BEHAVIOR OF THE GROWING CELLS OF RALSTONIA EUTROPHA IN BIODESULFURIZATION OF DIBENZOTHIOPHENE

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Dejaloud Azita; HABIBI ALIREZA; jalilnejad Elham; VAHABZADEH FARZANEH

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Seminar Paper

Paper Information

Seminar: CONFERENCE ON PROCESS, OIL, GAS, REFINING AND AND PETROCHEMICAL ENGINEERING
Year:2015 | Issue:4

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Title

BEHAVIOR OF THE GROWING CELLS OF RALSTONIA EUTROPHA IN BIODESULFURIZATION OF DIBENZOTHIOPHENE

Author(s)

Dejaloud Azita | HABIBI ALIREZA | jalilnejad Elham | VAHABZADEH FARZANEH

Keywords

BIO DESULFURIZATION

DIBENZOTHIOPHENE

RALSTONIA EUTROPHA

GIBB’S REAGENT

Abstract

THE NEW REGULATIONS TO LOWER SULFUR CONTENT IN FOSSIL FUELS REQUIRE NEW ECONOMIC AND EFFICIENT METHODS FOR DESULFURIZATION OF RECALCITRANT ORGANIC SULFUR. HYDRODESULFURIZATION (HDS) OF SUCH COMPOUNDS IS VERY COSTLY AND REQUIRES HIGH OPERATING TEMPERATURE AND PRESSURE. BIODESULFURIZATION (BDS) IS NON-INVASIVE APPROACH THAT CAN SPECIFICALLY REMOVE SULFUR FROM REFRACTORY HYDROCARBONS UNDER MILD CONDITIONS AND IT CAN BE POTENTIALLY USED IN INDUSTRIAL DESULFURIZATION. BIODESULFURIZATION OF DIBENZOTHIOPHENE (DBT) BY GROWING CELLS OF RALSTONIA EUTROPHA IN AQUEOUS REACTION SYSTEM WAS INVESTIGATED IN THE PRESENT STUDY.DBT AND GLUCOSE, RESPECTIVELY USED AS THE SOLE SOURCE OF SULFUR AND CARBON FOR GROWTH OF R.EUTROPHA. THE EFFECT OF DIFFERENT INITIAL CONCENTRATIONS OF DBT (15 AND 20 PPM) WITH A CONSTANT LEVEL OF GLUCOSE AT 10 G/L ON THE R. EUTROPHA GROWTH AND ITS DBT DESULFURIZATION CAPABILITY AND PH VARIATION WAS STUDIED. GROWTH BEHAVIOR OF THE BACTERIAL CELLS WAS GENERALLY THE SAME AND NO SIGNIFICANT DIFFERENCES IN GROWTH RATE WERE OBSERVED IN WHICH DIFFERENT INITIAL CONCENTRATIONS OF DBT WERE USED. DURING THE FIRST EIGHT HOURS OF CELL GROWTH, THE PH OF MEDIUM WAS DECREASED. THE DESULFURIZATION ACTIVITY OF THE CELLS WAS MEASURED WITH USE OF GIBB’S REAGENT AND CELLS CULTIVATED IN THE MEDIUM CONTAINING 15 PPM OF DBT SHOWED HIGHER DESULFURIZATION ACTIVITY.

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APA: Copy

Dejaloud, Azita, HABIBI, ALIREZA, jalilnejad, Elham, & VAHABZADEH, FARZANEH. (2015). BEHAVIOR OF THE GROWING CELLS OF RALSTONIA EUTROPHA IN BIODESULFURIZATION OF DIBENZOTHIOPHENE. CONFERENCE ON PROCESS, OIL, GAS, REFINING AND AND PETROCHEMICAL ENGINEERING. SID. https://sid.ir/paper/919979/en

Vancouver: Copy

Dejaloud Azita, HABIBI ALIREZA, jalilnejad Elham, VAHABZADEH FARZANEH. BEHAVIOR OF THE GROWING CELLS OF RALSTONIA EUTROPHA IN BIODESULFURIZATION OF DIBENZOTHIOPHENE. 2015. Available from: https://sid.ir/paper/919979/en

IEEE: Copy

Azita Dejaloud, ALIREZA HABIBI, Elham jalilnejad, and FARZANEH VAHABZADEH, “BEHAVIOR OF THE GROWING CELLS OF RALSTONIA EUTROPHA IN BIODESULFURIZATION OF DIBENZOTHIOPHENE,” presented at the CONFERENCE ON PROCESS, OIL, GAS, REFINING AND AND PETROCHEMICAL ENGINEERING. 2015, [Online]. Available: https://sid.ir/paper/919979/en

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