Abstract
Carbon dioxide is one of the main concern in the environment when it comes to energy usage of fuel, even the fuel is coming from natural gas sources. Apart from endangered the environment, carbon dioxide also affects the caloric value of the natural gas itself. The presence of carbon dioxide as contaminants is a nuisance for oil and gas industry as its capability of forming corrosion in pipeline, thus its removal is vital for this industry. The absorption of carbon dioxide in emulsions would be an effective method to prevent corrosion. This study focused on the effects of cosurfactant, complementing 1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC) with surfactant which is sorbitan oleate (SPAN 80), on the stability of water-in-oil (W/O) emulsion. This study also investigates the use of blended amines which are methyldiethanolamine (MDEA)/2-amino-2-methyl-1-propanol (AMP) and MDEA as aqueous phase. A modified rotating disk contactor (RDC) was used in absorption process and gas chromatography (GC) was used to determine the amount of the CO2 absorbed. Analysis of carbon dioxide absorption through emulsion indicates that different cosurfactant may change the absorption mechanism.
Highlights
The usage of fossil fuel as a source of energy for worldwide has made an impact to environment. This is due to burning of fossil fuel and releasing a large amounts of carbon dioxide produced annually in various industries
The absorption of CO2 in W/O emulsion will focus on the effect of surfactant in the stability of emulsion and the rate of removal of CO2
To prepare the aqueous phase, MDEA and AMP was mixed in a beaker with 0.1 M NaOH solution. 4 g of NaOH pellet was dissolved in 1 L of water
Summary
The usage of fossil fuel as a source of energy for worldwide has made an impact to environment. The absorption of CO2 in W/O emulsion will focus on the effect of surfactant in the stability of emulsion and the rate of removal of CO2. Adhesive emulsion was introduced in the separation process where the particles of the adhesive components are equal in size with emulsion components (the liquid vehicle for carrier throughout which the adhesive components are dispersed) This feature will give the adhesive a continuous surface and creates stronger initial and ultimate adhesion (as there is a larger surface area over which the adhesive bond can form) [6]. Adhesive emulsion was considered in this study to evaluate the separation process of CO2 from gas mixture This adhesive emulsion was stabilized by 1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC) which typically unstable because of its molecular structure. The focus is to formulate a stable emulsion using DOPC with cosurfactant, Span 80 and to investigate the percentage of absorption of CO2 gas using adhesive emulsion
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