List of Articles Olefin

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  1 - Application of Graph Theory: Investigation of Relationship Between Boiling Temperatures of Olefins and Topological Indices
  Esmat Mohammadinasab
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  2 - Identification and classification of Maroon Petrochemical Company Olefin Unit special residues based on BAZEL Convention Method
  Zahra Moavi Forozan Farrokhian
  10.30495/jest.2022.10310
  Background and Objective: Technology fast growth, attaining to production new processes, replacement artificial materials with natural fiber and thousands synthesis of materials kind and chemical compounds, lead to increasing much amount of industrial wastes and in some More

  Background and Objective: Technology fast growth, attaining to production new processes, replacement artificial materials with natural fiber and thousands synthesis of materials kind and chemical compounds, lead to increasing much amount of industrial wastes and in some cases it  has leaded  to producing dangerous solid and liquid residue. Accordingly, the aim of this research is identification and classification of residues and consumer chemical identification and classification of residues and consumer chemical materials in Maroon Petrochemical Company Olefin Unit. Material and Methodology:  Method in this research includes library studies and field observations from Olefin Unit and finally residues classification was based on Basel Convention. Findings: Studies showed that unit has 18 non-dangerous and 9 dangerous residues all those have identified on solid, semi solid, and liquid phase. The most non- dangerous residue belongs to wastage flea with 60 tons and the least was cloth element with 0.144 in year. Also, the most dangerous residue belongs to heavy oil with 144 tons and the least was petroleum with 1 ton in year. Discussion and Conclusion: Therefore, by 1.900.000 tons in year of consumer raw materials for producing of product in Olefin Unit, there was 323.9 tons of dangerous residue production in year. It is suggested that the performance of the olefin unit should be controlled according to the designed conditions and the catalysts and absorbents in the unit should be replaced with better types with a longer useful life. Manuscript profile
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  3 - A study on the flexural behavior of fiber-reinforced concrete beams subjected to tensile steel corrosion
  iman sadrinejad
  10.30495/civil.2023.703645
  This paper presents the results of an experimental study on the flexural performance of reinforced concrete beams made of fibrous concrete under the corrosion of tensile steels. Fifteen reinforced concrete beams were prepared in three groups; in two groups, two types of More

  This paper presents the results of an experimental study on the flexural performance of reinforced concrete beams made of fibrous concrete under the corrosion of tensile steels. Fifteen reinforced concrete beams were prepared in three groups; in two groups, two types of steel and polyolefin fibers were utilized to construct the beams. Four beams from each group were subjected to accelerated corrosion to create corrosion percentages of 3.5, 7, 15 and 30% in tensile steels. Then the beams were subjected to a four-point bending test, and the parameters of yield strength, ultimate strength, yield deflection, ultimate deflection, failure mode and ductility of the beams were investigated. The results indicated that up to the corrosion level of 15%, with the development of general corrosion, along with the reduction of stiffness and resistance of the beams, the ultimate deflection of the beams increased, and at the corrosion level of 30%, with the development of local corrosion, the ultimate strength and ultimate deflection of the beams were greatly reduced. The level of corrosion in tensile steel of beams containing steel fibers was lower than that of in the other beams, which was caused by the sacrificial anode effect of steel fibers. Under the corrosion conditions of tensile steel, the reduction of strength and stiffness in fibrous concrete beams were less than those in the plain concrete beams, and the performance of steel fibers in this field was significantly better than their polyolefin counterparts. Furthermore, the fibers used for this purpose, had significantly positive effect on the ductility of reinforced concrete beams with tensile steel corrosion. Manuscript profile
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  4 - Olefin production from catalytic cracking of light fuel oil over different additives
  Ali Afshar Ebrahimi Sara Tarighi
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  5 - Kinetics inversion of chloro-olefine in the solid acid system
  Narges Samadani Langeroodi
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  6 - Experimental Study of Modulus of Elasticity, Capillary absorption of water and UPV in Nature-Friendly Concrete Based on Geopolymer Materials
  Mohammadhossein Mansourghanaei Morteza Biklaryan Alireza Mardookhpour
  10.1007/ijase.2023.698294
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  7 - Simulation of increasing of light olefins production yield from methanol using HZSM-5 zeolite catalysis
  محمد رستمی زاده پیمان تقوی حسین حضرتی
  Light olefins (ethylene, propylene, and butylene) can be produced from methanol through non-oil route. In this study, HZSM-5 catalyst was synthesized by hydrothermal method and characterized using X-ray diffraction (XRD), Field emission scanning electron microscopy (FE- More

  Light olefins (ethylene, propylene, and butylene) can be produced from methanol through non-oil route. In this study, HZSM-5 catalyst was synthesized by hydrothermal method and characterized using X-ray diffraction (XRD), Field emission scanning electron microscopy (FE-SEM), N2 adsorption-desorption (BET), Fourier transform infrared spectroscopy (FT-IR), and NH3 temperature programmed desorption (NH3-TPD) analysis. The catalysis included microsphere morphology which led to mesoporous structure formation and acceleration of diffusion. Based on characterization, the catalysis represented high crystallinity, high surface area and appropriate acidity properties. The results showed that the catalysis provided high methanol conversion (99.5%), selectivity of light olefins (82%), and long-term catalytic lifetime (72h). In order to increase the production yield, suitable reaction groups and kinetics in consistent with the catalysis performance was determined and methanol to olefin (MTO) process was simulated. The simulation results showed well agreement with the experimental data. Optimization of kinetic and operational parameters of MTO resulted in high methanol conversion and light olefins selectivity as 100 % and 94.1 %, respectively. The catalysis performance in the MTO process under the optimized operational conditions was confirmed the simulation results which indicated practicality of applied simulation and optimization Manuscript profile