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SELECTIVE REMOVAL OF ORGANIC SULFUR FROM COAL

16/05/2007· Several physical methods are available for the removal of inorganic sulfur which is normally represented by pyritic and sulfatic sulfur. Removal of organic sulfur requires the use of chemical cleaning methods. This paper presents the results of an organic sulfur removal technique which employs an organic solvent. This desulfurization technique is selective enough to reject organic sulfur

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Removal of sulfur inorganic compounds by a biofilm of

Removal of sulfur inorganic compounds by a biofilm of sulfate reducing and sulfide oxidizing bacteria in a down‐flow fluidized bed reactor. Lourdes B Celis‐García. Corresponding Author. E-mail address: [email protected] División de Ciencias Ambientales, Instituto Potosino de Investigación Científica y Tecnológica, Camino a la Presa San José 2055, Lomas 4ta., 78216, San Luis

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Experimental Study on Organic Sulfur Removal in Bituminous

the organic sulfur removal rate is 43.08%, while the inorganic sulfur removal rate is only 8.7%. Accordingly, ILs show priority for removing organic sulfur while H 2 O 2 for inorganic sulfur reduction. Combining the advantages of both, [HOOCCH 2 mim][HSO 4]−H 2 O 2 solvent was applied to enhance sulfur removal on a synergistic basis. When the mass ratio of [HOOCCH 2 mim][HSO 4]−H 2 O 2 is

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Experimental Study on Organic Sulfur Removal in

It implies that the removal rate of inorganic sulfur in coal mainly depends on the amount of H 2 O 2, and the addition of an IL can significantly increase the removal rate of organic sulfur, which may be due to the ability of the IL to transfer the organic sulfur from coal to the liquid phase where the oxidation could be carried out more favorably. The H 2 O 2 solution desulfurization

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Low temperature removal of inorganic sulfur compounds

Low temperature removal of inorganic sulfur compounds from mining process waters. Abstract Process water and effluents from mining operations treating sulfide rich ores often contain considerable concentrations of metastable inorganic sulfur compounds such as thiosulfate and tetrathionate. These species may cause environmental problems if released to downstream recipients due to oxidation to

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Low temperature removal of inorganic sulfur compounds

Low temperature removal of inorganic sulfur compounds from mining process waters. Liljeqvist M(1), Sundkvist JE, Saleh A, Dopson M. Author information: (1)Department of Molecular Biology, Umeå University, SE-901 87 Umeå, Sweden. Process water and effluents from mining operations treating sulfide rich ores often contain considerable concentrations of metastable inorganic sulfur

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Effect of removal organic sulfur from coal macromolecular

01/01/2020· Inorganic sulfur in coal could be easily removed by the most economical physical method, while organic sulfur removal was difficult due to the complexity of coal macromolecular structure . As shown in Fig. 1,organic sulfur mainly existed in the form of five kinds of sulfur-containing groups, including thiols, thiophene, thioether, sulfoxide and sulfone [12],[13],[14] .

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Evaluation of the Removal of Organic Sulfur from Coal

the rapid removal of most of the inorganic sulfur and a substantial portion of the organic sulfur under relatively mild conditions. However, the removal of organic sulfur varies from coal to coal 06). Even for the same coal, the reduction in organic sulfur may be variable because of sample heterogeneity, changes in process conditions, and sometimes quite unknown factors. It appears that adding

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Removal Inorganic Sulfur-China Removal Inorganic Sulfur

China Removal Inorganic Sulfur Select 2020 Removal Inorganic Sulfur products from verified China Removal Inorganic Sulfur manufacturers, suppliers on Made-in-China.

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(PDF) Sulfur distribution in coke and sulfur removal

removal of both organic and inorganic sulfur in semi-coke by. H. 2. in the form of H. 2. S. In this study, it was found that some of. H. 2. S and S. n. removed as part of pyrolysis gas would go

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Removal of sulfur inorganic compounds by a biofilm of

Removal of sulfur inorganic compounds by a biofilm of sulfate reducing and sulfide oxidizing bacteria in a down‐flow fluidized bed reactor. Lourdes B Celis‐García. Corresponding Author. E-mail address: [email protected] División de Ciencias Ambientales, Instituto Potosino de Investigación Científica y Tecnológica, Camino a la Presa San José 2055, Lomas 4ta., 78216, San Luis

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Low temperature removal of inorganic sulfur compounds

Low temperature removal of inorganic sulfur compounds from mining process waters. Liljeqvist M(1), Sundkvist JE, Saleh A, Dopson M. Author information: (1)Department of Molecular Biology, Umeå University, SE-901 87 Umeå, Sweden. Process water and effluents from mining operations treating sulfide rich ores often contain considerable concentrations of metastable inorganic sulfur

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Low temperature removal of inorganic sulfur compounds

Low temperature removal of inorganic sulfur compounds from mining process waters. Abstract Process water and effluents from mining operations treating sulfide rich ores often contain considerable concentrations of metastable inorganic sulfur compounds such as thiosulfate and tetrathionate. These species may cause environmental problems if released to downstream recipients due to oxidation to

Get Price

Low temperature removal of inorganic sulfur compounds

Process water and effluents from mining operations treating sulfide rich ores often contain considerable concentrations of metastable inorganic sulfur compounds such as thiosulfate and tetrathionat

Get Price

US6368495B1 Removal of sulfur-containing compounds

A novel process effective for the removal of organic sulfur compounds from liquid hydrocarbons is disclosed. The process more specifically addresses the removal of thiophenes and thiophene derivatives from a number of petroleum fractions, including gasoline, diesel fuel, and kerosene. In the first step of the process, the liquid hydrocarbon is subjected to oxidation conditions in order to

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(PDF) Sulfur distribution in coke and sulfur removal

removal of both organic and inorganic sulfur in semi-coke by. H. 2. in the form of H. 2. S. In this study, it was found that some of. H. 2. S and S. n. removed as part of pyrolysis gas would go

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Microbial sulfide removal Water Tech Online

The formation and removal of elemental sulfur formed in the bioreactor is illustrated in Image 1. This shows the formation of sulfur solids and their removal as the water transfers from the leading chambers of the bioreactor to the latter chambers. References. Cornelius G. Friedrich, Dagmar Rother, Frank Bardischewsky, Armin Quentmeier and Jörg Fischer. “Oxidation of Reduced Inorganic

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Removal Inorganic Sulfur-China Removal Inorganic

China Removal Inorganic Sulfur Select 2020 Removal Inorganic Sulfur products from verified China Removal Inorganic Sulfur manufacturers, suppliers on Made-in-China.

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Desulfurization of Coal

associated minerals, it can remove the inorganic sulfur alone. This method is the commercially proven technology. Chemical or biological cleaning can offer the potential to remove organic sulfur, but these methods have not yet been used commercially. Development work is currently directed towards establishing effective, low-cost techniques. In-bed desulfurization involves the use of Ca-based

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An evaluation of desulfurization technologies for sulfur

The sulfur removal rate of simulated gasoline reduced with the addition of cyclohexene and xylene into the solvent n-heptane. Al-Shahrani et al. 120 utilized a catalytic system composed of Na 2 WO 4, 30% H 2 O 2 and CH 3 COOH for the deep removal of sulfur in diesel. Treatment of model solutions of octane containing DBT and 4,6-dimethyl DBT with the above ODS system showed 100% conversion of

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