Results 91 to 100 of about 8,568 (232)

Optimization of a novel catalytic extractive oxidative process for desulfurization of model and real fuels using a metal-free heterogenous catalyst (B4C)

Case Studies in Chemical and Environmental Engineering
In this study, a cheap, effective and stable catalyst has been applied to the extractive oxidative desulfurization (EODS) process for the first time.
Ali Hesami, Shahrokh Shahhosseini
doaj   +1 more source

Platinum-group elements, S, Se and Cu in highly depleted abyssal peridotites from the Mid-Atlantic Ocean Ridge (ODP Hole 1274A): Influence of hydrothermal and magmatic processes [PDF]

, 2013
Highly depleted harzburgites and dunites were recovered from ODP Hole 1274A, near the intersection between the Mid-Atlantic Ocean Ridge and the 15°20′N Fracture Zone.
A Büchl, A Büchl, A Delacour, A Holzheid, A Luguet, A Luguet, A Luguet, A Luguet, A Peregoedova, AS Bell, BW Mountain, C Bockrath, C Marchesi, C-TA Lee, C-Z Liu, Carlos J. Garrido, CH Gammons, CL Peach, Claudio Marchesi, CS Finnigan, D Acken van, D Savard, DG Pearson, DG Pearson, E Aldanmaz, F Klein, Fernando Gervilla, G Delpech, H Becker, H Becker, H Palme, H Paulick, HM Helmy, HM Prichard, HSC O’Neill, J Escartín, J Escartín, J Harvey, J Harvey, J-P Lorand, J-P Lorand, J-P Lorand, J-P Lorand, J-P Lorand, J-P Lorand, J-P Lorand, J-P Lorand, J-P Lorand, JA Mavrogenes, Jason Harvey, JC Alt, JC Alt, JC Alt, JE Snow, JE Snow, Jean-Pierre Lorand, JH Crocket, JM Brenan, JM Brenan, José María González-Jiménez, JW Morgan, K Hanghøj, Károly Hidas, L Rose-Weston, M Cannat, M Fischer-Gödde, M Godard, M Rehkämper, M Seyler, M Yamamoto, ME Fleet, ME Fleet, MR Handler, MR Handler, N Shirai, O Alard, O Alard, P Pan, R Shi, ROC Fonseca, S König, S-J Barnes, SA Fellows, SA Wood, SA Wood, SA Wood, SJ Barnes, T Fujiwara, T Meisel, T Richardson, VJM Salters, W Bach, W Bach, WD Maier, WF McDonough, Y Xiong, Z Wang, Z Xiao   +97 more
core   +1 more source

Recycling of Mill Scale Into High‐Purity Iron Through Hydrogen‐Based Reduction

steel research international, EarlyView.
Mill scale, an iron oxide–rich steel by‐product, is difficult to recycle due to impurities. This study evaluates hydrogen‐based direct reduction and hydrogen plasma smelting reduction as low‐carbon recycling routes. Impurity segregation limits reduction kinetics. Direct reduction achieves 92% conversion in 180 min, while plasma reduction reaches 91% in
Nathalia C. Verissimo, Anumoy Ganguly, Lucas Varoto, Tim M. Schwarz, Jean‐Baptiste Letz, Ubaid Manzoor, Laurine Choisez, Dierk Raabe, Isnaldi R. Souza Filho   +8 more
wiley   +1 more source

The Application of Hydrochar Composite Briquettes for Sustainable Slag Foaming in the Electric Arc Furnace Process

steel research international, EarlyView.
Hydrochar‐mill‐scale briquettes with varying C/O molar ratios (0.07–0.90) have been tested at 1650 °C to evaluate their slag foaming performance for electric arc furnace application. All seven briquette recipes developed succeed in promoting slag foaming.
Yu‐Chiao Lu, Andrey Karasev, Björn Glaser, Chuan Wang   +3 more
wiley   +1 more source

Photocatalytic Activity and Mechanical Properties of Cements Modified with TiO2/N [PDF]

, 2019
In this paper, studies of the mechanical properties and photocatalytic activity of new photoactive cement mortars are presented. The new building materials were obtained by the addition of 1, 3, and 5 wt % (based on the cement content) of nitrogen ...
Janus, Magdalena, Kusiak-Nejman, Ewelina, Morawski, Antoni W., Mądraszewski, Szymon, Stephan, Dietmar, Zając, Kamila   +5 more
core   +1 more source

Intensification of diesel oxidative desulfurization via hydrodynamic cavitation

Ultrasonics Sonochemistry, 2019
A Hydrodynamic Cavitation Assisted Oxidative Desulfurization (HCAOD) process was applied for treatment of diesel fuel feedstock using hydrogen peroxide and formic acid as the oxidant and catalyst, respectively. Investigation on the effect of main process variables including pressure drop (3-6 bar), time of treatment (10-30 min) and formic acid to ...
Soroush, Baradaran, Mohammad Taghi, Sadeghi   +1 more
openaire   +2 more sources

ZnO‐Functionalized Silicon Carbide Ceramic Membranes for Removing Impurities From Biodiesel

International Journal of Ceramic Engineering &Science, Volume 8, Issue 3, May 2026.
Silicon carbide (SiC) ceramic membranes functionalized with zinc oxide (ZnO) were assessed for biodiesel purification through crossflow filtration. The ZnO–SiC membranes effectively retained metallic impurities, especially calcium, sodium, and phosphorus, achieving levels that meet biodiesel quality standards.
Arthur Santos Romero, Nilanjan Santra, Nijhuma Kayal, Nahum Travitzky, J. Vladimir Oliveira, Murilo Daniel de Mello Innocentini, Dachamir Hotza   +6 more
wiley   +1 more source

Desulfurization of AL-Ahdab Crude Oil using Oxidative Processes

Journal of Engineering, 2015
Two different oxidative desulfurization strategies based on oxidation/adsorption or oxidation/extraction were evaluated for the desulfurization of AL-Ahdab (AHD) sour crude oil (3.9wt% sulfur content).
Neran Khalel Ibrahim, Prof. Dr., Saja Mohsen Jabbar, Ass. Lect.   +1 more
doaj   +2 more sources

Development of Peptoid-Based Ligands for the Removal of Cadmium from Biological Media. [PDF]

, 2015
Cadmium poisoning poses a serious health concern due to cadmiums increasing industrial use, yet there is currently no recommended treatment. The selective coordination of cadmium in a biological environment-i.e.
Francis, Matthew, Knight, Abigail, Zhou, Effie   +2 more
core   +2 more sources

Desulfurization of Benzothiophene Derivatives by Solvent Extraction Coupled With Oxidation Using Oxomolybdenum(VI) Bis(pyrazolyl)methane Catalysts

European Journal of Inorganic Chemistry, Volume 29, Issue 13, 1 May 2026.
A polymeric hybrid material formulated as [MoO3(bis(pyrazolyl)methane)] has been prepared and used as a catalyst precursor for the complete oxidative desulfurization of a model diesel containing recalcitrant benzothiophene derivatives. The precursor is converted in situ to an oxodiperoxo active species which is retained in the recyclable extractant ...
Ana C. Gomes, Fátima Mirante, Isabel S. Gonçalves, Martyn Pillinger, Salete S. Balula   +4 more
wiley   +1 more source