Results 11 to 20 of about 12,867 (222)

Catalytic cracking of heavy naphtha-range hydrocarbons over different zeolites structures

open access: yesFuel Processing Technology, 2014
Abstract The effects of textural, structural, morpholgical, and acidic properties of HZSM-5, H-mordenite and (MFI/MOR) composite zeolite on the catalytic cracking of heavy naphtha-range hydrocarbons (dodecane, iso-octane, and ethylbenzene) as well as heavy naphtha were studied.
Abdallah A. Al-Shammari   +6 more
openaire   +3 more sources

Experimental study of Iranian heavy crude oil viscosity reduction by diluting with heptane, methanol, toluene, gas condensate and naphtha

open access: yesPetroleum, 2016
Due to the high viscosity of heavy crude oils, production from these reservoirs is a demanding task. To tackle this problem, reducing oil viscosity is a promising approach.
Amir Hossein Saeedi Dehaghani   +1 more
doaj   +3 more sources

Optimization of the reaction parameters of heavy naphtha reforming process using Pt-Re/Al2O3 catalyst system

open access: yesEgyptian Journal of Petroleum, 2017
One of the most significant procedures in oil refineries is naphtha catalytic reforming unit in which high octane gasoline is gained. Normally, in oil refineries, flow instability in the composition of feedstock can affect the product quality. The aim of
Hussien A. Elsayed   +4 more
doaj   +3 more sources

Optimization of Batch Extraction of Aromatics from Reformed Heavy Naphtha by Response Surface Methodology

open access: yesTikrit Journal of Engineering Sciences
This study presents an optimization approach for batch extraction of aromatics from reformed heavy naphtha, provided by Al-Dora refinery in Iraq, using furfural solvent.
Marwa Asad Salih, Raghad F. Almilly
doaj   +2 more sources

An automatic PNA analyser for (heavy) naphtha [PDF]

open access: yesChromatographia, 1971
Determination of paraffins (P) and naphthenes (N) by the 13X molecular-sieves method has to be preceded by a separation of PN from A. If one wants to perform the latter separation by gas chromatography, one is faced with the usually underestimated problem of boiling-point separation counteracting type separation.
H. Boer, P. van Arkel
openaire   +1 more source

Dissolving Precipitated Asphaltenes Inside Oil Reservoirs Using Local Solvents

open access: yesIraqi Journal of Chemical and Petroleum Engineering, 2020
There are several oil reservoirs that had severe from a sudden or gradual decline in their production due to asphaltene precipitation inside these reservoirs.
Laith Warid Farhan   +2 more
doaj   +1 more source

Removal of Vanadium and Nickel Ions from Iraqi Atmospheric Residue by Using Solvent Extraction Method

open access: yesIraqi Journal of Chemical and Petroleum Engineering, 2021
Iraqi crude Atmospheric residual fraction supplied from al-Dura refinery was treated to remove metals contaminants by solvent extraction method, with various hydrocarbon solvents and concentrations.
Noha Muhsen Ali, Tariq Mohammed Naife
doaj   +1 more source

Comparison of performance of Ni–Mo/γ-alumina catalyst in HDS and HDN reactions of main distillate fractions

open access: yesPetroleum Science, 2019
A bimetallic nickel–molybdenum catalyst supported on γ-alumina was synthesized by the two-step incipient wetness impregnation technique. The activity of the prepared Ni–Mo/γ-alumina catalyst was evaluated in a down flow fixed-bed micro-reactor.
Babak Behnejad   +2 more
doaj   +1 more source

Preparation of palladium catalyst loaded on zeolite and its application in qualitative improvement of heavy naphtha [PDF]

open access: yesمجلة التربية والعلم, 2013
In this research the catalyst palladium supported zeolite was prepared  then X-ray diffraction and fluorescence and thermo gravimetric analysis was measured to understand  the crystal and molecular structure of  prepared catalyst, Then the catalyst was ...
Omar Ramadan   +2 more
doaj   +1 more source

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