Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Joy H. Tannous"'
Autor:
Rachid Ismail, Joy H. Tannous
Publikováno v:
Case Studies in Chemical and Environmental Engineering, Vol 10, Iss , Pp 100932- (2024)
The effect of storage time and solvent on 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical stability was studied using electron spin resonance. Tetrahydrofuran affected the g-factor due to a rearrangement within the DPPH structure that changed the radica
Externí odkaz:
https://doaj.org/article/a15342386154483fa6d7aa4fdb3910e9
Publikováno v:
Processes; Volume 11; Issue 7; Pages: 2067
The persistent free radical content in petroleum is of the order 1018 spins/g (1 μmol/g), with higher and lower values found depending on origin and in different distillation fractions. The field of persistent free radicals in petroleum was reviewed
Publikováno v:
Energy & Fuels. 36:5253-5266
Autor:
Arno de Klerk, Joy H. Tannous
Publikováno v:
Energy & Fuels. 34:1698-1709
It was speculated that hydrogen transfer was not the only type of transfer reaction that could take place during thermal conversion, and that methyl transfer could also take place. There was a larg...
Autor:
Joy H. Tannous, Arno de Klerk
Publikováno v:
Energy & Fuels. 33:7083-7093
Electron spin resonance (ESR) spectroscopy was employed to perform quantitative analysis of the free radical content of oilsands bitumen, asphaltenes, deasphalted oil, vacuum residue, and vacuum ga...
Publikováno v:
Fuel. 310:122182
Autor:
Joy H. Tannous, Arno de Klerk
Publikováno v:
Fuel. 277:118210
Sulfur ring-opening of thiophenes present in heavy oils is a challenge, particularly for non-catalytic thermal processes. In this work, sulfur ring-opening of thianaphthene was studied in a thermal conversion process (400 °C, 2 MPa) in the absence o
Autor:
Joy H. Tannous, Arno de Klerk
Publikováno v:
Fuel. 255:115786
New asphaltenes are formed during the thermal conversion of heavy oil. When new asphaltenes are formed from deasphalted oil, it erodes the conversion advantage provided by solvent deasphalting prior to visbreaking. The postulate that asphaltenes form
Autor:
Nissrine El Hassan, Marie-Nour Kaydouh, Leila Karam, Henri El Zakhem, Sandra Casale, Joy H. Tannous
Publikováno v:
MATEC Web of Conferences, Vol 171, p 01003 (2018)
Catalysts prepared using three dimensional SBA-16 silica support (composed of micropores and cage-like mesopores) were tested in the reaction of methane dry reforming, in comparison with 2D hexagonal mesoporous SBA-15 support. The samples were evalua
Autor:
Maqsood, Hajra1 (AUTHOR), Abu-Jdayil, Basim1 (AUTHOR), Tannous, Joy H.1 (AUTHOR) j.tannous@uaeu.ac.ae
Publikováno v:
International Journal of Molecular Sciences. Oct2024, Vol. 25 Issue 20, p11047. 29p.