Leaderboard


Popular Content

Showing most liked content since 03/19/2017 in all areas

  1. 2 likes
    Hello sampath For petro design use to ansys fluent software use to analysis all petro equipment body analysis of equipment & further knowledge then u go u tube search ansys fluent
  2. 2 likes
    Sustainability of Ethanol and Other Biofuels Sustainable H2 Production from Next Generation Nuclear Plants Fluorescent Tracing in Process Control Hospital Waste Management Microfluidics Membrane Bioreactor-An Excellent Option for Wastewater Treatment Modern Air Pollution Control Technologies New Polymerization Technology for Advanced Materials Processing of semiconductor materials Tidal Energy Harvesting Particle Reinforced Aluminium Matrix Composites Modern Air Pollution Control Technologies Biomass Fuelled Power Plant Recycling of Plastics Synthesis of Nanostructured Materials Fuel Cells and Sustainable Development Ozone in Water Treatment Particle Reinforced Aluminium Matrix Composites Phytoremediation Plant-made pharmaceuticals Membrane Bioreactors (MBR) Noise Pollution and Control in Chemical Industry Air permit Industrial PVC Formulation Fluorescence Spectroscopy Polarography Concentrating Solar Power Chemometrics Wind Power in France Biological Applications Of Macromolecules Fluorimetry Future for Next Generation of Nuclear Power Plants Radiation Processing of Polymers Inventory and Flow Control in Complex Process Networks Photon spectroscopy Polymer Processing Thermophotovoltaics Natural and Fabricated NanoBiomaterials Biomass for Carbon Sequestration Non-proliferation and Growth of Nuclear Fuels: Iran DLVO theory Safety in the Chemical Process Industry Nanoparticle Bonding Technology for Advanced Materials Universal Heat Mining Functional Genomics Solar Power Satellites Composite Materials Coal Bed Methane as NG Source Turbine Selection Issues for Wind Sequestration and Impacts on Carbon Trading Markets Supercritical Fluids Computational Fluid Dynamics Polymer Science and Engineering Hydrogen - Fuel for the Future? Recent Development Industrial Catalysis Chemical Weapons Processing Of Polymeric Materials Distributed Energy Generation Environmental Application of Supercritical Fluid Technology Cell Cultivation Microemulsion Polymerization
  3. 2 likes

    Version 1.0.0

    518 downloads

    Petroleum Refining Engineering-II Course outline 1. Simplified overall crude oil refinery picture 2. Major refinery products and tests: Brief description 3. Separation process: Atmospheric and vacuum distillations, lube oil extraction, dewaxing, deasphalting, and clay treatment. 4. Catalysts used in refinery operations 5. Conversion processes: Brief description of alkylation, polymerization, isomerization of light paraffins, hydrotreating, catalytic reforming, catalytic cracking, hydrocracking, visbreaking of resids, and coking. 5. Material and energy balances for refinery processes: Simulation of refinery processes 6. Design guidelines for the selected refinery equipment
  4. 1 like
    Solvent Criteria One of the most important steps in developing a successful (economical) extractive distillation sequence is selecting a good solvent. Approaches to the selection of an extractive distillation solvent are discussed by Berg, Ewell et al. ,and Tassions. In general, selection criteria include the following : 1. Should enhance significantly the natural relative volatility of the key component. 2. Should not require an excessive ratio of solvent to nonsolvent (because of cost of handling in the column and auxiliary equipment. 3. Should remain soluble in the feed components and should not lead to the formation of two phase. 4. Should be easily separable from the bottom product. 5. Should be inexpensive and readily available. 6. Should be stable at the temperature of the distillation and solvent separation. 7. Should be nonreactive with the components in the feed mixture. 8. Should have a low latent heat. 9. Should be noncorrosive and nontoxic Naturally no single solvent or solvent mixture satisfy all the criteria, and compromises must be reached. Solvent Screening Perry's handbook serve as a good reference for the solvent selection procedure, which can be thought of as a two step process, i.e.: Broad screening by functional group or chemical family Homologous series : Select candidate solvent from the high boiling homologous series of both light and heavy key components. Robins Chart: Select candidate solvents from groups in the Robbins Chart that tend to give positive (or no) deviations from Raoult's law for the key component desire in the distillate and negative (or no) deviations for the other key. Hydrogen-bonding characteristic: are likely to cause the formation of hydrogen bonds with the key component to be removed in the bottoms, or disruption of hydrogen bonds with the key to be removed in the distillate. Formation and disruption of hydrogen bonds are often associated with strong negative and positive deviations, respectively from Raoult's Law. Polarity characteristic: Select candidate solvents from chemical groups that tend to show higher polarity than one key component or lower polarity than the other key. Identification of individual candidate solvents Boiling point characteristic: Select only candidate solvents that boil at least 30-40C above the key components to ensure that the solvent is relatively nonvolatile and remains largely in the liquid phase. With this boiling point difference, the solvent should also not form azeotropes with the other components. Selectivity at the infinite dilution: Rank the candidate solvents according to their selectivity at infinite dilution. Experimental measurement of relative volatility: Rank the candidate solvents by the increase in relative volatility caused by the addition of the solvent. Residue curve maps are of limited usefulness at the preliminary screening stage because there is usually insufficient information available to sketch the them, but they are valuable and should be sketched or calculated as part of the second stage of the solvent selection.
  5. 1 like
    Calculating heat exchanger effectiveness allows engineers to predict how a given heat exchanger will perform a new job. Essentially, it helps engineers predict the stream outlet temperatures without a trial-and-error solution that would otherwise be necessary. Heat exchanger effectiveness is defined as the ratio of the actual amount of heat transferred to the maximum possible amount of heat that could be transferred with an infinite area. Two common methods are used to calculate the effectiveness, equations and graphical. The equations are shown below. Eqn(1) Eqn(2) where: U = Overall heat transfer coefficient A = Heat transfer area Cmin = Lower of the two fluid's heat capacities Cmax = Higher of the two fluid's heat capacities Often times, another variable is defined called the NTU (number of transfer units): NTU = UA/Cmin When NTU is placed into the effectiveness equations and they are plotted, you can construct the plots shown below which are more often used than the equations: Fig1: Heat Exchanger Effectiveness for Countercurrent Flow Fig2: Heat Exchanger Effectiveness For Cocurrent Flow Then, by calculating the Cmin/Cmax and the NTU, the effectiveness can be read from these charts. Once the effectiveness has been found, the heat load is calculated by: Q = Effectiveness x Cmin x (Hot Temperature in - Cold Temperature in) For calculating the outlet temperatures we use the equations stated below Eqn(3) Eqn(4)
  6. 1 like
    When we need pumps in parallel and pumps in series? You can ▪️ answer this question ▪️ like the best answer ▪️ share to get more answers
  7. 1 like
    Please add more topics by replying to this post Nano Technology-Fueling the Chemical Industry’s Future Biocolours-A New Generation Additive For Industries Metal-Matrix Composite Processing Arsenic Reduction From Water War Gases Carbon Sequestration Technologies Decolourisation of textile dyeing waste water using UV/solar photofentons oxidation Process Chemical Oceanography High Temperature polymers New Chemical Instrument Uses Missile Technology Multiple Effect Evaporation Microstructural Modeling of Branched-Block and Linear-Block Polyolefins LDAR: Enforcement and Inspection
  8. 1 like
    Manufacturing methods to control polymorphism Air Monitoring Equipments Atom Transfer Radical Polymerization High Preformance Polymers Emulsification using microfiltration membranes Bio-oxidation - A Technology For Sustainable Air Pollution Control Microbial Enhanced Oil Recovery (MEOR) Recycling of Paper Radioactive Waste Management Ion spectroscopy Airborne Particle Monitoring Natural and Fabricated Nan Biomaterials Solar Ponds Application Of Linearization Methods Particle Surface Modification Metal-Matrix Composite Processing Metamorphic Robots Particle Sizing by Laser Diffraction Remote Airborne Particle Counter Advances In Mass Spectrometry ChemometricsWind Power in France Biological Applications Of Macromolecules FluorimetryFuture for Next Generation of Nuclear Power Plants Radiation Processing of Polymers Inventory and Flow Control in Complex Process Networks Photon spectroscopy Polymer Processing Thermophotovoltaics Natural and Fabricated NanoBiomaterials Biomass for Carbon Sequestration Non-proliferation and Growth of Nuclear Fuels
  9. 1 like
    Please share about the project you have undertaken during your engineering education... or the one you are pursuing or want to take... lets make a list of interesting projects