نتایج جستجو برای: mesoporous alumina desulfurization of heavy oil

تعداد نتایج: 21195766  

2016
Yangang Wang Xia Bai Fei Wang Hengfei Qin Chaochuang Yin Shifei Kang Xi Li Yuanhui Zuo Lifeng Cui

Highly ordered mesoporous graphitic carbon was synthesized from a simple surfactant-assisted nanocasting route, in which ordered mesoporous silica SBA-15 maintaining its triblock copolymer surfactant was used as a hard template and natural soybean oil (SBO) as a carbon precursor. The hydrophobic domain of the surfactant assisted SBO in infiltration into the template's mesoporous channels. After...

To discuss the potential role of the support for iridium catalyst, we have proceeded to prepare a series of supported catalysts with the same active phase content, but different silica content, to elucidate the changes in surface structure and the reaction process of hydrous hydrazine decomposition on catalyst. The obtained iridium catalysts contained 20 wt% of nanoparticles dispersed on spheri...

Journal: :journal of sciences, islamic republic of iran 2011
jamshid raheb

several research groups have attempted to make recombinant bacteria capable of efficient desulfurization of oil fraction. the main aim of this study was to design a recombinant strain in order to desulfurize dibenzothiophen (dbt) and its components found in petroleum. in this study the pvlt31 vector harboring dszabc genes was transferred into recombinant e. coli bl21 which contained the dszd ge...

Journal: :ChemSusChem 2017
Matthew E Potter Kyeong Min Cho Jason J Lee Christopher W Jones

Oxide-supported amine materials are widely known to be effective CO2 sorbents under simulated flue-gas and direct-air-capture conditions. Most work has focused on amine species loaded onto porous silica supports, though potential stability advantages may be offered through the use of porous alumina supports. Unlike silica materials, which are comparably inert, porous alumina materials can be tu...

Journal: :Chinese Journal of Catalysis 2022

Mesoporous high-silica zeolite Y with advantages of improved accessibility acid sites and mass transport properties is highly desired catalytic materials for oil refinery, fine chemistry emerging biorefinery. Here, we report the direct synthesis mesoporous (named MSY, SiO2/Al2O3 ? 9.8) their excellent cracking performance. The obtained MSY are single crystals octahedral morphology, abundant mes...

Journal: :Chemistry, an Asian journal 2017
Miao Zhang Lin Liu Teng He Zhao Li Guotao Wu Ping Chen

Significant progress has been made on the synthesis and application of mesoporous γ-alumina. To date, little attention has been paid to the synthesis of microporous crystalline alumina. Here, fabrication of microporous crystalline γ-alumina using a microporous covalent triazine framework (CTF-1) as a template is described. Microporous crystalline γ-alumina with a micro-meso binary pore system w...

2016
Jamshid Raheb

Desulfurization of fossil fuels demands a high technology as the crude oil is very complex mixture of molecules with a largest hydrocarbons form in composition. Hydrogenic method for desulfurization, takes higher cost and energy and also sulfur is not separated completely from heterocyclic poly-aromatic compounds. Researchers are focused on the use of microbial desulfurization [Biodesulfurizati...

It is necessary to reduce the amount of sulfur in fossil fuels due to direct impact of the quality of these fuels on the environment. In this research, a novel fungus strain of Exophiala spinifera, namely FM, was used to desulfurize dibenzothiophene (DBT) as a model cyclic sulfur compounds in oil and fossil fuels. HPLC analysis indicated that the fungus was capable of reducing 99% of DBT concen...

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