Results 31 to 40 of about 107,185 (264)

Assessment of the Active Sludge Microorganisms Population During Wastewater Treatment in a Micro-Pilot Plant

open access: yesBioengineering
Knowledge of the impact of chemicals on the environment is important for assessing the risks that chemicals can generate in ecosystems. With the help of pilot-scale micro-tests, it was possible to evaluate the biological sludge in terms of its chemical ...
Daniela Roxana Popovici   +2 more
doaj   +1 more source

Novel Gemini ionic liquid for oxidative desulfurization of gas oil

open access: yesScientific Reports, 2023
The N1,N1,N3,N3-tetramethyl –N1,N3-diphenylpropane-1,3-diaminium dichloride ionic liquid (ILc) is an environmentally friendly catalyst for oxidative–extractive desulfurization of gas oil (sulfur content = 2400 ppm) in the presence of H2O2 as an oxidizing
Hoda A. Mohammed   +3 more
doaj   +1 more source

An empirical analysis of the petroleum refining industry's participation in the FASB's standard-setting process: Working paper series--99-04 [PDF]

open access: yes, 1999
Despite the recognized importance of constituent input in the Financial Accounting Standards Board's (FASB's) standard-setting process, corporate participation has been limited.
Tandy, Paulette R., Wilburn, Nancy L.
core  

Zein‐Based Adhesives: Sustainable Extraction and Application in Bioadhesive Technologies

open access: yesAdvanced Engineering Materials, EarlyView.
Zein is extracted from corn gluten meal using a simple and scalable process with high yield (~90%). The resulting protein is applied in bioadhesives modified with Ca2+ and Fe3+ ions, exhibiting substrate‐dependent adhesion. The findings demonstrate competitive bonding performance and highlight the role of ionic interactions in tuning adhesion ...
Paula Bertolino Sanvezzo   +3 more
wiley   +1 more source

Enhancing the efficiency of propylene recovery from a polypropylene plant flare

open access: yesJournal of Engineering and Applied Science
The growing demand for olefins driven by their widespread use in petrochemical industries, particularly in polypropylene production, has brought attention to inefficiencies in certain operational processes.
Belal M. Elsamman   +3 more
doaj   +1 more source

Efficient Separation of Isoamyl Alcohol from Fusel Oil Using Non-Polar Solvent and Hybrid Decanter–Distillation Process

open access: yesApplied Sciences
Fusel oil is a fermentation by-product composed of a complex mixture of alcohols (ethanol, isoamyl, propanol, and butanol isomers) and water. The primary challenges lie in water separation and the recovery of the valuable component, isoamyl alcohol.
Mihaela Neagu   +3 more
doaj   +1 more source

Від газолінових заводів Прикарпаття до сучасної нафтопереробної промисловості України [PDF]

open access: yes, 2013
Розглянуто зародження нафтопереробної промисловості та охарактеризовано сучасний стан перероблення нафти в Україні.Рассмотрено зарождение нефтеперерабатывающей промышленности и дана характеристика современного состояния переработки нефти в Украине.The ...
Братичак, М. М.
core  

Thermophysical Properties of the Desulphurization Slags With Various CaS and CaO/Al2O3 Ratio

open access: yesAdvanced Engineering Materials, EarlyView.
This article investigates how CaS content and the CaO/Al2O3 ratio influence the thermophysical properties of desulphurization slags. Using experimental measurements and thermodynamic simulations, this study reveals complex effects on viscosity, surface tension, and density, providing new insight into slag structure and phase behavior under ...
Eldar Salpagarov   +4 more
wiley   +1 more source

Energy efficiency and greenhouse gas emission abatement opportunities for an existing gas treatment plant: a comprehensive technical and economic analysis

open access: yesJournal of Engineering and Applied Science, 2023
This research paper examined the operational performance and greenhouse gas (GHG) emissions of an existing gas treatment plant. Extensive data collection and analysis were undertaken to assess energy consumption and emissions and identify major emitter ...
Mohamed Magdy El-Eishy   +2 more
doaj   +1 more source

Population of Nonmetallic Inclusions in Liquid High‐Silicon Electrical Steel in Contact With MgO–C Refractories Based on Recyclates and Environmentally Friendly Binders

open access: yesAdvanced Engineering Materials, EarlyView.
The formation of nonmetallic inclusions (NMIs) was investigated in this study, carrying out immersion tests for 30 min at a temperature of 1600°C with liquid high‐silicon electrical steel (Si ≈ 3 mass‐%) and different MgO–C refractories. Conventional MgO–C refractories were considered, as well as MgO–C refractories containing MgO–C recyclate and ...
Lukas Neubert   +6 more
wiley   +1 more source

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