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  1. Hi everyone. I'm Ahmed from Iraq Kirkuk I'm a senior of technical engineering of fuel and energy (chemical engineering field) I like to meet new people from all over the world and thanks
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  2. Hi ... Myself Devesh Tiwari currently working in Aditya Birla Group as a Process Engineer and have a graduation degree in Chemical Engineering from NIT Jalandhar 2015 batch.
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  3. The utilities of a plant includes 1. Air compressor 2. Cooling water tower 3. Steam boiler 4. Reverse osmosis unit 5. Degassifier
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  4. Chemical Reaction Engineering ,Heat Transfer and Thermodynamics
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  5. Lets make the list of software used by chemical engineers. Also suggest which software should learn during college days. please add software name and its application by replying to this post.
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  6. Aspen HYSYS Promax gproms chemcad prosim pdms autocad microsoft visio ( to draw pfd/pid) If you decide to purse education to Master and PhD, you'd better learn matlab, comsul, ansys and labview, but above list is a good ( not complete) one. Recently, I got familiar with below software: mysep to design separator iprsm to design safety valves prv2size to design safety valves ( free software) Iomosaic for process dafety you need both process simulators and equipment designer
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  9. What are the various utilities of a process plant? You can ▪ Answer this question ▪ Like the best answer ▪ Share to get more answers
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  10. 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.
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  11. 1.Boilers 2.Steam 3.Pumps 4.Valves 5.Pipes These are the basic utilities,I think so it is.
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  12. What does catalytic converter of an automobile really do? You can ▪ Answer this question ▪ Like the best answer ▪ Share to get more answers
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  13. Chalking and cracking , peeling of paint this happens because oil in paint reacts with oxygen in air
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  14. Please reply Name Engineering college Location (City/ Country) Engineering Batch Engineering Company/ Dream company to work for Area of Interest Project undertaken Any other info you want to share
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  16. Version 1.0.0

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    THIS FILE IS USEFUL TO HAVE A BASIC IDEA OF P,PI AND PID CONTROLLER. I HAD EXPLAINED THESE CONTROLLERS BY USING SOFTWARE MATLAB. P-PI-PID-basics.pptx
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  17. Fluids those resist the shear stress for a limit and then follow the Newtonian fluids law.
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  18. It is because of the friction or attraction force between two layers of fluid ... technical term used is velocity gradient
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  19. According to your figure ...... If A is in thermal equilibrium with B .and A is also in thermal equilibrium with C then automatically C and B are in thermal equilibrium
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  20. With use of NAN3 which decompose to give N2 gae which fills the airbag after the sensor detect it
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  22. What type of flow measurement device is best for slurries? You can ▪ Answer this question ▪ Like the best answer ▪ Share to get more answers
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  23. Dear Chemical Engineering professionals, Please accept New year wishes. Lets come together and wish every one by replying to this post. Happy new Year Hope the new year brighten up your Chemical Engineering profession. Freshers get the desired job Researchers get success in their projects All of us can get an opportunity to work in desired role and in desired company For those who are looking to start up as an entrepreneur can get the first move on Entrepreneurs who have recently started can take their work to new level Please do share - how will you like to take off in your Chemical engineering profession- What are your new year resolutions?
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  25. Many people overlook the importance of insulation in the chemical industry. Some estimates have predicted that insulation in U.S. industry alone saves approximately 200 million barrels of oil every year. While placing insulation onto a pipe is fairly easy, resolving issues such as what type of insulation to use and how much is not so easy. Insulation is available in nearly any material imaginable. The most important characteristics of any insulation material include a low thermal conductivity, low tendency toward absorbing water, and of course the material should be inexpensive. In the chemical industry. The most common insulators are various types of calcium silicate or fiberglass. Calcium silicate is generally more appropriate for temperatures above 225 °C (437 °F), while fiberglass is generally used at temperatures below 225 °C. Fig1: Thermal Conductivity of Calcium Silicate Fig2: Thermal Conductivity of Fibreglass insulation Insulation
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  26. production of 100TPD acrylonitrile by ammoxidation of propylene using sohio process my final year project anyone wishes to know anything about the project can ask me freely
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  27. Navier Stroke equation is used for transport phenomenon and used for reserach work on larger sized projects the most importantly belongs to velocity gradient i am this equation in final smester
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  28. Chemical engineering is a branch of engineering that applies physical sciences (physics and chemistry) and life sciences (microbiology and biochemistry) together with applied mathematics and economics to produce, transform, transport, and properly use chemicals, materials and energy. Essentially, chemical engineers design large-scale processes that convert chemicals, raw materials, living cells, microorganisms and energy into useful forms and products. Responsibilities of Chemical Engineers ■ Specifically, chemical engineers improve food processing techniques, and methods of producing fertilizers, to increase the quantity and quality of available food. ■ They also construct the synthetic fibers that make our clothes more comfortable and water resistant; they develop methods to mass-produce drugs, making them more affordable; and they create safer, more efficient methods of refining petroleum products, making energy and chemical sources more productive and cost effective. ■ Chemical engineers also develop solutions to environmental problems, such as pollution control and remediation. ■ And yes, they process chemicals, which are used to make or improve just about everything you see around you. Chemical engineers face many of the same challenges that other professionals face, and they meet these challenges by applying their technical knowledge, communication and teamwork skills; the most up-to-date practices available; and hard work. Benefits include financial reward, recognition within industry and society, and the gratification that comes from working with the processes of nature to meet the needs of society.
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  29. From the album Process Flow Diagrams

    Introduction • Ethylene oxide is produced by the oxidation of ethylene using air. • Ethanolamines are produced using the series reaction scheme of ethylene oxide with ammonia. • Ethanolamines are significantly used as absorbents to remove CO2 and H2S from process gas streams. Reactions • C2 H4 + 0.5 O2→ CH2 O.CH2O • Ethylene to air ratio: 3 – 10 % • Side reaction products: CO2 , H2O • Catalyst: Silver oxide on alumina • Operating temperature and pressure: 250 – 300°C and 120 – 300 psi • Supressing agent for side reactions: Ethylene dichloride • Reaction is exothermic • Air and ethylene are separate compressed and along with recycle stream are sent to the shell and tube reactor. • The reactor is fed on the shell side with Dowtherm fluid that serves to maintain the reaction temperature. A dowtherm fluid is a heat transfer fluid , which is a mixture of two very stable compounds, biphenyl and diphenyl oxide. The fluid is dyed clear to light yellow to aid in leak detection. • The hot dowtherm fluid from the reactor is sent to a waste heat recovery boiler to generate steam. • The vapour stream is cooled using a integrated heat exchanger using the unreacted vapour stream generated from an absorber. • The vapour stream is then sent to the heat integrated exchanger and is then sent back to the reactor and a fraction of that is purged to eliminate the accumulation of inerts such as Nitrogen and Argon. • The product vapors are compressed and sent to a water absorber which absorbs ethylene oxide from the feed vapors. Eventually, the ethylene oxide rich water stream is sent to a stripper which desorbs the ethylene oxide + water as vapour and generates the regenerated water as bottom product. The regenerated water reaches the absorber through a heat integrated exchanger. • The ethylene oxide + water vapour mixture is compressed (to about 4 - 5 atms) and then sent to a stripper to generate light ends + H2O as a top product and the bottom product is then sent to another fractionators to produce ethylene oxide as top product. The heavy ends are obtained as bottom product.
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  30. From the album Process Flow Diagrams

    Introduction • Vinyl chloride is produced in a two step process from ethylene. • Ethylene first reacts with Chlorine to produce Ethylene dichloride. • The purified Ethylene dichloride undergoes selective cracking to form vinyl chloride. • We first present the process technology associated to Ethylene Chloride . Reactions • C2H4 + Cl2 → C2H4Cl2 • Undesired products: Propylene dichloride and Polychloroethanes. • Reaction occurs in a liquid phase reactor with ethylene dichloride serving as the liquid medium and reactants reacting the liquid phase. • Catalyst is FeCl3 or Ethylene dibromide. Process Technology • C2H4 and Cl2 are mixed and sent to the liquid phase reactor. • Here, the feed mixture bubbles through the ethylene dichloride product medium. • Reactor operating conditions are 50°C and 1.5 – 2 atms. • The reaction is exothermic. Therefore, energy is removed using either cooling jacket or external heat exchanger. • To facilitate better conversion, circulating reactor designs are used. • FeCl3 traces are also added to serve as catalyst. • The vapour products are cooled to produce two products namely a vapour product and a liquid product. The liquid product is partially recycled back to the reactor to maintain the liquid medium concentration. • The vapour product is sent to a refrigeration unit for further cooling which will further extract ethylene dichloride to liquid phase and makes the vapour phase bereft of the product. • The liquid product is crude ethylene dichloride with traces of HCl. Therefore, acid wash is carried out first with dilute NaOH to obtain crude ethylene dichloride. A settling tank is allowed to separate the spent NaOH solution and crude C2H4Cl2 (as well liquid). • The crude ethylene dichloride eventually enters a distillation column that separates the ethylene dichloride from the other heavy end products. • The vapour phase stream is sent to a dilute NaOH solution to remove HCl and produce the spent NaOH solution. The off gases consist of H2, CH4, C2H4 and C2H6.
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  31. From the album Process Flow Diagrams

    Kvic model (Floating Drum Model) It consists of a deep well shaped underground digester connected by inlet and outlet pipes . a mild steel gas storage drum, inverted over the slurry goes up and down around a guide pipe corresponding to the accumulation and withdrawal of gas. Benefits: ○Capacity to maintain steady pressure of biogas by the movement of gas holder ○Inbuilt provision for scum breaking ○Volume of gas is known just by observing the position of the drum
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  32. A set of mathematical expression used to study the motion of fluids. They are expressed in terms of velocity gradients for a Newtonian fluid with constant density and gradient.
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  33. Pipephase from schneider (before SimSci) is used for hydraulic calculations in pipe networks. Pro-II ifrom schneider (before SimSci) is used for HMB in refinery, exploration and oil and gas facilities, among others. Aspen Hysis from AspenOne Suite is used for HMB in refinery, exploration and oil and gas facilities, among others with more accuracy depending of the case. AspenPlus from AspenOne is used specifically for petrochemical facilities, ethanol and pharma facilities. Aspen EDR from AspenOne Suite and HTRI is used for thermal design of heat transfer equipments as Shell & Tube, Plate and Frame, Spiral Heat Exchanger, Furnace, Double Tube Heat Exchanger. etc. Korf is used for pump hydraulics system. Pipenet is used for fire fighting pump hydraulics systems as well as AFT Fathom and AFT Sprinkler. Visual flow is used for hydraulic calculation in pipe networks based on isometrics. DinSim, Olga, WinSim are used for cross country pipeline as dynamic calculations. Flarenet, Implant, Flaresim are used for flare analysis including all network. Pha Pro is used for Risk Studies as Hazop, Hazid, SIL as LOPA method). Quest from Canary, PHAST from DNVGL, Breeze from Trinity Consultants, Superchems from iomosaic principally for Quantitative Risk Assessment. Caesar-II is used for pipe flexibility calculations. PVELITE and Compress are used for mechanical design of pressure vessels. TANK and E-Tank are used for mechanical design of API 650 Tanks and API 653. Visio is used for PFD and P&ID drawings as well as AutoCAD, AutoPlant, SPPID. CadWorx and SP3D used for 3D sketch drawings to generate layouts, isometrics, BOM. Others for instruments calculation.
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  35. in any fluid mechanics problem . But solving it is very tough so we make some suitable assumptions and than proceed for easy calculation. and for calculation chemical engineers use software's like Matlab.
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  37. Process Design and Calculation, PFD/PID Development
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  38. mass transfer and fluid mechanics,heat transfer too
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  39. Why can't chemical engineers make artificial paper so that trees are prevented from being cut down? You can ▪️ answer this question ▪️ like the best answer ▪️ share to get more answers
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  40. Name:MUKESH KUMAR Engineering college:GANDHI ENGINEERING COLLEGE Location (City/ Country):BHUBANESWAR Engineering Batch:2014-2016 Engineering Company/ Dream company to work for:DAMODAR VALLEY CORPORATION & TATA Area of Interest:TEACHING,PERFORM RESEARCH VIA EXPERIMENTS Project undertaken:FABRICATION OF COOLING TOWER Any other info you want to share
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