Results 41 to 50 of about 1,012 (184)

Hydrotreatment of Nylon 66 and Amide Model Compounds Over Sulfided NiMo Catalysts

ChemCatChem, Volume 18, Issue 9, 14 May 2026.
Hydrotreatment of nylon‐66 and the model amide N,N‐dibutylhexanediamide over sulfided NiMo/Al2O3 reveals competing hydrodenitrogenation and hydrodeoxygenation pathways, without formation of heterocyclic products. Pathway selectivity is influenced by reaction conditions and differs between the model compound and the real nylon sample.
Boda Yang, Cheng Zhu, Oliver Y. Gutiérrez, Sungmin Kim, Huamin Wang   +4 more
wiley   +1 more source

Comparative Study of New Re-Ni-Mo/Al2o3 and Conventional Hydrodesulphurization Catalyst

Iraqi Journal of Chemical and Petroleum Engineering, 2015
New types of hydrodesulfurization (HDS) catalyst Re-Ni-Mo/ γ-Al2O3 was prepared and tested separately with two prepared conventional HDS catalysts (Ni-Mo/ γ-Al2O3 and Co-Mo//γ-Al2O3) by using a pilot plant hydrotreatment unit.
Abdul Halim A. Karim Mohammed, Hussein Qasim Hussein, Tariq M. Naife   +2 more
doaj  

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

Acid Modification of the Unsupported NiMo Catalysts by Y-Zeolite Nanoclusters

Crystals, 2019
Unsupported NiMo catalyst has high hydrogenation activity due to its high active site distribution. However, low specific surface area and pore distribution greatly limit the efficient utilization of the active components. The Y-zeolite nanoclusters were
Chengwu Dong, Changlong Yin, Tongtong Wu, Zhuyan Wu, Dong Liu, Chenguang Liu   +5 more
doaj   +1 more source

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

Steaming of Hydrodesulfurization Catalysts

Journal of The Japan Petroleum Institute, 1970
Effects of steam-aging on the activity and physical properties of commercial hydrodesulfurization catalysts were studied under such conditions that the catalysts would be subjected to coke-burning regeneration in the commercial units. The steam-aging experiments were carried out using a 200cc autoclave under the conditions of 1-21kg/cm2-absolute and ...
Takaoka, Hideo, Iijima, Koichiro, Shibata, Yukio, Itoh, Satoru   +3 more
openaire   +2 more sources

Nonthermal Plasma Regeneration of Coke‐Deactivated Catalysts Used for Plasma‐Catalytic VOC Removal

Plasma Processes and Polymers, Volume 23, Issue 4, April 2026.
The research focused on the regeneration of coke‐deactivated catalysts previously used for plasma‐catalytic toluene removal from the air. Three regeneration techniques (plasma, ozone and thermal) were compared. The plasma regeneration showed the highest efficiency in removing the coke deposits, whereas the effect of ozone and heat was negligible ...
Jana Kšanová, Richard Cimerman, Oleksandr Galmiz, Peter Švec, Karol Hensel   +4 more
wiley   +1 more source

Determining the Optimum Temperature Path Versus the Catalyst Working Time in a Trickle Bed Diesel Hydrodesulfurization Reactor [PDF]

Chemical and Biochemical Engineering Quarterly
This study consists of four main parts. First, a heterogeneous reactor model was developed to simulate a diesel hydrodesulfurization (HDS) reactor with catalyst deactivation. Second, operating conditions were investigated.
H. R. Homayonfar, H. A. Ebrahim, M. J. Azarhoosh   +2 more
doaj   +1 more source

Biomanufacturing and Scale‐Up: Pathways to Biochemicals, Biofuels, and Biomaterials

Microbial Biotechnology, Volume 19, Issue 8, August 2026.
Carolina A. Barcelos, Pavel Dvořák, Charles J. Foster, Juan Nogales, Juan L. Ramos, Shamlan M. S. Reshamwala, Davinia Salvachúa   +6 more
wiley   +1 more source

Adsorption Desulfurization of Liquid Fuel Using a Blend of Date Stones and Walnut Shells by Box–Behnken Design

Asia-Pacific Journal of Chemical Engineering, Volume 21, Issue 2, March/April 2026.
ABSTRACT A specific microporous KOH/activated‐biochar (K/BC) was produced from a blend of date stones (DS) and walnut shells (WS) and used in the adsorptive desulfurization (ADS) of two types of model fuel DBT/n‐hexane (S‐hex), DBT/cyclohexane (S‐cyclohex).
Ameen L. Alyawer, Marwa H. Altamer, Ahmed M. Khalaf, Amena F. Al‐Omari, Abdelrahman B. Fadhil   +4 more
wiley   +1 more source