الأرشيف

  Effect of the Alkyl Chain Length on the Adsorption properties of Malonamide Chelating Resins   Abstract: In order to investigate the effect of the alkyl chain length of malonamide chelating resins on the rate of uptake of U(VI) ions and Ce(III) ions, N,N,N’,N’-tetraethylmalonamide (TEMA), N,N,N’,N’-tetra-npropylmalonamide (TPrMA), N,N,N’,N’-tetra-n-butylmalonamide (TBMA) and N,N,N’,N’-tetra-n-pentylmalonamide (TPeMA) chelating resins were…

  Effective Heat Transfer Parameters in Beds Packed with Spher   ABSTRACT: Effective radial thermal conductivity and wall heat transfer coefficient for packed bed of non reacted material, 4.8mm alumina spheres, were experimentally determined at high temperatures up to 850 ºC for flow rates giving particle Reynolds numbers in the range of 10 – 220….

Egyptian and International Automotive Diesel Fuels, Specific ABSTRACT: This paper presents a brief summary and comparison of Egyptian automotive diesel fuel to the international one. Recent legislation all over the world, requiring further reduction in sulfur, aromatics, T90 and T95 and increasing cetane value of the transportation diesel fuels, presents numerous technical and economic challenges…

Elastic Compositions Based on Polyurethane/ Aliphatic Polyesters Abstract: Aliphatic polyesters were prepared by melt condensation reaction of a dicarboxylic acid such as adipic and sebacic with different types of diol compounds in 1: 1.1 molar ratio. Ethylene glycol, di-, tri-, tetraethylene glycol and poly(ethylene glycol) with different molecular weights 1000, 4000, 6000 as well as…

Epoxidation of linseed oil-Alkyd resins Abstract: Three types of different linseed oil-alkyd resin ( Alk (I), Alk (II), and Alk (III) ) were prepared with the calculated amounts of monoglyceride and adipic acid (1:1, 1:2, and 2:1 Eq.Wt) respectively via monoglyceride method. The obtained alkyd resins were epoxidized via reaction with the calculated quantities of…

  EXTRACTION OF AROMATICS FROM HEAVY NAPHTHA USING DIFFERENT SOLVENTS   Abstract Aromatic hydrocarbons are very important to the petrochemical industry. Among these are benzene, toluene and xylene (BTX), which are basic raw materials for the production of a number of important petrochemicals. There are many processes used to separate aromatic from non aromatic such…

Failure Analysis of the HCL Column InterCooler, Cause, Effec Introduction: The Egyptian Petrochemicals Co. (EPC) is located at Alexandria – Egypt, it is considered as one of the most important plants in the middle east, it consists of the following plants: PVC plant with possible expansions, VCM Plant, CL2 Chlorine & NaOH Caustic Soda Plant,…

Growth and Desulfurization Kinetics of Rhodcoccus Erythropol Abstract The growth Kinetics of Rhodococcus erythropolis IGTS8 on dibenso-thiophene, DBT, of different initial concentrations as well as on two petroleum fractions namely untreated and hydrodesulfurized gasoline and gas oil have been investigated in batch cultures. Using dibenzothiophene as a substrate, the specific growth rates were found to…

Growth Kinetics of Rhodococcus Erythropolis IGTS8 on Thiophe Abstract Sulfur oxides emissions through fossil fuel combustion posse environmental problems because these oxides are major cause of acid rain, which dissolve buildings, kills forests and poisons lakes. That is why world environmental regulations are becoming harder with respect to sulfur content in fossil fuels. The demand…

GUIDELINES FOR EVALUATION OF NATURAL GAS PROJECTS ABSTRACT This paper is objected to give guidelines for natural gas projects appraisal. These guidelines are summarized in modeling of natural gas demand forecast and energy pricing policies for different gas consumers mainly in the manufacturing, mining, transport, trade and agriculture sectors. Analysis of the results is made…