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Study on the C02Absorption in Several Types of Amines

Rafaee, Khalid (2005) Study on the C02Absorption in Several Types of Amines. Universiti Teknologi Petronas. (Unpublished)

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Abstract

This report detail the findings of the lab experiment of C02 gas absorption into amine based solvents. Prior a literature review established mixture of amine solution processes as the most attractive alternative to the most common solvent in industry, secondary amine. On that basis these processes were selected to compare against the secondary amine, Diethanolamine (DEA). As a starting point, understanding the process and operational variables in the industry is an advantage to relate the industrial practices and theoretical values. Those variables could be used as guidance in carrying out this work The experiment is driven by two issues: The capability of each of the amine solution in C02 absorption process and to test the tendency of 'foaming' in all the prepared solvent in this work. The comparison of C02 loading in each of the prepared solventwas doneby simplemathematical method. The methodwas used to determine the amount ofC02 absorbed per 1milliliter of solvent. The methodology is a must due to the difficulties infixing the concentration ofC02 inthe feedgas. Rate of absorption of C02 into amine was determined from the gas phase material balance using the measured inlet and outlet gas concentration. The comparison between the two solvents was carried out on the basis of the different concentration and lean solvent flowrate. Theoretically, different flowrate and concentration of solvent will affect the rate of absorption as well as the C02 loading capacity. Again, the rate ofreaction ofthe mixture ofvarious amines is slightly lower relatively to the single amine with higher concentration. The foaming tendency tests were carried out in order to test the reliability of each of the prepared solvents. Higher foaming tendency in the solvent can cause the instability in operating the unit. In this work, the mixture of solvent was found not really at the higher risk of foaming. The mixture of 21.83 wt% DEA and 10.23 wt% MEA can be concluded as the most attractive interm ofcapability to absorb C02 aswell asthe resistance to foaming. More study on this solvent is required especially on the corrosiveness, hydrocarbon loading and reclamation process.

Item Type: Final Year Project
Academic Subject : Academic Department - Chemical Engineering - Catalysis
Subject: T Technology > TP Chemical technology
Divisions: Engineering > Chemical
Depositing User: Users 2053 not found.
Date Deposited: 04 Oct 2013 15:30
Last Modified: 25 Jan 2017 09:46
URI: http://utpedia.utp.edu.my/id/eprint/8178

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