiners’ FCC emission levels.
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Implementing advanced technologies for crude to chemicals projects (ERTC)
Dec-2019
According to the IEA, already a major component of the global energy system, the importance of petrochemicals is continuing to grow.
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Proactively preventing reactor runaway events
Aug-2023
A quantitative method for selecting emergency actions could prevent hydrocracker reactor temperature excursion and runaway while avoiding flaring.
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Newly completed sulfur project at SAMREF refinery
Mar-2018
Case study of newly completed sulphur project at SAMREF refinery. SAMREF (Saudi Aramco ExxonMobil Refinery) recently completed the design and successful ...
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Dealing with hydrogenation catalyst poisons
Mar-2018
For stable operation of a pyrolysis gasoline unit, it is crucial to know the effects of poisons and inhibitors on catalyst performance and how to counteract ...
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Producing ultra low sulphur gasoline with octane retention
Mar-2018
A drop-in catalyst enabled refiners to meet ultra low sulphur gasoline requirements with more severe feedstocks while retaining octane barrels
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Challenges in producing BS-VI diesel
Mar-2018
An Indian refiner describes the technical challenges of meeting a leap in
fuel quality specification. -
Three ways to effectively monitor total chlorine in liquid hydrocarbons
Feb-2018
Corrosion at petroleum refineries is a critical problem all over the world. In the United States alone, NACE International, a professional association ...
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SOx and NOx emission abatement in the FCC
Feb-2018
The complexities of sulphur and nitrogen species formation in the FCC call for tailor made catalyst additive chemistry to limit formation of polluting ...
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Ultra low sulphur analysis in liquid petroleum using MWDXRF
Jan-2018
Tougher regulations are challenging refiners to produce higher quality products while trying to maximise efficiency.
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Dynamic column simulation delivers reduced relief load
Jan-2018
Dynamic modelling of a gasoline hydrodesulphurisation column simulates the column relief profile during power failure
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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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Advances in HF acid alkylation conversion and expansion
Dec-2017
Recent technology developments offer economic conversion and expansion of HF acid alkylation units for sulphuric acid operation.
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Meeting emission targets with potential savings
Nov-2017
New solvent and catalyst technologies deliver a step change in tail gas treating performance for green- and brownfield sites.
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Key steps for refiners ahead of IMO 2020 (ERTC)
Nov-2017
The reality is that many refiners remain unprepared for IMO MARPOL 73/78 Annex VI (IMO 2020). These regulations, which will substantially tighten the global ...
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High-efficiency filtration extends SRU cycle length (ERTC)
Nov-2017
At a facility in the heart of Western Europe, engineers had all but resigned to their fate: every 60 days, they would have to 
take down a whole ...
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Refiners respond to challenge (ERTC)
Nov-2017
It seems that only yesterday European refiners were facing catastrophic decline. With three million barrels of annual capacity taken off-line in the years ...
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Accurate, real-time H2S measurement achieved with in-line analyser (ERTC)
Nov-2017
Arkema, in keeping with its policy of innovation, introduces an additional service to its current Carelflex service that helps refiners to perform the ...
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Avoid sulphur measurement bias from particulate settling in crude oil
Oct-2017
Petra MAX™ delivers advanced D4294 sulphur analysis in addition to 12 elements from P to Zn including Ni, V, and Fe.
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Compact modular sulphur recovery solutions
Oct-2017
Prosernat has been awarded a contract for the delivery of modular Sulphur Recovery Units (SRUs) for an Early Production Facility (EPF) project in Middle ...
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Advanced sulphur analysis in hydrocarbons
Sep-2017
Petra MAX™ delivers advanced D4294 sulphur analysis in addition to 12 elements from P to Zn including Ca, Fe, K, Ni, and V at sub-ppm levels for various ...
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FCC gasoline desulphurisation for Tier 3 sulphur compliance
Sep-2017
FCC gasoline desulphurisation is used widely in refineries around the world. It is growing in importance because of new regulations that require sulphur ...
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Unlocking the potential of existing gas processing assets through solvent swaps
Aug-2017
Given the global challenges of investing in new gas-processing capital projects, unlocking the potential of existing operating facilities through selective ...
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Optimise the route to emissions compliance
Aug-2017
Increasingly stringent SO2 emission regulations may demand smart and 
cost-effective alternatives to generic amine based tail gas treating units ...
-
Online chlorine analyser for crude oil and petroleum process streams
Jul-2017
Residual chlorine content in desalted crude oil streams can be a serious issue due to its highly corrosive nature. Online monitoring of chlorine has an ...
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APC in a mild hydrocracker fractionator
Jul-2017
Advanced process control of a mild hydrocracker can save millions of dollars annually by maximising kerosene and/or diesel
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Flexible thinking for capital projects
Jun-2017
Conventional project planning and execution may not be the best approach for gas treating and sulphur recovery installations.
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Improving sulphur plant performance
Jun-2017
Strict attention to utilities is critical to ensure safe and reliable sulphur recovery unit operation