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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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

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