Oxidative Absorption of Hydrogen Sulfide using Iron-chelate Based Process: Chelate Degradation
Girish M Deshmukh*, Aparna Shete and Deepali M Pawar
Department of Petrochemical Engineering, Dr. Babasaheb Ambedkar Technological University, Lonere (Raigad), India
- *Corresponding Author:
- Girish M Deshmukh
Department of Petrochemical Engineering
Dr. Babasaheb Ambedkar Technological University
Lonere (Raigad) - 402103, India
Tel: +91-2140-275142, +91-9422383731
Received date: June 05, 2012; Accepted date: July 16, 2012; Published date: July 21, 2012
Citation: Deshmukh GM, Shete A, Pawar DM (2012) Oxidative Absorption of Hydrogen Sulfide using Iron-chelate Based Process: Chelate Degradation. J Anal Bioanal Tech 3:138. doi: 10.4172/2155-9872.1000138
Copyright: © 2012 Deshmukh GM, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Oxidative absorption of hydrogen sulfide into a solution of ferric chelate is studied in stirred cell glass reactor. The experiments are performed to investigate degradation of chelates viz., NTA, EDTA and DTPA at 313 K temperature, pH 6, Iron concentration 10000 ppm and Fe-Chelate molar ratio 1:2. Oxidative absorption of hydrogen sulfide into a solution of Fe-NTA was found better. Therefore, further experiments with 10%, 50% and 100% concentrations of hydrogen sulfide are performed. It is observed that this process is applicable for removal of low to high concentrations of hydrogen sulfide. Effect of antioxidant using sodium thiosulphate is also studied in order to minimize degradation of NTA. The kinetic parameters are studied and it is observed that the reaction appeared to be first order in ferric chelate and Rate constant values for 100%, 50% and 10% hydrogen sulfide concentration are 0.035 hr-1, 0.013 hr-1 and 0.019 hr-1 respectively.