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Cyclohexane Vibronic States: A Combined VUV Spectroscopy and Theoretical Study [PDF]

Molecules
In this work, we provide results from a joint experimental and theoretical study of the vibronic features of cyclohexane (C6H12) in the photon energy range of 6.8–10.8 eV (182–115 nm).
Edvaldo Bandeira, Alessandra S. Barbosa, Nykola C. Jones, Søren V. Hoffmann, Márcio H. F. Bettega, Paulo Limão-Vieira   +5 more
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Mathematical Modeling of Thermally Coupled Cyclohexane Dehydrogenation and Nitrobenzene Hydrogenation Reactors [PDF]

Journal of Chemical and Petroleum Engineering, 2022
This work aims to develop a one-dimensional mathematical model for a novel multi - tubular thermally coupled reactor in the steady-state condition. The mentioned thermally coupled reactor includes the endothermic reaction of cyclohexane dehydrogenation ...
Roozbeh Ghani, Ali Habibi , Amirhosein Yazdanbakhsh   +2 more
doaj   +2 more sources

Enthalpic and Liquid-Phase Adsorption Study of Toluene–Cyclohexane and Toluene–Hexane Binary Systems on Modified Activated Carbons

Molecules, 2021
The liquid-phase adsorption of toluene in cyclohexane and hexane solutions on modified activated carbons was evaluated; the energy involved in the interaction between these solutions and the solids was determined by immersion enthalpies of pure solvents ...
Diana Hernández-Monje, Liliana Giraldo, Juan Carlos Moreno-Piraján   +2 more
doaj   +1 more source

Rhodium-Based Catalysts: An Impact of the Support Nature on the Catalytic Cyclohexane Ring Opening

Nanomaterials, 2023
Because of the growing demand for high-quality fuels, the light cycle oil fraction improvement including cetane number improvement is important. The main way to reach this improvement is the ring opening of cyclic hydrocarbons, and a highly effective ...
Kristina E. Kartavova, Mikhail Yu. Mashkin, Mikhail Yu. Kostin, Elena D. Finashina, Konstantin B. Kalmykov, Gennady I. Kapustin, Petr V. Pribytkov, Olga P. Tkachenko, Igor V. Mishin, Leonid M. Kustov, Alexander L. Kustov   +10 more
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Theoretical analysis based on CFD method for evaluation of Pd-Ag Membrane reactor performance in comparison with conventional reactor during dehydrogenation of cyclohexane [PDF]

مجله مدل سازی در مهندسی, 2020
In the present study, the performance of the palladium-silver membrane reactor during the cyclohexane dehydrogenation (DCH) reaction is modeled and simulated based on the computational fluid dynamics (CFD) method. In recent years, hydrogen production has
kamran ghasemzadeh, Milad Ghahremani
doaj   +1 more source

Effect of Cyclohexane on the Combustion Characteristics of Multi-Component Gasoline Surrogate Fuels

Molecules, 2023
It has been discovered that there is a dynamic coupling between cycloalkanes and aromatics, which affects the number and types of radicals, thereby controlling the ignition and combustion of fuels.
Shunlu Rao, Zhaolei Zheng, Chao Yang
doaj   +1 more source

Intensification of Azeotropic Distillation for Ethanol Dehydration using Data-based Optimization, Steady-state Simulation and Sensitivity Analysis [PDF]

Iranian Journal of Chemical Engineering, 2023
The Ethanol-water separation involves a well-known azeotrope that confines the achievement of the ethanol purity to the values higher than 95 wt% using straightforward distillation.
T. Fattahi, E. Salehi, Z. Hosseini
doaj   +1 more source

Modeling and optimization of a fixed bed catalytic reactor for the cyclohexane dehydrogenation process [PDF]

مجله مدل سازی در مهندسی, 2022
In this paper, the modeling of the industrial cyclohexane dehydrogenation process is done. The proposed configuration consists of a packed bed reactor including Pt/Al2O3 catalyst particles where cyclohexane will be dehydrogenated to significant products ...
Roozbeh Ghani,, Ali Habibi, Amirhosein Yazdanbakhsh   +2 more
doaj   +1 more source

Crystal structure of (+)-(1S,5S,6S,7S,10S,11S,16S)-16-hydroxy-7-(methoxymethoxy)-11,15,18,18-tetramethyl-3,13-dioxo-2,4-dioxatetracyclo[12.3.1.01,5.06,11]octadec-14-en-10-yl benzoate

Acta Crystallographica Section E: Crystallographic Communications, 2021
In the fused tetracyclic system of the title compound, C29H36O9, the five-membered dioxolane ring adopts a twist conformation; the two adjacent C atoms deviate alternately from the mean plane of the other three atoms by −0.252 (6) and 0.340 (6) Å.
Takeshi Oishi, Keisuke Fukaya, Takaaki Sato, Noritaka Chida   +3 more
doaj   +1 more source

Selectivity and efficiency of pyrene attachment to alkanes induced by broadband X-rays

Anais da Academia Brasileira de Ciências, 2003
Bombardment of pyrene-doped n-heneicosane (C21H44) in its orthorhombic solid phase with MeV broadband X-rays results in the formation of both mono- and di-heneicosylpyrenes, whereas the same dose in liquid cyclohexane yields only monosubstituted pyrene.
GERALD O. BROWN, NOEL A. GUARDALA, JACK L. PRICE, RICHARD G. WEISS   +3 more
doaj   +1 more source