Results 11 to 20 of about 18,652 (294)

Monitoring, modeling, and optimization of parameters affecting the recovery efficiency of acid gases from a sweetening unit

open access: yesEgyptian Journal of Petroleum, 2023
Amine processes are the advanced technology available today for the removal of carbon dioxide (CO2) and hydrogen sulfide (H2S) acid gases. Methyldiethanolamine (MDEA) is a well-known tertiary amine used selectively for the removal of carbon dioxide from ...
Walaa Mahmoud Shehata   +2 more
doaj   +1 more source

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   +1 more source

Hydrotreating of waste lube oil by rejuvenated spent hydrotreating catalyst

open access: yesEgyptian Journal of Petroleum, 2014
Large quantities of catalysts are used in the Egyptian refining industry for the purification and upgrading of various petroleum streams. These catalysts gradually lose activity through deactivation with time and the spent catalysts were usually ...
Sadeek A. Sadeek   +4 more
doaj   +1 more source

Fabrication of CoNiMo/γ-Al2O3 from waste aluminum foil to convert waste lube oil to hydrotreated oil

open access: yesEgyptian Journal of Petroleum, 2021
Because of the heavy metal content and other toxic chemicals, used lubricating oil remains one of the most serious environmental concerns. The target of this work is the synthesis of γ-Al2O3 from waste aluminum foil and re-refining waste lubricating oils
Asmaa A. Abdelrahman   +3 more
doaj   +1 more source

Energy saving in oilfields by using waste heat in the disposed water [PDF]

open access: yesChemical Industry and Chemical Engineering Quarterly, 2023
The present work aims to retrofit an existing Egyptian oilfield plant to improve desalter performance and reduce the power of crude oil shipping pumps. In this work, waste heat in disposed water that represents a value is used in heating brackish water ...
Shehata Walaa Mahmoud   +2 more
doaj   +1 more source

Development of a New Two-Phase Fluid Atomizer Nozzle in Pilot Scale for Fluid Catalytic Cracking Process [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2021
The uniform atomization of FCC   feed causes to produces desirable products like gasoline and decreases undesirable products like coke and dry gas. The atomization process caused the selectivity and efficiency of main products to increase.
Amir Farshi, Ali Jabreili Jolodar
doaj   +1 more source

Highly effective ionic liquids for biodiesel production from waste vegetable oils

open access: yesEgyptian Journal of Petroleum, 2015
As conventional energy sources deplete, the need for developing alternative energy resources which are environment friendly becomes more imperative. Vegetable oils are attracting increased interest in this purpose.
Fathy A. Yassin   +5 more
doaj   +1 more source

Characterization of various zinc oxide catalysts and their activity in the dehydration-dehydrogenation of isobutanol [PDF]

open access: yesJournal of the Serbian Chemical Society, 2008
Mono and bifunctional zinc oxide catalysts were prepared to study their activity in the catalytic conversion of isobutanol. The prepared catalysts were characterized by X-ray diffraction analysis and nitrogen adsorption measurements.
Saad Lamia, Riad Mary
doaj   +1 more source

Enhanced light olefins production via n-pentane cracking using modified MFI catalysts

open access: yesHeliyon, 2022
n-pentane catalytic cracking was studied over a series of MFI zeolites with varying SiO2/Al2O3 ratios (30, 80, 280, 500, and 1500) using a fixed-bed reactor operated at temperature 550–650 °C.
Ziyauddin S. Qureshi   +5 more
doaj   +1 more source

Catalytic

open access: yesEgyptian Journal of Petroleum, 2014
A series of dealuminated Y-zeolites impregnated by 0.5 wt% Pt catalysts promoted by different amounts of Ni, Pd or Cr (0.3 and 0.6 wt%) were prepared and characterized as hydrocracking catalysts. The physicochemical and structural characterization of the
S.A. Hanafi   +4 more
doaj   +1 more source

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