enzymatic removal of organic sulfur from coal

MICROBIAL SULFUR METABOLISM OF Title

201883 ensp 0183 enspmicrobial removal of inorganic s ulf ur 15 16 The remo al of organic sulfur from coal has also been attempted for a decade 1719 but it seems very difficult because the organic sulfur in coal is covalently bound into its large cbmplex structure Among the organic sulfur compounds present in fossil 2

Characteristics and Adsorption of Volatile Organic Sulfur

The emission characteristics of volatile organic sulfur compounds VOSCs released from food waste processing plant were detected with cold enrichmentGC MS 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

Evaluation of the Removal of Organic Sulfur from Coal

Request PDF on ResearchGate Evaluation of the Removal of Organic Sulfur from Coal Organic sulfur was removed from three bituminous coals by the oxydesulfurization process developed at the Ames

Bioprocessing and Biotreatment of Coal Taylor amp Francis

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

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44 Mathematical modeling of simultaneous carbonnitrogensulfur removal from industrial 26 sulfur reclamation oriented biotechnology of denitrifying sulfide

Organic sulfur removal from coal by microorganisms from

Thermophilic mixed cultures were identified that removed 90 of pyritic and sulfate sulfur and 33 of the organic sulfur from North Dakota lignite The 30–40 organic desulfurization barrier was studied for possible inhibitors to organic sulfur removal from coal

OSTI GOV Technical Report Enzymatic desulfurization of coal

2019723 ensp 0183 enspAbstract Our experimental approach focuses on the use of enzymes which alyze the addition of oxygen to organic compounds In tailoring the appliion of these enzymes to coal processing we are particularly interested in ensuring that oxidation occurs at sulfur and not at

Sulfur removal from coal through multiphase media

Sulfur removal from coal through multiphase media containing bioalysts Lee Kwang Il Yen Teh Fu 19900101 00 00 00 A novel bioprocess using micelle bioalysts was developed to minimize several disadvantages of conventional microbial coal desulfurization processes The multiphase bioalysis process consists of an organic medium

Importance of Structural and Chemical Heterogeneity of

200581 ensp 0183 enspThe performance of various activated carbons obtained from different carbon precursors i e plastic waste coal and wood as adsorbents for the desulfurization of liquid hydrocarbon fuels was evaluated To increase surface heterogeneity the carbon surface was modified by oxidation with ammonium persulfate The results showed the importance of activated carbon pore sizes and surface

Enzymatic desulfurization of dibenzothiophene by a cell

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A comparison of several organosolv pretreatments for improving the enzymatic hydrolysis of wheat straw Substrate digestibility Effect of Organic Acid Treatment on

Microbiological Mining spaceshipearth

2018227 ensp 0183 enspThe bacteria readily alyze the dissolution of inorganic sulfur from coal and recent advances indie that organic sulfur may also be vulnerable to microbiological attack Progress in this area suggests that the precombustion desulfurization of sulfurladen coal is on the horizon

Biodesulfurization of water soluble coal derived material

Three coals two coal solubilization procedures and two methods of biodesulfurization were examined The results of these experiments reveal that the microbial removal of significant amounts of organic sulfur from water soluble coal derived material with treatment times as brief as 24 h is possible

Chemical Industry and Engineering Progress

Studies on extraction characteristics of volatile organic compounds and mechanical properties change with methyl silicone Preparation of zinc ferrite sorbent by

Hydrogen sulfide Wikipedia

2019729 ensp 0183 enspHydrogen sulfide is a central participant in the sulfur cycle the biogeochemical cycle of sulfur on Earth In the absence of oxygen sulfurreducing and sulfatereducing bacteria derive energy from oxidizing hydrogen or organic molecules by reducing elemental sulfur or sulfate to hydrogen sulfide

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Evaluating Advanced Power Plant Carbon Capture

20141119 ensp 0183 enspEvaluating Advanced Power Plant Carbon Capture Technologies Edward S Rubin Sulfur Removal Combined Cycle Power Plant O 2 Air CO 2 Quench H 2 System H 2 H 2O Air Sulfur Recovery Gasifier Coal H 2O Metal organic frameworks Enzymatic membranes Present Cost Reduction Benefit 5 years 10 years 15 years 20 years

Water Free FullText Use of Bacteria and Synthetic

In highsulfur coals the relative proportion of aliphatic structures to total organic sulfur appears to be in the range of 30–50 Either in organic or pyritic form sulfur amounts may depend on coal rank where higher coal rank has higher amount of labile sulfurcontaining compounds such as

Removal of Organic Sulfur from Coal by Reaction with

1986918 ensp 0183 enspThe processing of high organic sulfur content coals with methanol and ethanol as supercritical solvents has resulted in reduction in sulfur concentrations exceeding 50 Since the total sulfur removed exceeds the mineral sulfur content of the coal processed it is evident that organic sulfur is being removed during the reaction

Potential use of oxidative enzymes for the

Enzymatic oxidation of organic pollutants In addition to their potential use as alysts for selective oxidation reactions such as The mechanism of color removal 92

Process Considerations in the Biodesulfurization of Crude

20001020 ensp 0183 enspThe enzymatic pathway existing in Rhodococcus has been demonstrated to oxidatively desulfhrize the organic sulfbr occurring in dibenzothiophene while leaving the hydrocarbon intact In order for biodesulfiization to realize commercial success a variety of process considerations must be addressed including reaction rate emulsion formation and

Bioelectrochemical approaches for removal of

20161121 ensp 0183 enspincrease in enzymatic activity and establishment of direct electron transfer contacts Microbial capacitive desalination for integrated organic matter and salt removal

An evaluation of desulfurization technologies for sulfur

The current industrial method for removal of sulfur from fuels is hydrodesulfurization HDS which is a high temperature high pressure alytic 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 6dimethyldibenzothiophene 4 6DMDBT