شماره ركورد كنفرانس :
4518
عنوان مقاله :
Growth Kinetic Survey in Biodesulfurization of Natural Gas
Author/Authors :
Ali Alemian Biotechnology Lab. - Faculty of Chemical Engineering - Noushirvani University of Technology, Babol , Ghasem D Najafpour Biotechnology Lab. - Faculty of Chemical Engineering - Noushirvani University of Technology, Babol , Ali-Asghar Ghoreyshi Biotechnology Lab. - Faculty of Chemical Engineering - Noushirvani University of Technology, Babol , Mohsen Jahanshahi Nanobiotechnology Lab.- Faculty of Chemical Engineering- Noushirvani University of Technology, Babol , Maryam khavarpour Department of Chemical Engineering - Ayatollah Amoli Branch- Islamic Azad University
كليدواژه :
Biodesulfurization , Hydrogen sulfide , Kinetic parameters , Logistic , Monod , Andrew’s model
عنوان كنفرانس :
The 7th International Chemical Engineering Congress & Exhibition (IChEC 2011
چكيده لاتين :
The present study described here is focused on biodesulfurization of natural gas in a batch culture
using active microorganisms. The microorganisms used for the removal of hydrogen sulfide were
isolated from a local hot spring. The experiments were conducted with mixed gas at initial
pressures of 1 to 1.8atm. Three kinetic models such as; Andrew, Logistic and Monod models in a
batch culture were used to describe the microbial growth and substrate utilization. At low pressure
(1atm), the bacterial behavior was substrate related and growth dependent. With gas pressure of
1.2atm, maximum cell dry weight of 3.136 g/l was obtained with Logistic model. The obtained
regression values for Logistic model were reasonably acceptable for all initial gas pressures. As
the gas pressure was increased to 1.8atm, the inhibition coefficient may be dominated in growth
kinetic. Andrew’s equation was also able to predict inhibition constant; as the gas pressure
increased the inhibition coefficient increased.
