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Biological, Corrosion and Characterization Analysis of STONVENT for C02 removal

Mohd Ruba'ai, Nur Akissha (2010) Biological, Corrosion and Characterization Analysis of STONVENT for C02 removal. Universiti Teknologi PETRONAS. (Unpublished)

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Absorption with amine based solvents is the most common technology for COz removal today. In this project, STONVENT chemically absorbs COz and after reaching the equilibrium, it forms amount of solid precipitates which is regarded as the byproduct. The objective of this study is to investigate the byproduct of STONVENT via biological analysis as well as the corrosion analysis of STONVENT during COz absorption. A characterization study on STONVENT also been done by characterization techniqv~~ using FTIR and XRD. This project concerns a development of new solvent, STONVENT which has huge potential to capture COz from natural gas. The obtained results showed BOD5 of STONVENT byproduct range from 226.5 mg/L to 602.5 mg/L and the COD range from 869 mg/L to 2161 mg/L. The corrosion analysis used two techniques, TAFEL and anodic potentiodynamic polarization curve. The corrosion rate calculated based on metal deposition of A-36 carbon steel in the pure STONVENT is 0.134 mmPY. From FTIR technique, several functional groups such as alcohol, carboxylic acid, alkynes and alkyl amine may be presented at before and after STONVENT undergo C02 absorption. By using XRD technique, chemical compounds found in STONVENT byproduct were compared to International Centre for Diffraction Database (ICDC). STONVENT byproduct might be in the best matched to Trona and Nahcolite with chemical formula, Na3H(C03)2.2Hz0 and NaHC03 respectively. STONVENT is a new solvent and it definitely requires continuous research to exp0~(' the real potential of the solvent.

Item Type: Final Year Project
Academic Subject : Academic Department - Chemical Engineering - Separation Process
Subject: T Technology > TP Chemical technology
Divisions: Engineering > Chemical
Depositing User: Users 2053 not found.
Date Deposited: 29 Oct 2013 10:52
Last Modified: 25 Jan 2017 09:43
URI: http://utpedia.utp.edu.my/id/eprint/10061

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