Results 41 to 50 of about 406 (161)

Carbon Nanomaterials for the Adsorptive Desulfurization of Fuels

Journal of Nanotechnology, Volume 2019, Issue 1, 2019., 2019
The increasing demand for cleaner fuels and the recent stringent regulations of commercial fuel specifications have driven the research of alternative methods to upgrade the current industrial desulfurization technology. Adsorptive desulfurization, the removal of refractory sulfur compounds using appropriate selective tailor‐made adsorbents, has shown ...
Efstratios Svinterikos, Ioannis Zuburtikudis, Mohamed Al-Marzouqi, Kunal Mondal   +3 more
wiley   +1 more source

Thermophilic carbon-sulfur-bond-targeted biodesulfurization [PDF]

Applied and Environmental Microbiology, 1997
Petroleum contains many heterocyclic organosulfur compounds refractory to conventional hydrodesulfurization carried out with chemical catalysts. Among these, dibenzothiophene (DBT) and DBTs bearing alkyl substitutions are representative compounds.
J, Konishi, Y, Ishii, T, Onaka, K, Okumura, M, Suzuki   +4 more
openaire   +2 more sources

Phylogenetic Analysis and Screening of Antimicrobial and Antiproliferative Activities of Culturable Bacteria Associated with the Ascidian Styela clava from the Yellow Sea, China

BioMed Research International, Volume 2019, Issue 1, 2019., 2019
Over 1,000 compounds, including ecteinascidin‐743 and didemnin B, have been isolated from ascidians, with most having bioactive properties such as antimicrobial, antitumor, and enzyme‐inhibiting activities. In recent years, direct and indirect evidence has shown that some bioactive compounds isolated from ascidians are not produced by ascidians ...
Lei Chen, Xue-Ning Wang, Chang-Ming Fu, Guang-Yu Wang, Stefano Pascarella   +4 more
wiley   +1 more source

Isolation and characterization of sulfur-oxidizing bacteria at the Ilam gas refinery in Iran [PDF]

Advances in Environmental Technology
Natural gas is a critical energy resource, but sour gas, characterized by high hydrogen sulfide (H₂S) content, poses significant environmental and operational challenges, including corrosion, toxicity, and air pollution.
Tayebeh Karimi, Fazel Pourahmad, Ehsan Noorollahi   +2 more
doaj   +1 more source

Titanium Dioxide as a Catalyst Support in Heterogeneous Catalysis

The Scientific World Journal, Volume 2014, Issue 1, 2014., 2014
The lack of stability is a challenge for most heterogeneous catalysts. During operations, the agglomeration of particles may block the active sites of the catalyst, which is believed to contribute to its instability. Recently, titanium oxide (TiO2) was introduced as an alternative support material for heterogeneous catalyst due to the effect of its ...
Samira Bagheri, Nurhidayatullaili Muhd Julkapli, Sharifah Bee Abd Hamid, Alexander Vorontsov   +3 more
wiley   +1 more source

Synthesis of Multiwalled Carbon Nanotubes‐Titania Nanomaterial for Desulfurization of Model Fuel

Journal of Nanomaterials, Volume 2014, Issue 1, 2014., 2014
This work reported on the development of novel nanomaterials of multiwalled carbon nanotubes doped with titania (CNT/TiO2) for the adsorptive desulfurization of model fuel oils. Various analytical techniques such as field emission scanning electron microscope (FESEM), energy dispersive X‐ray spectroscopy (EDX), and Fourier transform infrared ...
Tawfik A. Saleh, Mohammad N. Siddiqui, Abdulrahman A. Al-Arfaj, Antonios Kelarakis   +3 more
wiley   +1 more source

Biocatalytic desulfurization capabilities of a mixed culture during non-destructive utilization of recalcitrant organosulfur compounds

Frontiers in Microbiology, 2016
We investigated the biodesulfurization potential of a mixed culture AK6 enriched from petroleum hydrocarbons-polluted soil with dibenzothiophene (DBT) as a sulfur source.
Wael eIsmail, Wael Samir El-Sayed, Abdul Salam eAbdul Raheem, Magdy El-Said Mohamed, Ashraf eEl Nayal   +4 more
doaj   +1 more source

Novel Oxidative Desulfurization of a Model Fuel with H2O2 Catalyzed by AlPMo12O40 under Phase Transfer Catalyst‐Free Conditions

Journal of Applied Chemistry, Volume 2013, Issue 1, 2013., 2013
A novel process was developed for oxidative desulfurization (ODS) in the absence of a phase transfer catalyst (PTC) using only Keggin heteropolyacids and their aluminum salts as catalysts. Reactions were performed in biphasic mixtures of isooctane/acetonitrile, with dibenzothiophene (DBT) as a model sulfur compound and hydrogen peroxide as the oxidant.
Márcio José da Silva, Lidiane Faria dos Santos, Stoyan Karakashev   +2 more
wiley   +1 more source

Biodesulfurization in Biphasic Systems Containing Organic Solvents [PDF]

Applied and Environmental Microbiology, 2006
ABSTRACT Biphasic systems can overcome the problem of low productivity in conventional media and have been exploited for biocatalysis. Solvent-tolerant microorganisms are useful in biotransformation with whole cells in biphasic reactions.
Fei, Tao, Bo, Yu, Ping, Xu, Cui Qing, Ma
openaire   +2 more sources

The Study of Biological Technologies for the Removal of Sulfur Compounds [PDF]

Journal of Sciences, Islamic Republic of Iran, 2017
Combustion of sulfur components of fossil fuels such as oil causes the emission of SO2 in the atmosphere and lead to the formation of acidic rain in the environment.
F. Nazari, ME. Kefayati, J. Raheb
doaj