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  1. 2 points

    Version

    2,168 downloads

    OPTIMIZATION OF CHEMICAL PROCESSES Chapter 1 : Overview of course Chapter 2 : Developing models for optimization Chapter 3 : Developing of Objective function Chapter 4 : Basic concepts of Optimization Chapter 5 : One dimensional search Chapter 6 : Unconstrained Multivariable optimization Chapter 7 : Linear programing Chapter 8 : Non Linear programing with constraints Chapter 9 : Mixed Initiger programing Appendix_A Thx to Smita for sharing these files
  2. 2 points
    1) instrument air and plant air 2) service water 3)dm water 4) cooling water 5) potable water and fire water 6) nitrogen various pressure 7)steam various pressure 8)power
  3. 2 points

    Version 2.0.0

    91 downloads

    Liquid–liquid extraction is also known as solvent extraction and partitioning is a method to separate compounds based on their relative solubilities in two different immiscible liquids, usually water and an organic solvent. It is an extraction of a substance from one liquid into another liquid phase.
  4. 2 points
    1.Boilers 2.Steam 3.Pumps 4.Valves 5.Pipes These are the basic utilities,I think so it is.
  5. 1 point
    this concept is similar to the natural convection and forced convection heat transfer. MOLECULAR DIFFUSION: the driving force for diffusion is concentration gradient EXAMPLE: If we take a cup of tea and add a sugar cube and wait for diffusion naturally (diffusion cause due to molecular motion from high region concentration to law region concentration) It will take so much time for diffusion EDDY DIFFUSION: Provide any external force for mass transfer.assume the same example mention above. rate of mass transfer is higher then molecular diffusion.
  6. 1 point
    In convention only done in liquid or fluid medium where radiation is done in without medium under medium also...
  7. 1 point
    Aspen hysys. Aspen plus. Aspen exchanger design and rating. Pro II Chemcad
  8. 1 point
    Power Fire Fighting Water Utility Water Demineralized Water Cooling Water Seawater Steam (different pressures, as req.) Nitrogen Instrument Air Hypochlorite Product Storage
  9. 1 point
    Dilipkumar  B

    What is the use of steam jet ejectors?

    Steam ejector is helpful to create a vacuum in process equipment let's take an example in a process plant there is only stripper of distillation here their was a steam jet ejector it sucks the 8 bar steam out if distillation and sent this steam to process and on the other hand it is creating a vacuum inside the stripper so there are 2 advantage
  10. 1 point
    Mostly the process plant utilities will consists of Steam boiler, Cooling tower, Ejectors, Chillers, Raw water source etc.
  11. 1 point
    Coagulation is a process in which a coagulant disperses in the forms of ions (preferably positive charged ions) while mixing in water or other aqueous solution. Dispersed ions of coagulant neutralizes or destabilizes negatively charged colloidal particles suspended in the solution. Flocculation is a process in which a coagulant produces gelatinous precipitate (called floc) generally hydroxide compound which has property of arresting suspended impurities in water or aqueous solution. These flocs ( in the shape of balls) become heavy with adhered (adsorbed) impurities and settle down during its downward motion towards bottom of the vessel. This processes is called Flocculation.
  12. 1 point
    Abhishek Choubey

    What is the use of steam jet ejectors?

    It helps to create a vacuum system as in vacuum evaporator for example.
  13. 1 point
    centrifugal pumps, are used for high flow rates and low pressure while reverse its hig pressure and low flow where we use reciprocating pumps, mechanical construction of both are different, operation of both pumps are different.
  14. 1 point
    As per my understanding when fluid is a gas, it's 02 heads I.e. kinetic and Potential head act as similar to that of liquid does but when Pressure head is taken in to consideration, it remains constant if the system is adiabatic. I.e. if internal energy of the system is constant than Pv will be same at different pressures so the head balance will remain as such and it will exhibit Bernoullis behavior. As no system is ideal there for not adiabatic completely so in this case gases can exhibit but with some error because of temperature change. Hope my answer is easy to understand for all
  15. 1 point
    yes While using equation we have to just take care of assumptions that fluid is incompressible, inviscous, and has a constant density throughout its motion.
  16. 1 point
    Filteration is a process in which we purify fluid through filter paper or any process by means of mesh screen etc while sedimentation is a process in which the particals settle down at the bottom of the container and fluid remains at the top, particles settle down due to gravity. The aim of the both proceses are same but method, efficiency are different.
  17. 1 point
    Relative volatility is the basis of distillation and toluene is relatively high volatile compound then water.
  18. 1 point
    Bernoullis equation is based on First law of thermodynamics and yes it can be used for gases. Measuring flow through orifice or ventury meters depends on this equation and is widely used in industry for gas flow measurement.
  19. 1 point
    Because the vaporization temperature of toluene is lower than the vaporisation temperature of water in the same pressure
  20. 1 point
    • Graded Mode
    • 10 minutes
    • 19 Questions
    • 136 Players
    Lets check your knowledge on Chemical Engineering Plant Economics Take quiz on it and check your command on the topic Encourage your friends do same .
  21. 1 point

    Version

    293 downloads

    A shell and tube heat exchanger is a class of heat exchanger designs. It is the most common type of heat exchanger in oil refineries and other large chemical processes, and is suited for higher-pressure applications. As its name implies, this type of heat exchanger consists of a shell (a large pressure vessel) with a bundle of tubes inside it. One fluid runs through the tubes, and another fluid flows over the tubes (through the shell) to transfer heat between the two fluids. The set of tubes is called a tube bundle, and may be composed of several types of tubes: plain, longitudinally finned, etc.
  22. 1 point

    Version

    205 downloads

    A waste heat recovery unit (WHRU) is an energy recovery heat exchanger that recovers heat from hot streams with potential high energy content, such as hot flue gases from a diesel generator or steam from cooling towers or even waste water from different cooling processes such as in steel cooling.
  23. 1 point

    Version

    145 downloads

    Oil refinary processes are the chemical engineering processes and other facilities used in petroleum refineries (also referred to as oil refineries) to transform crude oil into useful products such as liquefied petroleum gas (LPG), gasoline or petrol, kerosene, jet fuel, diesel oil and fuel oils. Petroleum refineries are very large industrial complexes that involve many different processing units and auxiliary facilities such as utility units and storage tanks. Each refinery has its own unique arrangement and combination of refining processes largely determined by the refinery location, desired products and economic considerations. Some modern petroleum refineries process as much as 800,000 to 900,000 barrels (127,000 to 143,000 cubic meters) per day of crude oil.
  24. 1 point

    Version 1.0.0

    669 downloads

    Distillation is a widely used method for separating mixtures based on differences in the conditions required to change the phase of components of the mixture. To separate a mixture of liquids, the liquid can be heated to force components, which have different boiling points, into the gas phase. The gas is then condensed back into liquid form and collected. Repeating the process on the collected liquid to improve the purity of the product is called double distillation. Although the term is most commonly applied to liquids, the reverse process can be used to separate gases by liquefying components using changes in temperature and/or pressure. A plant that performs distillation is called a distillery. The apparatus used to perform distillation is called a still. Distillation.mp4
  25. 1 point

    Version 1.0.0

    799 downloads

    The course content will be suitable for a wide range of personnel within a cement manufacturing company including junior/middle management, technicians, production and control room staff, etc and also for others who wish to gain a comprehensive understanding of the complete cement manufacturing process.
  26. 1 point

    Version

    212 downloads

    Heat-exchange-equipment.ppt presentation
  27. 1 point
    Utilities are the various streams to achieve the desired product which may include air system, steam , boiler, process water , cooling system, instrumentation, etc.
  28. 1 point
    Basically utilities are various streams which help in achieving the production of various chemicals. For eg., low pressure steam,service water,service air form part of utilities which will be available throughout the plant.The purpose is heating, cooling,cleaning respectively.
  29. 1 point
    Adil Bari

    What are the various utilities of a process plant?

    The utilities of a plant includes 1. Air compressor 2. Cooling water tower 3. Steam boiler 4. Reverse osmosis unit 5. Degassifier
  30. 1 point

    Version 1.0.0

    322 downloads

    Dimensionless numbers
  31. 1 point

    Version 1.0.0

    674 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
  32. 0 points
    Saurabh Raychura

    Mixing and Agitation

    Agitation refers to the induced motion of a material is a specified way, for example circular motion in standard CSTR, The entirely different operation from agitation is mixing.(the concept of phase homogeneity) Mixing is the random distribution of two or more phases. let's take a tank with cold water, it can be agitated but not mixed, to call it a mixing operation you have to add hot water which has different state of condition from cold water. Now the same tank has taken up from agitation operation to mixing operation.
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