Results 11 to 20 of about 17,461 (306)

Removal efficiency and reaction kinetics of phenolic compounds in refinery wastewater by nano catalytic wet oxidation

open access: yesInternational Journal of Renewable Energy Development, 2023
A novel nano-catalyst based on iron oxide (MnO2/Fe2O3) was developed to promote wet oxidation of phenol. MnO2 was doped in Fe2O3 matrix to prepare composite nano-catalyst with different doping percentage (0, 2 and 5%).
Yousif S. Issa   +7 more
doaj   +1 more source

Integrative Chemical–Biological Grouping of Complex High Production Volume Substances from Lower Olefin Manufacturing Streams

open access: yesToxics, 2023
Human cell-based test methods can be used to evaluate potential hazards of mixtures and products of petroleum refining (“unknown or variable composition, complex reaction products, or biological materials” substances, UVCBs).
Alexandra C. Cordova   +7 more
doaj   +1 more source

Technology for separating powdered materials from petroleum coke using a two-rotor gravity classifier [PDF]

open access: yesE3S Web of Conferences
After refining petroleum products, a lot of petroleum coke residue remains. From year to year, the amount of coke on the planet is increasing, and scientists around the world are looking for ways to rationally use the remaining petroleum coke.
Abdunazarov Fahriddin   +1 more
doaj   +1 more source

Evaluation of the influence of hydrodynamic cavitation treatment of dark petroleum products on the yield of fractions with boiling points up to 400°C

open access: yesТонкие химические технологии, 2023
Objectives. The reduction of the anthropogenic burden on the environment is generally associated with the transition to alternative energy sources. However, some of these have only regional significance, while the effectiveness of others remains doubtful.
B. V. Peshnev   +5 more
doaj   +1 more source

Modeling the Production Process of Fuel Gas, LPG, Propylene, and Polypropylene in a Petroleum Refinery Using Generalized Nets

open access: yesMathematics, 2023
The parallel processes involved in the production of refinery fuel gas, liquid petroleum gas (LPG), propylene, and polypropylene, occurring in thirteen refinery units, are modeled by the use of a Generalized Net (GN) apparatus.
Danail D. Stratiev   +3 more
doaj   +1 more source

A Critical Discourse Analysis of Newspaper Texts on the Science of Crude Oil Refining in Nigeria

open access: yesJournalism and Media, 2022
As a country with a remarkable crude oil deposit, it is a dark irony that Nigeria depends on importation for its petroleum product needs. The devastating impact on Nigeria’s economy of this dependence continues to provoke polemics. Recently, the polemics
Fred A. Amadi, Temple Uwalaka
doaj   +1 more source

Directions of increasing oil refinery revenues under conditions of energy dependence

open access: yesЕкономіка, управління та адміністрування, 2020
The rapid spread of globalization processes radically changed the functioning principles of Ukrainian enterprises. This is explained by the fact that globalization is a condition of economic entities’ functioning, and also determines the level of ...
L.P. Shapoval, A.O. Bulka
doaj   +1 more source

Molecular Characterization of Hydrocarbons in Petroleum by Ultrahigh-Resolution Mass Spectrometry

open access: yesEnergies, 2023
The progress in ultrahigh-resolution mass spectrometry (UHRMS) and related technologies has significantly promoted the development of petroleomics. The study of petroleomics has greatly broadened our knowledge of the composition of petroleum at the ...
Jikun Liu   +6 more
doaj   +1 more source

Failure analysis of radial bearings used in the refining of petroleum products [PDF]

open access: yesE3S Web of Conferences, 2019
The problem of premature failure of bearings is a common type of failure. In most cases, the destruction occurs due to violation of operating conditions.
Kovalev Mark   +3 more
doaj   +1 more source

Process Model Development and Optimal Kinetics for Fuel Desulfurization via a Novel Nano-Catalyst [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering
The elimination of dibenzothiophenes (DBT) from kerosene via the catalytic oxidation desulfurization (ODS) process was studied using hydrogen peroxide as an oxidant and MnO2/SnO2 as a catalyst.
Awad E. Mohammed   +7 more
doaj   +1 more source

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