Results 21 to 30 of about 12,710 (277)

Synthesis of trimetallic nanocatalysts of alumina supported Ni-Mo-W by ultrasound-precipitation method for thiophene hydrodesulfurization [PDF]

شیمی کاربردی روز, 2020
In this study trimetallic Ni-Mo-W/alumina catalysts with different percentages of tungsten were synthesized by a hybrid method of ultrasound-precipitation.
Dariush Moghaddam Nejad, Somaiyeh Allahyari, Nader Rahemi   +2 more
doaj   +1 more source

Boosting Dibenzothiophene Biodesulfurization Through Implantation of a Refactored DBT Pathway in a Tailored Pseudomonas putida Chassis. [PDF]

Microb Biotechnol
This study engineered a Pseudomonas putida strain to efficiently remove sulfur from dibenzothiophene (DBT) by reordering and optimising the dsz operon from Rhodococcus qingshengii IGTS8, enhancing catalytic activity and stability. The modified strain, P. putida DS006, showed high desulfurization efficiency in model biodesulfurization systems.
Glekas PD, Papageorgopoulos I, Damalas SG, de Lorenzo V, Mamma D, Martínez-García E, Hatzinikolaou DG.   +6 more
europepmc   +2 more sources

Hydrodesulfurization of benzothiophene on Ni2P surface

Energy Exploration & Exploitation, 2020
The study of benzothiophene hydrodesulfurization reaction path contribute to clarifying the mechanism of hydrodesulfurization (HDS) of heavy oil. In this work, experiments and simulations were combined to study the reaction pathway of benzothiophene ...
Riyi Lin, Huida Pan, Weidong Xu, Liqiang Zhang, Xinwei Wang, Jianliang Zhang, Kai Chen   +6 more
doaj   +1 more source

Testing conditions for CoMo HDS catalyst in the kinetic region: integrated approach using the math calculations and catalytic experiments

Chimica Techno Acta, 2023
The main idea of the investigation was to define testing parameters with the lowest influence of internal and external diffusion on catalytic activity in hydrodesulfurization of dibenzothiophene.
Polina P. Mukhacheva, Yuliya V. Vatutina, Ivan A. Mik, Ksenia A. Nadeina, Maxim O. Kazakov, Oleg P. Klenov, Oleg V. Klimov, Aleksandr S. Noskov   +7 more
doaj   +1 more source

Infrared Spectroscopic Evidence of WS2 Morphology Change With Citric Acid Addition and Sulfidation Temperature

Frontiers in Chemical Engineering, 2022
MS2 morphology is strongly influenced by several parameters including the addition of a chelating agent and sulfidation temperature. In this work, we report the use of citric acid as chelating agent in order to prepare a series of WS2/Al2O3 catalysts ...
Luz A. Zavala-Sanchez, Françoise Maugé, Xavier Portier, Laetitia Oliviero   +3 more
doaj   +1 more source

Hydrodesulfurization of Thiophene over Ni‐Doped MoS ₂ ‐Supported Mesoporous Silica [PDF]

ChemCatChem, Volume 17, Issue 22, November 24, 2025.
The catalytic conversion of thiophene to paraffinic hydrocarbons is presented using mesoporous SBA‐15‐supported MoS2 and NiMoS2 catalysts. Few‐layer MoS2 nanosheets decorate the surface and pore walls, while Ni incorporation enhances hydrogen activation and promotes NiMoS phases.
Joël Aguesse, Abdallah Amedlous, Chunzheng Wang, X. Portier, Francesco Dalena, Mathias Barreau, Davide Salusso, Spyridon Zafeiratos, Valérie Ruaux, Nicolas Barrier, Svetlana Mintova   +10 more
openalex   +2 more sources

CHARACTERIZATION AND HYDROTREATMENT OF SHALE OILS OF MONGOLIAN OIL SHALES; pp. 168–182 [PDF]

Oil Shale, 2018
The shale oils of oil shales from Mongolian Khoot, Tesegtiin honhor, Uvurjargalant and Zuun bulag deposits, as well as their distillates were studied by the hydrodesulfurization (HDS), hydrodenitrogenation (HDN) and hydrodeoxygenation (HDO) processes for
Gantumur Enkhjargal, Byambajav Enkhsaruul, Dalantai Monkhoobor, Janchig Narangerel, SUGIMOTO YOSHIKAZU   +4 more
doaj   +1 more source

Oxalic Acid as a Hydrogen Donor for the Hydrodesulfurization of Gas Oil and Deoxygenation of Rapeseed Oil Using Phonolite-Based Catalysts

Molecules, 2020
The use of renewable local raw materials to produce fuels is an important step toward optimal environmentally friendly energy consumption. In addition, the use of these sources together with fossil fuels paves the way to an easier transition from fossil ...
José Miguel Hidalgo Herrador, Jakub Fratczak, Zdeněk Tišler, Hector de Paz Carmona, Romana Velvarská   +4 more
doaj   +1 more source

The Effects of pH and Chelating Agent on Synthesis and Characterization of Ni Mo/γ- Alumina Nanocatalyst for Heavy Oil Hydrodesulfurization [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2021
In this research, various organic additives (as a chelating agent) were used to prepare NiMo/ 𝛾-Al2O3 bimetallic catalysts. Then effects of additives and pH variation were studied on textural properties, morphology, and size of nanocatalyst particles ...
Soheila Sheibani, Karim Zare, Seyed Mahmoud Mousavi Safavi   +2 more
doaj   +1 more source

EFFECT OF CERIUM ON HYDRODESULFURIZATION CATALYST PERFORMANCE

Indonesian Journal of Chemistry, 2010
Effect of cerium on hydrodesulfurization catalysts performance have been investigated. The catalysts were Pt or Pt-Ce supported on zeolite. The Pt/Zeolite catalyst was prepared by wet impregnation method, while that of Pt-Ce/Zeolite catalyst was prepared
Triyono Triyono, Wega Trisunaryanti
doaj   +1 more source