Results 41 to 50 of about 1,011 (146)

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

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  

Hydrodesulfurization of Dibenzothiophene: A Machine Learning Approach

ChemistryOpen, Volume 13, Issue 9, September 2024.
This work analyzes the hydrodesulfurization (HDS) process by compiling data on catalysts derived from MoS2, including their composition, structure, and experimental conditions. Using supervised machine learning methods such as regularized regression and random forest, the study estimates the conversion of DBT and the reaction selectivity.
Guadalupe Castro, Julián Cruz‐Borbolla, Marcelo Galván, Alfredo Guevara‐García, Joel Ireta, Myrna H. Matus, Amilcar Meneses‐Viveros, Luis Ignacio Perea‐Ramírez, Miriam Pescador‐Rojas   +8 more
wiley   +1 more source

Synthesis, Characterization and Application of 1‐Butyl‐3 Methylimidazolium Chloride as Green Material for Extractive Desulfurization of Liquid Fuel

The Scientific World Journal, Volume 2013, Issue 1, 2013., 2013
The possible application of imidazolium ionic liquids as energy‐efficient green material for extractive deep desulfurization of liquid fuel has been investigated. 1‐Butyl‐3‐methylimidazolium chloride [BMIM]Cl was synthesized by nucleophilic substitution reaction of n‐methylimidazolium and 1‐chlorobutane.
Swapnil A. Dharaskar, Mahesh N. Varma, Diwakar Z. Shende, Chang Kyoo Yoo, Kailas L. Wasewar, P. Granger, S. Qamar, N. Raos, N. Rowson, P. Samaras   +9 more
wiley   +1 more source

Enhancing Agricultural Biogas Desulfurization: Improving Cost-Efficiency and Robustness Through Micro-Aeration with Psychrophilic Anaerobic Liquid/Solid Media

Agriculture
This study endeavors to develop an economical and user-friendly biological sulfide oxidation system and explore its mechanism for generating biological elemental sulfur under micro-aerobic conditions using psychrophilic anaerobically digested media ...
Rajinikanth Rajagopal, Bernard Goyette
doaj   +1 more source