Recent advances in catalytic oxidative desulfurization of
2022年8月25日 While desulfurization technology is a key process in oil refining with the common goal of increasing fuel quality and environmental protection, the different
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Recent breakthroughs in deep aerobic oxidative
2021年4月20日 In model oil desulfurization, almost complete desulfurization efficiency was achieved at optimal operating conditions. The extraordinary desulfurization efficiency was
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Desulfurization of heavy oil SpringerLink
2012年3月1日 The desulfurization methods including variations thereon that are discussed include hydrodesulfurization, extractive desulfurization, oxidative desulfurization,
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Oxidative and extractive desulfurization of petroleum
2021年6月1日 In the present study, the applied desulfurization procedure combines both oxidative and extractive desulfurization, and results in a mild desulfurization efficiency for
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Sulfur removal from crude oil using supercritical water
2016年5月25日 Desulfurization of crude oil using supercritical water (SCW) is one of the promising nonconventional processes for upgrading oil. SCW is an excellent solvent for
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Desulfurization of high sulfur petroleum coke by molten
2019年6月1日 In this work, petroleum coke desulfurization conditions using solid KOH have been studied. Maximum petroleum coke desulfurization by MCL method has been
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Vacuum-assisted and alkali roasting for desulfurization of
2022年1月15日 Ha et al. (2019) conducted an experimental study on the desulfurization of petroleum coke by molten alkali leaching. The effects of the alkali-to-coke mass ratio,
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(PDF) Oxidative Desulfurization of Petroleum - ResearchGate
2022年10月28日 Abstract. One of the most successful desulfurization procedures for the creation of ultra-low sulphur import fuels is oxidative desulfurization, which converts
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Desulfurization of petroleum fractions by oxidation and
1995年3月1日 The known ability of several solvents to extract sulfur compounds selectivity from petroleum fractions can be dramatically improved by oxidizing the sulfur from the
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Recent advances in catalytic oxidative desulfurization of
2022年8月25日 In addition, OADS is economical, has mild conditions of reaction, no requirement for extractant, and is highly efficient for good desulfurization of fuel oil. The catalyst demonstrated a DBT removal rate of 99% within 30 min at the operating temperature of 60 °C in the absence of extractant.
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Review on recent advances in adsorptive desulfurization
2021年4月1日 Oxidative desulfurization (ODS) is an indirect two-steps process, where organic sulfur compounds from petroleum fractions are oxidized into corresponding more polar sulfones and sulfoxides in the presence of a suitable oxidant and a catalyst and then extracted using a suitable polar solvent.
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Metal-Free Catalytic Oxidative Desulfurization of Fuels─A
2022年3月15日 Desulfurization of fuels is an important matter that constantly requires attention from the relevant stakeholders for environmental, economic, and social benefits. Hydrodesulfurization required to lower the sulfur content in the crude oil comes at high operating conditions and cost, especially toward achieving ultradeep desulfurization of
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Review on Sulfur Compounds in Petroleum and Its
2021年9月3日 Sulfur compounds have significant geochemical information, and the removal of sulfur from petroleum products is one of the most important tasks in petroleum refining. However, it is a challenging task to reveal the chemical composition of sulfide at the molecular level because of its complex composition. Unremitting efforts have been made
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Desulfurization of liquid fuels using aluminum modified
2021年4月23日 Department of Gas Engineering, Ahwaz Faculty of Petroleum, Petroleum University of Technology, Ahwaz, Iran Mohammad Reza Khosravi-Nikou, Mohammad Hadi Safari, Amir Asadi Rad, Pouya Hassani ...
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Sulfur removal from crude oil using supercritical water
2016年5月25日 Desulfurization of crude oil using supercritical water (SCW) is one of the promising nonconventional processes for upgrading oil. SCW is an excellent solvent for high molecular weight organic compounds in crude oils. Low sulfur content of crude oil is particularly preferred. Water is one of the most commonly used supercritical fluids
MoreExtraction Methods for Removing Sulfur and Its
2021年6月17日 Alkali treatment is an attractive desulfurization procedure because of the cheapness of chemicals and ease of implementation. Sodium hydroxide efficiently takes up hydrogen sulfide and light mercaptans from petroleum products, but is inefficient in removal of heavy mercaptans and polycyclic sulfur compounds, which are weak acids and are
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Desulfurization of heavy oil - Springer
2017年8月25日 Desulfurization of heavy oil Rashad Javadli • Arno de Klerk Received: 23 November 2011/Accepted: 2 February 2012/Published online: 1 March 2012 The Author(s) 2012. This article is published with open access at Springerlink Abstract Strategies for heavy oil desulfurization were evaluated by reviewing desulfurization literature and crit-
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Reduction and Desulfurization of Petroleum Coke in
Results showed that NH 3 -reducing desulfurization could significantly remove sulfur in the coke, and the best operation temperature was approximately 800 °C, at which more than 80% of organic sulfur could be removed. The physical and chemical indicators of petroleum coke after desulfurization were not affected.
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Desulfurization of petroleum coke: a review Semantic
1992年8月1日 A number of processes ranging from purely physical such as solvent extraction to thermal or chemical treatment using different agents including hydrocarbon gases, alkali metal compounds, and hydrogen have been proposed for petroleum coke desulfurization. The complexity of the sulfur-carbon bonds in coke, together with the
MoreMetal-Free Catalytic Oxidative Desulfurization of Fuels─A
2022年3月15日 Desulfurization of fuels is an important matter that constantly requires attention from the relevant stakeholders for environmental, economic, and social benefits. Hydrodesulfurization required to lower the sulfur content in the crude oil comes at high operating conditions and cost, especially toward achieving ultradeep desulfurization of
MoreReview on Sulfur Compounds in Petroleum and Its
2021年9月3日 Sulfur compounds have significant geochemical information, and the removal of sulfur from petroleum products is one of the most important tasks in petroleum refining. However, it is a challenging task to reveal the chemical composition of sulfide at the molecular level because of its complex composition. Unremitting efforts have been made
MoreDesulfurization of liquid fuels using aluminum modified
2021年4月23日 Department of Gas Engineering, Ahwaz Faculty of Petroleum, Petroleum University of Technology, Ahwaz, Iran Mohammad Reza Khosravi-Nikou, Mohammad Hadi Safari, Amir Asadi Rad, Pouya Hassani ...
MoreReduction and Desulfurization of Petroleum Coke in
Results showed that NH 3 -reducing desulfurization could significantly remove sulfur in the coke, and the best operation temperature was approximately 800 °C, at which more than 80% of organic sulfur could be removed. The physical and chemical indicators of petroleum coke after desulfurization were not affected.
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Desulfurization of heavy oil Semantic Scholar
2012年3月1日 Desulfurization of Heavy Oil–Oxidative Desulfurization (ODS) As Potential Upgrading Pathway for Oil Sands Derived Bitumen. Rashad Javadli, A. Klerk. Chemistry. 2012. Heavy oil usually contains percentage levels of sulfur. Most of the sulfur in heavy oil is found in bulky thiophenic structures.
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METHODS FOR DESULFURIZATION OF CRUDE OIL- A
2017年6月7日 Sci.Int.(Lahore),28(2),1169-1173,2016 ISSN 1013-5316; CODEN: SINTE 8 1169 March-April METHODS FOR DESULFURIZATION OF CRUDE OIL- A REVIEW 1Solat Ullah Siddiqui, 1Kashif Ahmed* 1D epartm nt of Chemistry ,Ned University of Engineering and technology Karachi Pakistan soulat87@gmail, kashif25473@yahoo
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Oxidative Desulfurization of Petroleum Coke SpringerLink
2023年3月20日 The optimum parameters of the oxidative desulfurization are as follows: Т = 180°C, Р = 5 MPa, and coke particle size 1–2 mm. In this case, 32.34% degree of coke desulfurization is reached. The desulfurized coke contains 2.95 wt % sulfur and 10% water. Deep desulfurization of petroleum coke leads to an increase in the content of volatiles ...
MoreDesulfurization of petroleum coke: a review Semantic
1992年8月1日 A number of processes ranging from purely physical such as solvent extraction to thermal or chemical treatment using different agents including hydrocarbon gases, alkali metal compounds, and hydrogen have been proposed for petroleum coke desulfurization. The complexity of the sulfur-carbon bonds in coke, together with the
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Microbial desulfurization of organic sulfur compounds in
Sulfur removal from petroleum is important from the standpoint of the global environment because the combustion of sulfur compounds leads to the production of sulfur oxides, which are the source of acid rain. As the regulations for sulfur in fuels become more stringent, the existing chemical desulfu
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Petroleum Desulfurization – Chemical production and
2 天之前 Published January 1969. This report is concerned with technology and costs for the desulfurization of petroleum stocks. Although the hydrodesulfurization of light and middle distillates such as gasoline, naphtha, kerosene, and gas oil is also evaluated, the emphasis here is on sulfur removal from the resid- ual fuel oil where there is a growing ...
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