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Sulfur removal from coal through multiphase media . Sulfur removal from coal through multiphase media containing bioalysts Lee, KwangIl Yen, Teh Fu 19900101 000000 A novel bioprocess using micelle bioalysts was developed to minimize several disadvantages of conventional microbial coal
ENZYMATIC REMOVAL OF ORGANIC SULFUR FROM COAL. The removal of orqanic sulfur from coal is a significantly more demanding task than pyritic sulfur removal mainly because of two reasons. Foremost, organic sulfur is deeply embedded in the coal matrix requiring a very fine pulverization of coal in order to expose the sulfur compounds to the action
In enzymatic desulfurization process, enzymes whether intracellular or extracellular attack organosulfur components in the crude oil or its fractions and remove sulfur through a series of enzymatic reactions.
Sulfur removal from coal through multiphase media containing biocatalysts Lee, KwangIl Yen, Teh Fu 1990-01-01 000000 A novel bioprocess using micelle biocatalysts was developed to minimize several disadvantages of conventional microbial coal desulfurization processes. The multiphase biocatalysis process consists of an organic medium ...
Biochemical mechanisms for the desulfurization of coal-relevant organic sulfur compounds M. van Afferden, D. Tappe, M. Beyer, H. G. Trer and J. Klein DM1-Gesellschaft f Forschung und Prung mbH, Franz-Fischer-Weg 61, 45307 Essen, FRG Institut f Mikrobiologie der Rheinischen Friedrich-Wilhelms-Universit, Meckenheimer Allee 168, 53115 Bonn 1.
ENZYMATIC REMOVAL OF ORGANIC SULFUR FROM COAL. ENZYMAllC RLMOVAL OF ORGANlC SULFUR FROM COAL. Ngaiza traditional coal cleaning processes lies in the use of biological methods because . to acclimate its biological machinery in such a
2002-10-27Sulfur oxidation appears a very promising route for obtaining ultralow-sulfur fuels requested worldwide by the new regulation mandates. In this work, the oxidizing system constituted by hydrogen peroxide and formic acid was used to study the influence of the solvent on the oxidation rate of sulfur compounds in the organic phase. The experimentation was performed on organic sulfur compounds ...
Biodesulfurization of refractory organic sulfur compounds in fossil fuels. ... The oxidative and carbon-destructive series of enzymatic actions that attack carbon atoms in DBT phenyl ring is known as Kodama pathway ... It was reported that desulfurization of solubilized coal would result a higher sulfur removal.
1994-9-6A process for organic C--S bond cleavage of a sulfur-containing organic carbonaceous material by contacting the carbonacous material with a sulfur specific enzyme reactant of membrane fragments, an enzyme, or a composition of enzymes having the ability to selectively react with sulfur by cleavage of organic C--S bonds.
An extract of membrane fragments, an enzyme, and a composition of enzymes associated with cell membranes of Rhodococcus rhodochrous strain ATCC No. 53968 and Bacillus sphaericus strain ATCC No. 53969 which have the ability to selectively react with organic sulfur of sulfur-containing organic carbonaceous material by cleavage or organic C-S bonds.
Coal crushers for 500 mw thermal power plants. coal crushers for 500 mw thermal power plants coal crushers working in thermal power plant coal crushers for 500 mw thermal power plants Crusher manufacturers Crusher Wikipedia A crusher is a machine designed to reduce large rocks into In the coal industry, Each crusher is designed to work with a certain maximum size of raw More Details.
Processing Equipment Low Sulfur Coal Jakarta. Planta Mvil de Trituradora de Mandbula. Planta Mvil de Trituradora de Impacto. Planta Mvil de Trituradora de Cono. Planta Mvil de Trituradora de VSI. Material construccin de carretera e industrias de agregados.
1998-6-4A new, inexpensive filter efficiently removes sulfur and other impurities from crude oil and serves as a miniature refinery to upgrade the crude, a University of Southern California researcher ...
The current industrial method for removal of sulfur from fuels is hydrodesulfurization HDS, which is a high temperature, high pressure catalytic process. This makes HDS a very costly option for deep desulfurization. Moreover, HDS is not effective for removing heterocyclic sulfur compounds such as dibenzothiophene DBT and its derivatives, especially 4,6-dimethyldibenzothiophene 4,6-DMDBT.
Enzymatic Catalysis in Melted Polymer as Green and Reusable Solvent Wu, Xiaoling Ge, Jun CATALYSIS LETTERS.1457 112-120, 2015 2.291 61 Enzymatic Synthesis of High-Molecular-Weight Polybutylene succinate and its Copolymers
2016-11-21Successful removal of these components will determine the efcacy of any treatment strategy for PW. The most common approach to sulfate treatment is by converting it rst into sulde, which is then oxidised to elemental sulfur.
Klubek, B., and Clark, D. P. 1987, Microbial removal of organic sulfur from coal. Report to the US Department of Energy, April 1987, contract DE-FC01-83FE 60339. Google Scholar
Within technical overview sections on such emerging areas as bioprocessing, bioconversion, biosolubilization, biosystems and biocleaning, this handsomely illustrated reference specifically surveys pioneering work in the genetic production of sulfatase enzymes for removing organic sulfur from coal r
2018-2-27The bacteria readily catalyze the dissolution of inorganic sulfur from coal, and recent advances indicate that organic sulfur may also be vulnerable to microbiological attack. Progress in this area suggests that the precombustion desulfurization of sulfur-laden coal is on the horizon.
2015-12-12Humic acid removal from water with polyaluminum coagulants Effect of sulfate on aluminum polymerization. Journal of Environmental Engineering, 2012, 1383, 293-298 39 Changya Chen, Panyue Zhang, Guangming Zeng, Jiuhua Deng, Yu Zhou. Sewage
2012-10-7enzymatic attack on the carbon atom is undesirable for a process designed to remove organic sulfur compounds selectively without oxidizing other aromatics in petro-leum. In the sulfur-specic cleavage of DBT, 2-hydroxy-biphenyl 2-HBP is formed with the loss of sulte. Until recently, no DBT-desulfurizing microorganisms were
A Fe-based ionic liquidFe-ILwas synthesized directly by mixing 12 mole ratio of 1-butyl-3-methylimidazoliumBmimCland FeCl36H2O at room temperature.The Fe-IL is of unstoichiometric BmimFe0.9Cl4.7,and shows high hydrophobicity,thermostability and ...
The emission characteristics of volatile organic sulfur compounds VOSCs released from food waste processing plant were detected with cold enrichment-GCMS. Four main sections of the plant including unloading room, crushing chamber, hydrothermal reactor and aerobic fermentation reactor were selected as sampling points. Results showed that the concentration of VOSCs of the four main sections ...