Modeling And Simulation Of Carbon Dioxide Absorption Into Promoted MDEA Solution At Industrial Packed Column

Ali, Duaa Abdelmonem Amin (2016) Modeling And Simulation Of Carbon Dioxide Absorption Into Promoted MDEA Solution At Industrial Packed Column. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

The global warming caused by increasing emission of carbon dioxide is one of the most serious environmental problems. Following the 1997 Kyoto Protocol, the European Union has set a goal of 20% reduction of COemission by the year 2020. In order to meet this target, a significant reduction of CO release from fossil fuel fired thermal power plants, will be required. Therefore, removal of carbon dioxide from flue gases is a key measure to reduce CO emission. Chemical absorption is the most practical and effective technique and is widely used in chemical and petrochemical industry and well suited for CO capture for industrial applications. A suitable solvent for CO absorption must be properly selected in the capture process, since the solvent affects equipment sizing and operating costs. MDEA as a solvent has been favored in the past few years because of its many advantages over other amines. However, the main disadvantage of this solvent is its slow reaction rate with CO for this reason; an activator with a very high reaction rate with CO must be added. Potassium glycinate which has distinguishing feature of fast reaction kinetics present a suitable promoter and can act as an enhancer for MDEA when reacting with CO. Process simulation is an essential tool for the study of chemical processes because of its ability to predict process performance with adjustments in key parameters, hence bypassing expensive and time-consuming testing or experiments in pilot plants. Many researchers have simulated the CO absorption from power plants and chemical processes through literature.Following the work of previous researchers, in this research a mathematical model of reactive absorption of into promoted MDEA with piperazine at packed column has been created. Validation of the created mathematical model has been done on actual data of absorber in an existing natural gas sweetening process in Thailand called Acid Gas Removal Unit (AGRU).which is also using a solvent MDEA and piperazine as a promoter the obtained error is 3.723%. The second part of this study is developing a simulation model with an amino acid promoter, potassium glycinate, instead of piperazine in the same gas feed condition and column configurations. the influence of various operating variables such as potassium glycinate concentration, solvent feed flow rate, feed temperature of both gas and liquid stream, and finally the pressure of the absorber on absorptive capability have been examined theoretically

Item Type: Thesis (Masters)
Additional Information: RTK 660.284 23 Ali m
Uncontrolled Keywords: Absorption, Carbon dioxide, MDEA, Packed column
Subjects: Q Science > QD Chemistry > QD117 Absorption
Divisions: Faculty of Industrial Technology > Chemical Engineering > 24101-(S2) Master Thesis
Depositing User: ansi aflacha
Date Deposited: 08 Sep 2020 02:54
Last Modified: 08 Sep 2020 02:54
URI: http://repository.its.ac.id/id/eprint/81818

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