Analytical chemistry solutions to hazard evaluation of petroleum refining products. [PDF]
Regul Toxicol Pharmacol, 2023 Roman-Hubers AT +3 more
europepmc +3 more sources
Assessment of the Active Sludge Microorganisms Population During Wastewater Treatment in a Micro-Pilot Plant [PDF]
BioengineeringKnowledge 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 +2 more sources
Monitoring the Biodegradation Progress of Naphthenic Acids in the Presence of Spirulina platensis Algae [PDF]
ToxicsThe experiments in this study investigated the toxicity of naphthenic acids (NAs) on the algal culture Spirulina platensis. The tests monitored the progression of the algal suspension in media contaminated with various concentrations of naphthenic acids.
Catalina Gabriela Gheorghe +7 more
doaj +2 more sources
HYDROGENOLYSIS OF PALM OIL DERIVED METHYL ESTERS OVER NIOBIUM AND TUNGSTEN BASE CATALYSTS
Studia Universitatis Babes-Bolyai Chemia, 2023 Vegetable oils are widely available in nature and are one of the most important sustainable feedstocks for biofuel production. W/Pd/γ-Al2O3-ZnZSM-5 and Nb/Pd/γ-Al2O3-ZnZSM-5 catalysts where prepared, characterized and tested in the hydrogenolysis ...
Mihai MARINESCU +5 more
doaj +1 more source
Efficient CO2 methanation using nickel nanoparticles supported mesoporous carbon nitride catalysts
Scientific Reports, 2023 The CO2 methanation technique not only gives a solution for mitigating CO2 emissions but can also be used to store and convey low-grade energy. The basic character and large surface area of mesoporous carbon nitride, (MCN), are considered promising ...
Zakaria Refaat +6 more
doaj +1 more source
The reduction of FCCU afterburning through process optimization and regenerator revamping [PDF]
Chemical Industry and Chemical Engineering Quarterly, 2022 Operating the fluid catalytic cracking unit (FCCU) in afterburning conditions can increase the regenerator temperatures above the metallurgical design leading to mechanical failures of the cyclones and plenum chamber.
Enache Florin +3 more
doaj +1 more source
Xylene Isomerization using Hierarchically Mesoporous ZSM-5
Bulletin of Chemical Reaction Engineering & Catalysis, 2023 The current study described the synthesis of H-ZSM-5 zeolites with hierarchical micro-meso- porosity (HM-ZSM-5-x) via the soft-templating route, employing organosilane surfactant, 3-[(trimethoxysilyl) propyl]octyldimethyl-ammonium chloride, as the ...
Ahmed El Fadaly +5 more
doaj +1 more source
Simulation and retrofitting of mass exchange networks in fertilizer plants
Scientific Reports, 2023 This paper presents a simulation technique for optimizing a hydrogen integration network. By applying this technique, the minimum fresh hydrogen consumption can be determined.
Abeer M. Shoaib +3 more
doaj +1 more source
Oxidative Desulfurization of Sour Gas Condensate and Optimization of Parameters with Response Surface Methodology [PDF]
Journal of Sciences, Islamic Republic of Iran, 2020 Reducing environmental pollution via elimination of sulfur compounds from gas condensate was the aim of this research. Whereby oxidative desulfurization from gas condensate with 3200 ppm initial sulfur was accomplished by hydrogen peroxide (30%wt) as ...
mehdi alibolandi +4 more
doaj +1 more source
Optimum rescheduling of water networks for batch processes using a goal programming technique
Scientific Reports, 2023 Batch processes are relevant to a wide variety of industries in chemical processes. In batch operations, water sources are almost not directly reused/recycled in process sinks without considering time constraints and storage tanks. However, storage tanks
Fatma M. Ayyad +3 more
doaj +1 more source