Optimization of conditions for deep desulfurization of heavy crude oil and hydrodesulfurized diesel by Gordonia sp. IITR100

Adlakha, Jyoti; Singh, Pooja; Kumar, Ram Saurabh; Kumar, Manoj; Singh, M.P.; Singh, Dheer; Sahai, Vaibhav; Srivastava, Preeti

doi:10.1016/j.fuel.2016.07.021

Cited by 36 publications

(20 citation statements)

References 38 publications

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“…Gordonia sp. IITR100 reduces 76% and 56% sulfur from diesel oil and crude oil (Adlakha et al, 2016). This strain Gordonia sp.…”

Section: Discussionmentioning

confidence: 99%

“…IITR100 has described with a significant potential to reduce the sulfur content from diesel upto 76%. (Adlakha et al, 2016). Whole genome sequence (Jaishankar et al, 2017) and feed-back inhibition of 2-HBP (end product of 4S pathway) have been studied to happened by TetR family proteins (Murarka et al, 2018;Murarka et al, 2018;Murarka et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

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Desulfurization of Benzothiophene by an Isolated Gordonia Sp. Iitr100

Ahmad

Ahmad²,

Khan³

et al. 2021

J microb biotech food sci

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Different recalcitrant aliphatic and aromatic sulfur compounds e.g. Dibenzothiophene, Benzothiophene, and Di-methyl Dibenzothiophene etc. have been remaining in the petrol and diesel, even after hydrodesulfurization, a chemical method of sulfur impurities removal. These sulfur impurities are required to be removed before it is being transported as fuel. So many microbes have been reported in the last decade showing potential for removing the sulfur impurities by using various pathways at ambient temperature, especially 4S pathways. In this study, we describe desulfurization of a model compound Benzothiophene by a Gordonia sp. IITR100 using microbial cell culture and analytical techniques e.g. spectrophotometry and gas chromatography-mass spectrophotometry using column-5. Gordonia sp. IITR100 can grow on Benzothiophene as well as Dibenzothiophene us shown by spectrophotometrical analysis as evident by increased turbidity in aqueous culture. Benzothiophene was metabolized to o-hydroxystyrene as the final product analogous to ‘4S’ pathway as Gas Chromatography-Mass Spectra analysis revealed. Gordonia sp. IITR100 have already been shown desulfurization with heavy organosulfur compounds like Thianthrene, and Benzonahpthothiophene to o-hydroxyphenyl phenylsulfone and 2-phenyl-naphthalene-1-ol respectively. The Gordonia sp. IITR100 have shown potential for Desulfurization of heavy and calcitarant sulfur-compounds suggests its potential (broad substrates range) for use in various tough organosulfur fractions in petroleum. Thus, this bacterial strain could be utilized for commercial purpose of biodesulfurization.

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“…Gordonia sp. IITR100 reduces 76% and 56% sulfur from diesel oil and crude oil (Adlakha et al, 2016). This strain Gordonia sp.…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Desulfurization of Benzothiophene by an Isolated Gordonia Sp. Iitr100

Ahmad

Ahmad²,

Khan³

et al. 2021

J microb biotech food sci

View full text Add to dashboard Cite

show abstract

“…The cost operation of the intracellular enzymes is also cheaper because the cost for enzyme isolation and purification is not required. Several intracellular enzymes in the living microorganisms have been reported for the biodesulfurization process such as Rhodococcus spp , Arthrobacter , Agrobacterium , Pseudomonas , Gordonia , Brevibacterium , and Mycobacterium 143–157 . These microorganisms utilize organosulfur compound in crude oil as their food and energy source.…”

Section: Biodesulfurizationmentioning

confidence: 99%

Science and Technology Progress on the Desulfurization Process of Crude Oil

Jumina

Kurniawan

Purwono

et al. 2021

Bulletin Korean Chem Soc

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Currently, crude oil still remains an irreplaceable energy source for chemical industrial processes, transportation systems, electricity, and other human activities. However, crude oil contains sulfur elements as the major impurities in the form of aliphatic and aromatic organosulfur compounds. During the combustion of fuel, these organosulfur compounds are converted to harmful SOx gases; thus, many countries strictly limit the maximum sulfur content in the fuels. To fulfill the government regulation, refineries are trying to decrease the maximum sulfur content in crude oil through several desulfurization technologies, such as hydrodesulfurization, adsorption, oxidative‐desulfurization, alkylation, and biodesulfurization. Each desulfurization technology has its own advantages and disadvantages. In this review article, we aimed to briefly summarize the progress in the developing science and technology of each desulfurization process of crude oil. Several fields in the desulfurization process are still facing challenges to create better designs and development for a safer future of the world.

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“…Cells harvested from four timepoints of growth (25,38,46, and 54 h) were used for the experiments in the two-phase system. The initial DBT concentration in the organic phase was set at 3 mM, cell mass concentration was set at 10 g DCW/L, and the OFP was set at 50% (v/v) in all cases.…”

Section: Effect Of the Biocatalyst's Age On Dbt Biodesulfurizationmentioning

confidence: 99%

Biodesulfurization of Dibenzothiophene and Its Alkylated Derivatives in a Two-Phase Bubble Column Bioreactor by Resting Cells of Rhodococcus erythropolis IGTS8

et al. 2021

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Biodesulfurization (BDS) is considered a complementary technology to the traditional hydrodesulfurization treatment for the removal of recalcitrant sulfur compounds from petroleum products. BDS was investigated in a bubble column bioreactor using two-phase media. The effects of various process parameters, such as biocatalyst age and concentration, organic fraction percentage (OFP), and type of sulfur compound—namely, dibenzothiophene (DBT), 4-methyldibenzothiophene (4-MDBT), 4,6-dimethyldibenzothiophene (4,6-DMDBT), and 4,6-diethyldibenzothiophene (4,6-DEDBT)—were evaluated, using resting cells of Rhodococcus erythropolis IGTS8. Cells derived from the beginning of the exponential growth phase of the bacterium exhibited the highest biodesulfurization efficiency and rate. The biocatalyst performed better in an OFP of 50% v/v. The extent of DBT desulfurization was dependent on cell concentration, with the desulfurization rate reaching its maximum at intermediate cell concentrations. A new semi-empirical model for the biphasic BDS was developed, based on the overall Michaelis-Menten kinetics and taking into consideration the deactivation of the biocatalyst over time, as well as the underlying mass transfer phenomena. The model fitted experimental data on DBT consumption and 2-hydroxibyphenyl (2-HBP) accumulation in the organic phase for various initial DBT concentrations and different organosulfur compounds. For constant OFP and biocatalyst concentration, the most important parameter that affects BDS efficiency seems to be biocatalyst deactivation, while the phenomenon is controlled by the affinities of biodesulfurizing enzymes for the different organosulfur compounds. Thus, desulfurization efficiency decreased with increasing initial DBT concentration, and in inverse proportion to increases in the carbon number of alkyl substituent groups.

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Optimization of conditions for deep desulfurization of heavy crude oil and hydrodesulfurized diesel by Gordonia sp. IITR100

Cited by 36 publications

References 38 publications

Desulfurization of Benzothiophene by an Isolated Gordonia Sp. Iitr100

Desulfurization of Benzothiophene by an Isolated Gordonia Sp. Iitr100

Science and Technology Progress on the Desulfurization Process of Crude Oil

Biodesulfurization of Dibenzothiophene and Its Alkylated Derivatives in a Two-Phase Bubble Column Bioreactor by Resting Cells of Rhodococcus erythropolis IGTS8

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