Innovative method to prepare a stable emulsion liquid membrane for high CO 2 absorption and its performance evaluation for a natural gas feed in a rotating disk contactor

Bhatti, Inamullah; Qureshi, Khadija; Kamarudin, Khairul Anuar; Bazmi, Aqeel Ahmed; Bhutto, Abdul Waheed; Ahmad, Faizan; Lee, Moonyong

doi:10.1016/j.jngse.2016.07.013

Cited by 11 publications

(4 citation statements)

References 82 publications

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“…An emulsion was prepared according to a method described by Bhatti et al [13] using different types of amines. The aqueous phase consists of amines in NaOH solution as extractant, while the organic phase consists of kerosene as continuous phase and Span 80 as surfactant.…”

Section: Emulsion Preparationmentioning

confidence: 99%

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The Effect of MDEA/AMP and Span-80 in Water-in-Oil (W/O) Emulsion for Carbon Dioxide Absorption

Najib

Kamaruddin²,

Rashid³

et al. 2022

AMST

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Emulsion liquid membrane (ELM) has been widely studied as an alternative method for amine absorption technology in the removal of acid gases such as carbon dioxide (CO2) and hydrogen sulphide (H2S). However, searching for stable ELM formulation with an enhanced CO2 absorption remains as challenge. Therefore, in this study, the aqueous solution containing a mixture of methyl diethanolamine (MDEA) and 2-amino-2-methyl-1-propanol (AMP) in sodium hydroxide (NaOH) solution was introduced as a dispersed phase, kerosene as continuous phase and Span-80 acts as a surfactant for the formation of water-in-oil (W/O) emulsion. In this study, the dispersed phase consists of 8% v/v MDEA and 4% v/v AMP and the continuous phase which contains 6% v/v Span-80 produced a stable emulsion and exhibited 65.2% of CO2 removal. This study indicates that the introduction of blended amine able to produce stable emulsion with an enhanced CO2 removal.

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Section: Emulsion Preparationmentioning

confidence: 99%

“…Longer contact time was achieved as the CO2 enters the column from the bottom of the column. The schematic diagram for CO 2 absorption system [13] The Effect of MDEA/AMP and Span-80 in Water-in-Oil Emulsion for CO2 21…”

Section: Co 2 Absorptionmentioning

confidence: 99%

The Effect of MDEA/AMP and Span-80 in Water-in-Oil (W/O) Emulsion for Carbon Dioxide Absorption

Najib

Kamaruddin²,

Rashid³

et al. 2022

AMST

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“…One of the most important factors affecting the membrane stability and extraction efficiency in the ELM process is the mixing rate and the intensity of the turbulence in the external phase, which directly affects the mass transfer of solute in the system [74]. Proper stirring should be able to disperse the emulsions into separated droplets throughout the external phase and create a uniform distribution of the emulsified cells.…”

Section: Effect Of W/o/w Emulsion Stirring Speedmentioning

confidence: 99%

Investigation of experimental results and D-optimal design of hafnium ion extraction from aqueous system using emulsion liquid membrane technique

2020

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Hafnium metal is used in a wide range of industries such as microprocessor manufacturing, nuclear reactors and special alloys due to its physical, chemical and radiation properties. Emulsion liquid membrane (ELM) is an effective and efficient alternative for heavy metal separation compared to conventional methods due to high selectivity, energy-saving, high mass transfer and low operating capital. In this study, Cyanex 572 as a carrier, Span 85 as a surfactant, hydrochloric acid as an internal phase and kerosene as a diluent were used. In the first part of the study, the stability of the emulsions was investigated. The most stable emulsions were obtained by adding PIB polymer (3% w/v), Span 85 surfactant (3% w/v) and stirring for 15 min. In the second part, the separation of hafnium metal ions from aqueous solutions was investigated using ELM technique. The highest separation was obtained at 4% (v/v) as carrier concentration, 4% (w/v) as surfactant concentration, the membrane-to-feed volume ratio of 20/100 and W/O/W emulsion stirring rate and time equal to 400 rpm and 5 min, respectively. Moreover, to optimize the factors influencing the tests, the design of experiment (DOE) was performed using D-optimal method via Design Expert 10 software. Based on DOE results, the maximum extraction (> 99%) was achieved when the carrier concentration, the surfactant concentration, W/O/W emulsion stirring time, W/O/W emulsion stirring rate and emulsion volume/feed phase ratio were 4.49% v/v, 3.90% w/v, 11.49 min, 310.54 rpm and 2:1, respectively.

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“…An oil-in-water emulsion dispersed in oil (O/W/O) or a water-in-oil emulsion dispersed in an aqueous phase (W/O/W) are two main paradigms of three phase dispersion in ELM systems. According to Ho [12] , the diameter of the emulsion globules is generally 0.1-2.0 mm which is quite larger than the diameter of internal phase droplets measuring approximately 1-10 µm. Extraction of any solute with ELMs system usually ends up with the demulsification (breakup) of emulsion in order to reclaim the internal phase comprising of the targeted solute.…”

Section: T 525mentioning

confidence: 99%

Parametric Study of Rupture Analysis for the Optimization of Stable Emulsion Liquid Membrane using DOE Approach

Jamshaid

Bhatti

Qureshi

et al. 2020

Mehran Univ. res. j. eng. technol.

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Rupture of the membrane is considered as one of the most critical characteristics while working on wastewater treatment via emulsion liquid membrane. This paper presents a decisive study of different parameters affecting the rupture of membrane. The potential parameters which are investigated in this study include, surfactant dosage, surfactant concentration, concentration of aqueous phase, emulsification velocity, ratio of organic to aqueous phases and ratio of membrane to feed phases. The Design of Experiment (DOE) approach was used to design the experiments and the results were analyzed statistically through a software Minitab-18. The study revealed that amongst all these parameters, two are the highly significant playing a crucial role in rupture of the membrane. These significant parameters are emulsification velocity and ratio of the organic to aqueous phase. Pareto chart being used as an effective statistical tool implied that the emulsification velocity and ratio of the organic to aqueous phase have negative and positive effects on the response respectively. Using the Response Optimizer tool, the optimum levels of all the potential parameters were statistically calculated followed by an experimental verification resulting a least minimum rupture of 36%. A statistical model was developed in this study and the values of predicted rupture were compared with the experimental results. The calculated correlation coefficient R2 of the developed model was 0.998 and the accuracy of correlation coefficient deduced that the developed model of rupture will precisely calculate the rupture over the range of values.

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Innovative method to prepare a stable emulsion liquid membrane for high CO 2 absorption and its performance evaluation for a natural gas feed in a rotating disk contactor

Cited by 11 publications

References 82 publications

The Effect of MDEA/AMP and Span-80 in Water-in-Oil (W/O) Emulsion for Carbon Dioxide Absorption

The Effect of MDEA/AMP and Span-80 in Water-in-Oil (W/O) Emulsion for Carbon Dioxide Absorption

Investigation of experimental results and D-optimal design of hafnium ion extraction from aqueous system using emulsion liquid membrane technique

Parametric Study of Rupture Analysis for the Optimization of Stable Emulsion Liquid Membrane using DOE Approach

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