Results 71 to 80 of about 10,218 (161)
Revista Colombiana de Biotecnología, 2005 El principal inconveniente en la combustión de los hidrocarburos es la conversión del azufre y el nitrógeno a sus respectivos óxidos, los cuales participan en la formación de lluvia acida y deterioran el medio ambiente e infraestructuras.
Carlos Javier Alméciga-Díaz +2 more
doaj
Indonesian Journal of Chemistry, 2016 Catalyst (NH4)6[b-P2W18O62]/Ta has been synthesized by simple wet impregnation at 30-40 °C under atmospheric conditions using Dawson type polyoxometalate (NH4)6[b-P2W18O62] and tantalum. The catalyst was characterized by FTIR spectrophotometer, XRD, SEM,
Risfidian Mohadi +4 more
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Oxidation of Dibenzothiophene to Dibenzothiophene Sulfone Using TiO2 [PDF]
, 2013 The oxidation of dibenzothiophene (DBT) to dibenzothiophene-sulfone has been considered as an alternate method to remove sulfur from crude oil. This study demonstrates that the oxidative desulfurization (ODS) of DBT to DBT-sulfone occurs using rutile ...
Leal, Juan H.
core +1 more source
Remoção de compostos sulfurados e nitrogenados do gasóleo pesado (GOP) em sistema bifásico pelo Rhodococcus erythropolis ATCC4277 em reator batelada [PDF]
, 2014 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Química, Florianópolis, 2014.A queima de combustíveis fósseis tem liberado uma grande quantidade de poluentes na atmosfera.
Todescato, Diego
core
Dibenzothiophene Catabolism Proceeds via a Flavin-N5-oxide Intermediate
, 2016 The dibenzothiophene catabolic pathway converts dibenzothiophene to 2-hydroxybiphenyl and sulfite. The third step of the pathway, involving the conversion of dibenzothiophene sulfone to 2-(2-hydroxyphenyl)-benzenesulfinic acid, is catalyzed by a unique ...
Tadhg P. Begley (170128) +1 more
core +1 more source
Anaerobic biodesulfurization of thiophenes [PDF]
, 2002 Distillates from crude oil such as diesel and fuel oil may contain significant amounts of dibenzothiophenes and their alkylated derivatives, containing organically bound sulfur.
Marcelis, C.L.M., Marcelis, C.
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Photochemistry of dibenzothiophene-based sulfilimines [PDF]
, 2007 Azides have been the most extensively investigated precursors for the photochemical generation of nitrenes. Direct spectroscopic studies as well as indirect product studies have provided adequate evidence for the intermediacy of nitrenes, in at least ...
Desikan, Vasumathi
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Novel dibenzothiophene chromophores with peripheral barbituric acceptors
, 2019 A series of novel chromophores based on central 2,8-disubstituted dibenzothiophene (DBT) or dibenzothiophene-S,S-dioxide (DBTO) has been designed and prepared.
Pytela, Oldřich +6 more
core +3 more sources
, 1988 Dibenzothiophene is degraded to 3-hydroxy-2-formyl benzothiophene by various bacteria, including a strain of Pseudomonas putida that also forms dibenzothiophene sulfone via an alternate pathway. By using these end products as substrates, mixed enrichment
Mormile, Melanie R., Atlas, Ronald M.
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CeramicsNanopowders of hydroxyapatite (HA) and Fe-substituted hydroxyapatite (HAFe) were synthesized by wet precipitation on either MCM-41 (a synthetic, mesoporous aluminosilicate material) or an aluminum-containing MCM-41 (AlMCM) support.
Nadezhda O. Donskaya +14 more
doaj +1 more source