A Simple Scheme for Extraction of Asphaltenes from Asphalt at Room Temperature
نویسندگان
چکیده
This paper proposes a simple scheme to separate asphaltenes from asphalt at room temperature without heating or refluxing. The proposed can solve the problems of high energy cost, expensive devices, and safety risks flammable steam in standard methods asphaltene extraction. First, is dissolved good solvent obtain solution containing asphaltenes, inorganic impurity as well residual carbons are removed by filtration. Then, dropped into poor let flocculate suspended solids. Finally, suspension filtered, filter cake dried solid. CHNS elements 1H-Nuclear magnetic resonance were characterized for obtained product. Compared with asphalt, C/H element ratios aromatic carbon product higher, which matched elemental structural characteristics asphaltenes. yields different solvents compared, reasons yield differences analyzed. Recovered could be used extract was found decrease extraction times.
منابع مشابه
A Simple and Effective Protocol for One-Pot Diazotization-Iodination of Aromatic Amines by Acidic Ionic Liquid [H-NMP]HSO4 at Room Temperature
A simple and efficient one-pot method for the preparation of aromatic iodides has been developed by sequential diazotization–iodination of aromatic amines employing sodium nitrite and sodium iodide in the presence of acidic ionic liquid N-methyl-2-pyrrolidonum hydrosulfate ([H-NMP]HSO4). The diazonium salts that are formed by this ionic liquid are stable at room temperature and r...
متن کاملA Novel Lipid Extraction Method from Wet Microalga Picochlorum sp. at Room Temperature
A novel method using ethanol was proposed for extracting lipids from wet microalga Picochlorum sp. at room temperature and pressure. In this study, Central Composite design (CCD) was applied to investigate the optimum conditions of lipid extraction. The results revealed that the solvent to biomass ratio had the largest effect on lipid extraction efficiency, followed by extraction time and tempe...
متن کاملSynthesize of Superparamagnetic Zinc Ferrite Nanoparticles at Room Temperature
Superparamagnetic single phase zinc ferrite nanoparticles have been prepared by coprecipitation method at 20 °C without any subsequent calcination. The composition, crystallite size, microstructure and magnetic properties of the prepared nanoparticles were investigated using X-ray diffraction (XRD), field emission scanning electron microscope (FESEM), transmission electron microscope (TEM)...
متن کاملWater at room temperature as a solvent for the extraction of apple pomace phenolic compounds.
A fractionation method was used to extract phenolic compounds from apple pomace (AP) involving a first extraction with water and subsequent extractions of the same residue with two different organic solvents. The water extracts obtained contained high amounts of phenolic compounds with high antioxidant capacity. However, the second and third extractions of the same residue still extracted consi...
متن کاملTetrabutylammonium bromide-Cesium carbonate: new reagent system for the synthesis of substituted pyridines at room temperature
The highly substituted pyridine derivatives are found to exhibit diverse pharmacological activities. They are also emerged as potential medicinal leads in developing therapeutic agents for the treatment of various diseases. In this work, a series of 2-amino-3,5-dicarbonitrile-6-thio-pyridine derivatives have been synthesized at room temperature via one-pot, multi-component reaction of various a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Coatings
سال: 2022
ISSN: ['2079-6412']
DOI: https://doi.org/10.3390/coatings12030407