ARTICLES
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Apr-2013
A careful evaluation of the options for removing mercury from natural gas plant feed and product streams is a prudent exercise
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Treating high CO2 gases with MDEA
Apr-2009
Using MDEA as a solvent for high levels of CO2 removal requires careful process modelling using accurate simulation
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Gases: identifying hazards and mitigating risks
Feb-2012
Although critical for the operation of refineries and petrochemical plants, industrial gases can be associated with a spectrum of possible hazards and ...
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Processing NH3 acid gas in a sulphur recovery unit
Apr-2010
The feasability and economics of a two-stage sour water stripper with an SRU for NH3 contents of 25% and higher are discussed
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Controlling the dew point of natural gas
Jul-2015
Meeting water and hydrocarbon dew point specifications for natural gas without acid gas components
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Mercury treatment options for natural gas plants
Jan-2014
Removing mercury as close as is practicable to the front end of a natural gas processing system is the best choice
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Sour water stripping Part 2: phenolic water
Aug-2014
In addition to ammonia, hydrogen sulphide, and carbon dioxide, phenolic sour water may contain a host of so-called heat stable salts (HSSs), hydrogen cyanide, ...
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Using physical solvent in multiple applications
Apr-2012
A physical solvent’s properties and versatility in a variety of flow schemes for energy-efficient gas treating in a range of applications are discus ...
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Detecting and dealing with hydrate formation
Apr-2010
A review of cause, detection and treatment of hydrate plug formation in gas pipelines. Gas hydrates are solid crystalline compounds, which have a structure ...
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Sour water stripping Part 3: waste water treatment
Sep-2014
Mass transfer rate-based simulation is used in a case study to examine two of the important factors that determine the performance of a 2-Stage Chevron ...
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Conversion of natural gas to liquid fuels
Apr-2009
Companies aiming to bring gas to liquids projects to the commercial stage have encountered variable success
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Controlling corrosion in amine treatment units
Apr-2011
A range of measures can be taken to minimise corrosion in amine units. The amine unit plays a vital role in the petroleum refining, gas processing, coal ...
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Sour water stripping Part 1: non-phenolic water
Aug-2014
Most non-phenolic sour water strippers for removing ammonia and hydrogen sulphide from are built with 30 to 60 trays and are usually designed using equilibrium ...
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Controlling the hydrocarbon dew point of pipeline gas
Jul-2017
A key factor in selecting technology to control the hydrocarbon dew point of natural gas is the quantity of heavy hydrocarbons in the feed stream
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Options for CO2 capture from SMR
Oct-2014
As CO2 capture from steam methane reforming becomes increasingly important, the economics of retrofit for recovery from process gas streams need to be ...
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Solutions for the treatment of highly sour gases
Apr-2012
Process technologies for the cost-effective treatment of natural gas with high and ultra-high acid gas content
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Removing salts and contaminants in glycol regeneration
Apr-2014
A new process combining candle filters and pressure plate filters enables more glycol to be safely recovered from natural gas than by conventional met ...
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Alternative routes to paraxylene production
Apr-2004
An integrated refining and petrochemical approach to paraxylene manufacture from various feedstocks, such as excess aromatics in reformate or pyrolysis ...
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The role of tail gas treating unit quench towers
Jun-2016
A quench tower cools gas entering a tail gas amine unit but also protects the amine against SO2 breakthrough.
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Sour water: where it comes from and how to handle it
Sep-2011
Sour water strippers are common in gas processing facilities, sulphur recovery units, wellhead facilities, and refinery applications. Understanding the ...
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Control of foaming in amine systems
Sep-2007
Amine solutions foam. Solution foaming causes plant upsets. It is the disengagement or break time that differentiates normal, desirable froth from undesirable ...
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Feb-2007
Why there is no excuse for operating a dirty amine system. The benefits of reclaiming amine systems are trumpeted by many and doubted by others.
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Valuable liquids from refinery gases
Oct-2012
With appropriate treatment schemes, refinery off-gases can be valuable sources of olefins and hydrogen
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Enhanced sulphur recovery from lean acid gases containing COS and mercaptans
Apr-2010
Claus configurations are available for more effective sulphur recovery from lean acid gas containing significant concentrations of organic sulphur com ...
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Amine plant corrosion reduced by removal of bicine
Jun-2012
Bicine, an amino acid, has been found in numerous amine gas treating systems including tail gas treating units, certain refinery services, and some natural ...
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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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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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Making sense of amine absorber temperature profiles
Apr-2017
Simulation is a powerful tool for ensuring designs are robust, operating conditions are optimal, and troubleshooting can be effectively and efficiently ...
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Gases: identifying hazards and mitigating risks
Feb-2012
Although critical for the operation of refineries and petrochemical plants, industrial gases can be associated with a spectrum of possible hazards and ...
-
Processing NH3 acid gas in a sulphur recovery unit
Apr-2010
The feasability and economics of a two-stage sour water stripper with an SRU for NH3 contents of 25% and higher are discussed
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Start-up and shutdown issues in sulphur processing
Nov-2020
Knowing the limitations of the sulphur unit and what may occur during start-ups and shutdowns helps to prevent damage.
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Importance of heat maintenance in sulphur recovery units
Mar-2016
While sulphur recovery in an SRU depends on the condensation and removal of elemental sulphur, its unintended condensation and accumulation can present ...
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Controlling the dew point of natural gas
Jul-2015
Meeting water and hydrocarbon dew point specifications for natural gas without acid gas components
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Controlling corrosion in amine treatment units
Apr-2011
A range of measures can be taken to minimise corrosion in amine units. The amine unit plays a vital role in the petroleum refining, gas processing, coal ...
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Detecting and dealing with hydrate formation
Apr-2010
A review of cause, detection and treatment of hydrate plug formation in gas pipelines. Gas hydrates are solid crystalline compounds, which have a structure ...
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Simulation of Claus unit performance
Nov-2019
Simulating a sulphur recovery unit using a fundamental approach enables the effects of process changes on a host of performance metrics to be reliably ...
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Acid gas treatment upgrade for Qatargas
Jul-2016
Upgrading acid gas treatment at the world’s largest LNG facility safeguards the plant’s design capacity and its ability to process increasingly sour ...
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Simplifying hydrogen production
Jun-2017
Catalyst systems developed for the purification and reforming sections of the hydrogen plant target significant barriers to efficient production.
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Accuracy of measured lean amine H2S loading
May-2018
When solvent regeneration is done robustly the most accurate assessment of lean loadings can be by simulation rather than by measurement.
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Direct oxidation sulphur recovery process for very lean acid gas applications
Jun-2016
Due to higher demand in desulphurisation and new environmental regulations, Companies need to find robust and efficient technologies while considering ...
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The role of tail gas treating unit quench towers
Jun-2016
A quench tower cools gas entering a tail gas amine unit but also protects the amine against SO2 breakthrough.
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Developments in H2S scavenging
Jun-2018
Advances in the application of triazine scavengers have significantly improved process efficiencies.
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Sour water stripping Part 1: non-phenolic water
Aug-2014
Most non-phenolic sour water strippers for removing ammonia and hydrogen sulphide from are built with 30 to 60 trays and are usually designed using equilibrium ...
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Pricing licences for gas processing units
Mar-2021
How technologies can be selected on the best licensing terms.
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Sour water stripping Part 3: waste water treatment
Sep-2014
Mass transfer rate-based simulation is used in a case study to examine two of the important factors that determine the performance of a 2-Stage Chevron ...
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Sour water stripping Part 2: phenolic water
Aug-2014
In addition to ammonia, hydrogen sulphide, and carbon dioxide, phenolic sour water may contain a host of so-called heat stable salts (HSSs), hydrogen cyanide, ...
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Integrated design for gas processing
Oct-2016
An integrated approach to designing process line-up delivers a range of economic, process and environmental benefits.
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Technology selection for a natural gas plant
May-2019
Selecting equipment for a sulphur block requires balancing technical performance and costs, as well as local conditions and regulations.
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Ammonia destruction in the reaction furnace
Nov-2016
A study based on reaction fundamentals aids a comparison of the advantages of one-zone and two-zone SRU reaction furnace design in ammonia destruction ...
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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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Mar-2021
A process for wet scrubbing off-gases from the SRU helps preserve neighbourly relations.
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Trends and developments in gas analysis
Mar-2021
Technical and digital developments are modernising the way gas analysers are built and used.
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Pricing licences for gas processing units
Mar-2021
How technologies can be selected on the best licensing terms.
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Our desalting rate drops away quickly when we use heavier feeds. What is the problem here?
Feb-2021
Responses to a question in the Q1 2021 issues Q&A Feature
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Feb-2021
Responses to a question in the Q1 2021 issues Q&A feature
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Feb-2021
Responses to a question in the Q1 2021 issues Q&A Feature
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Start-up and shutdown issues in sulphur processing
Nov-2020
Knowing the limitations of the sulphur unit and what may occur during start-ups and shutdowns helps to prevent damage.
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Digitalisation for improved operations
Nov-2020
Increased availability of gas analysis equipment through digital transformation can raise levels of operational excellence.
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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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Jul-2020
Expanding the capacity of sulphur recovery and tail gas units requires a thorough review of all plant systems.
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Efficiency factors in natural gas fired steam boilers
Jul-2020
A study to obtain maximum operating efficiency from a set of refinery steam boilers.
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Amine cleaning in gas treating
Jul-2020
Effective amine cleaning requires a three-step filtration system
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Contamination in gas compression: causes, effects, and solutions
Jul-2020
Identifying and quantifying contaminants including solids, dissolved species, and liquids is essential in the design of a more reliable compression sy ...
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Jul-2020
Associated gas can be an important component of future fuel supplies if new gathering pipelines and tighter regulations come into play.
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Gas analysis in petrochemical production
Jun-2020
Accurate gas analysis is critical in the production of PTA. Purified terephthalic acid (PTA) is, together with ethylene glycol, a key component in the ...
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May-2020
What do you do with the gas associated with crude oil production if there is no local processing capacity and no gas gathering network to collect and deliver ...
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Simulation of Claus unit performance
Nov-2019
Simulating a sulphur recovery unit using a fundamental approach enables the effects of process changes on a host of performance metrics to be reliably ...
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Gas analysis in a hot climate (TIA)
Nov-2019
Servomex has developed a customised combustion monitoring solution to meet the specific challenges faced by a global petrochemicals producer.
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Catalyst responds to cold flow challenges (TIA)
Nov-2019
A Greek refiner needed to expand exports of automotive diesel oil beyond the saturated market in Greece.
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Revamping an air separation unit
Nov-2019
Revamp of a high pressure column with structured packing, reducing operating costs and avoiding discharging finished products to atmosphere.
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Laser based analysis for thermal incinerators
Nov-2019
An analyser design based on a tunable diode laser aims for more reliable and cost-effective combustion measurement in sulphur removal operations
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Claus waste heat boiler economics Part 2: mechanical considerations
May-2019
The design of a cost effective waste heat boiler faces many, often opposing factors affecting the performance and reliability of the exchanger.
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Technology selection for a natural gas plant
May-2019
Selecting equipment for a sulphur block requires balancing technical performance and costs, as well as local conditions and regulations.
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How DEA affects CO2 removal by Hot Pot
Apr-2019
In ammonia production, CO2 removal from synthesis gas is an important processing operation.
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Claus waste heat boiler economics Part 1: process considerations
Feb-2019
The design of the waste heat boiler has a critical role to play in determining process operations, reliability and economic performance in the sulphur ...
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