Comparison of ideal stage and mass transfer models for separation processes

Apr-2012

The design and optimisation of separation processes is carried out using process simulators that utilise various calculation approaches. Two techniques ...

Reflux in a gas dehydration plant

Oct-2014

Gas dehydration by adsorbent processes may lead to the damaging regeneration reflux phenomenon during adsorbent regeneration

Efficient membrane systems for natural gas dehydration

Sep-2018

Applications of membrane technology for reducing water content in natural gas to meet pipeline specifications.

Low temperature SCOT Catalyst 
pays off

Dec-2004

Jacobs Nederland B.V. demonstrates how new improvements in low temperature catalysts have boosted the Shell Claus Offgas treating (SCOT) process

New developments in acid gas removal

Jun-2015

One of the challenges when designing a natural gas treatment plant is to optimize the combination of the acid gas removal (AGR) unit and the sulphur recovery ...

Gasoline production in the age of shale oil, renewable fuel mandates, and tier 3 regulations

Apr-2014

The North American shale oil production surge has provided North American refiners with a seemingly bounty of high quality crudes.

Enhanced sulphur recovery from lean acid gases

Apr-2011

A preferred acid gas enrichment scheme is combined with two gas-treating schemes to examine the lifecycle cost of a sour natural gas treatment facilit ...

Modelling ethane absorption in 
MEA solution

Jun-2018

Solving foaming problems related to absorption of hydrocarbon and feed contaminants by amine solution.

Predicting corrosion rates in amine and sour water systems

May-2014

A chemistry-based predictive model predicts corrosion rates in specific processing conditions. Corrosion is a ubiquitous problem in gas treating in the ...

Troubleshooting tail gas amine treaters

Oct-2007

Simulation of a tail gas-treating unit contaminated with sodium and heat-stable salt anions. Comparisons are made between plant performance data and the ...

Catalytic oxygen removal from coal mine methane

Apr-2009

A catalytic combustion process for oxygen removal enables maximum production of sales gas from an unconventional source of methane

How glycols affect acid gas removal

Oct-2013

How to control the amine unit’s full acid gas capture performance over time and so avoid operational surprises involving glycol build-up

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 ...

An optimum line-up for sour gas processing

Apr-2010

Analysis of technical, economic and licensing considerations in the selection of an optimum gas treating line-up recommends a choice of technologies

Structured packing in a CO2 absorber

Oct-2014

Solvent regeneration is the biggest energy consumer in an amine treating unit but efforts to minimise energy consumption should be made cautiously

Combining acid gas treating and amine tail gas treating (TIA)

Oct-2015

One of the challenges in designing a natural gas treatment plant is to optimise the combination of the acid gas removal (AGR) unit and the sulphur recovery ...

Analysis and prediction of hydrocarbon dew points and liquids in gas transmission lines

Mar-2006

The occurrence of liquid hydrocarbons in natural gas transmission lines has increased in recent years as a result of the shrinking price spread between ...

Glycol dehydration of high-acid gas streams

Apr-2011

A model based on mass and heat transfer closely predicts plant performance data for glycol dehydration of high-acid gas streams

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 ...

Pricing licences for gas processing units

Mar-2021

How technologies can be selected on the best licensing terms.

Regenerable tail gas treatment

Nov-2016

Cost assessment of tail gas treating technologies that recycle H2S or SO2 to the Claus unit.

Getting the most out of syngas

May-2021

Optimise production and effectively remove CO2 from syngas with the right separation equipment.

Simulation of the Benfield HiPure process of natural gas sweetening for LNG production

Apr-2013

Achieving specifications given by customers, including pipeline-operating companies, LNG storage facilities, and gas-processing plants requires the removal ...

Composition variety complicates processing plans for US shale gas

Oct-2008

This article reviews which gas processing technologies are appropriate for the variety of US shale gas qualities being produced and planned to be prod ...

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

Sulphur recovery from lean 
sour gas streams

Nov-2013

Gas streams are often treated with amine or membrane systems to meet specifications before the gas can be sent to a pipeline or used in a fuel gas system. ...

Unload the SRU to reduce plugging problems and operating costs

May-2015

A crude oil refinery may need additional sulphur recovery capacity for any of a combination of reasons:

Feed conditioning technologies for gas processing plants

Jan-2019

Recent contactor developments remove soluble gas phase contaminants from the feed gas stream.

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

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.

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 ...

Corrosion and corrosion enhancers in amine systems

Apr-2005

Corrosion in alkanolamine gas treating solutions begins with the acid gases, which are the target of the treating, and is enhanced by several physical ...

Troubleshooting tail gas amine treaters

Oct-2007

Simulation of a tail gas-treating unit contaminated with sodium and heat-stable salt anions. Comparisons are made between plant performance data and the ...

Estimating gas hydrate inhibitor loss: 
a case study

Apr-2011

A predictive tool is used to understand and predict the loss of methanol during natural gas hydrate inhibition

Combating the threat of mercury

Mar-2012

Emerging legally binding action on mercury emissions highlights the importance of monitoring and quantifying emissions from gas operations

Retrofitting a glycol contactor to 
prevent carryover

Oct-2013

A revamp of glycol contactor column internals, following CFD studies, resolved problems with gas production caused by glycol carryover

How glycols affect acid gas removal

Oct-2013

How to control the amine unit’s full acid gas capture performance over time and so avoid operational surprises involving glycol build-up

Tail gas catalyst performance: part 1

Jul-2014

The first part of a two-part account of time and temperature effects on tail gas catalyst performance provides a background to reaction modelling and pilot ...

Less is more: how a dividing wall column maximises LPG recovery

Oct-2014

Maximising LPG recovery from fuel gas using a dividing wall column. Refiners have a challenge to recover LPG from mixed fuel gas streams due to the difficulty ...

Progress in tail gas treatment (TIA)

Oct-2016

The requirement to meet ultra-low SO2 emission standards, even lower than World Bank limits, is becoming more and more prevalent for new natural gas developments ...

Optimal processing scheme for producing pipeline quality gas

Feb-2017

Exploring processing line-ups for optimal design of sour gas processing plants. The gas processing plant must be a ‘fit-for-purpose’ design, meeting ...

Efficient membrane systems for natural gas dehydration

Sep-2018

Applications of membrane technology for reducing water content in natural gas to meet pipeline specifications.

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 ...

Reduce the carbon footprint of tail gas treating with reactivated catalysts

May-2023

Times have changed since catalytic processes were established.

Modelling to optimise natural gas dehydration

Apr-2009

Computer modelling can help processors to understand the severity of conditions in molecular sieves used for the dehydration of natural gas

Cracking hydrocarbon feedstock with a heavy tail

Mar-2013

The introduction of a vapour/liquid separation step allows for the efficient removal of a heavy tail from the furnace convection section

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

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 ...

Getting the most out of syngas

May-2021

Optimise production and effectively remove CO2 from syngas with the right separation equipment.

Spent caustic treatment and reuse

Sep-2023

Advances in environmentally friendly technologies, such as spent caustic treatment technologies, are key to the industry’s transition towards environmental ...