chemical engineering Definition and Topics - 105 Discussions

Chemical engineering is a certain type of engineering which deals with the study of operation and design of chemical plants as well as methods of improving production. Chemical engineers develop economical commercial processes to convert raw material into useful products. Chemical engineering uses principles of chemistry, physics, mathematics, biology, and economics to efficiently use, produce, design, transport and transform energy and materials. The work of chemical engineers can range from the utilization of nanotechnology and nanomaterials in the laboratory to large-scale industrial processes that convert chemicals, raw materials, living cells, microorganisms, and energy into useful forms and products. Chemical engineers are involved in many aspects of plant design and operation, including safety and hazard assessments, process design and analysis, modeling, control engineering, chemical reaction engineering, nuclear engineering, biological engineering, construction specification, and operating instructions.
Chemical engineers typically hold a degree in Chemical Engineering or Process Engineering. Practicing engineers may have professional certification and be accredited members of a professional body. Such bodies include the Institution of Chemical Engineers (IChemE) or the American Institute of Chemical Engineers (AIChE).
A degree in chemical engineering is directly linked with all of the other engineering disciplines, to various extents.

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  1. PaxFinnica96

    Engineering Thermodynamics: Pass-out Turbine Question

    Hello Physics Forums, I have been struggling with this question for some time now and I'm not sure my method is correct - please see attached. Any help you can give to check I'm on the right lines would be very much appreciated! Cheers, C
  2. PaxFinnica96

    Engineering Steam Turbine with Open Regenerative Feed Heater

    I would very much appreciate anyone to cast their eye over my attempt at solving this problem which I've been struggling with the past few days. Many thanks in advance. Assuming that: energy input from open-type regenerative feed heater pump is negligible no energy is lost the heater pressure...
  3. R

    Effective way of slurry sampling

    I have ~50% slurry mass in a reactor with (4 PBT + 4PBT) agitator. Agitator is rotating at 94 RPM. To analyze reaction mass we are sending two samples at a time from bottom of the reactor. There is significant analysis deviations in these two samples. I feel that the sample is not...
  4. Will26040

    MATLAB MATLAB Plug flow reactor optimisation Problem

    The assignment is to find the optimal operating temperature and maximum product concentration of reactant B, assuming a constant temperature across the PFR length. Please could someone help? thanks the reaction is a series reaction: A → B → C (liquid phase) Here is my current code which is...
  5. Will26040

    How do I get the Convection Coefficient for steam in a jacketed vessel?

    Please could someone point me in the direction of an equation/ book I can use to obtain the convection coefficient for steam in a heating jacket. Steam is at 1 bar pressure. I think I need to use a dimensionless number. Thanks
  6. Will26040

    Engineering Tuning Rules for Lag Dominated FOPDT (first-order plus deadtime) model

    I am trying to find an alternative tuning rule for use with the transfer function specified. Please could someone help by pointing me in the right direction, thanks. Process transfer function: ## \frac {27e^{-3s}} {30s+1} ## Also, am I right in thinking that this process transfer function is...
  7. Will26040

    Equation for the Diameter of a Dryer

  8. Will26040

    How do you approximate between the Cp of a gas and a solid?

    I have the Cp of Benzoyl peroxide (BPO) in gas form (454.39 J/molK). What approximation could I make to find the Cp of solid BPO as I cannot find this info online? thanks
  9. A

    Gas - cylinder - piston problem

    Summary:: Seeking explanation to classical gas - cylinder - piston problem, not the solution. Problem 1.15 from 7th edition of Introduction to Chemical Engineering Thermodynamics by Smith, Van nes and Abbot) Classical problem, given: - gas in a confined cylinder - piston with weight is placed...
  10. A

    Catalyst Modelling

    I have little knowledge of MATLAB. I am trying to model the concentration profile along the photocatalyst film thickness in a photoreactor. Mass Transport takes place by diffusion and the rate of generation of component is given by rA. Boundary conditions: Concentration of the component that is...
  11. R

    Engineering Mass Transfer in a wetted-wall column

    Please can someone assist me as this particular question seems to have me completely confounded?
  12. K

    Gibbs' theorem and partial molar volume

    In the chemical engineering text of Smith, VanNess, and Abbott, there is a section on partial molar volume. It states that Gibbs theorem applies to any partial molar property with the exception of volume. Why is volume different? In other words, when evaluating the partial molar volume of a...
  13. B

    Non Corrosive pipes in compost

    So with our initial prototype for our anaerobic digester, we weren't able to sustain the right temperature inside the tanks. One idea we came up with is to use the heat from the compost bins that is only within 10-20 feet from our tanks. We plan to circulate the fluid inside the digestion tanks...
  14. L

    Optimal amount of CO2 to purge air in a device

    <Moderator's note: Moved from a homework forum.> Dear team, I wish to use CO2 to de-air a device by exploiting the physical properties of CO2 as a heavier, more dense gas to air and therefore displace air in a very thin tube that has a nozzle at the end where both air and CO2 can escape. I wish...
  15. D

    Photosensor-Brake System for a Small Plastic Car

    Hello, I am attempting to expand my physical understanding of some engineering principles I’ve learned during my first semester of ChemE. I am making a small plastic car that will be propelled with a weak fan. I am attempting something similar to a ChemE project car. Is there a way I can use a...
  16. R

    Mass Balance Approach problem

    Homework Statement 180kmol/hr of a three component mixture made up of 60 mol % A, 25 mol % B and 15 mol %. Component A is the most volatile ,component C is the least volatile. The mixture is to be passed through a 2 stage distillation process. 80% of component C leaves the bottom of the first...
  17. Naraneer

    Double Effect Evaporator

    Homework Statement A double effect forward feed evaporator is to concentrate a 12.5% solution of a certain chemical compound "YZ". The feed is to be at and is to be 120 F of such an amount as to contain 6250 "YZ" per hour. Saturated steam is available at 250 F (29.7 psi ). The accepted value of...
  18. M

    Chemical industry data

    I am curious about production amounts and prices for an annual period, for a few thousand commodity or common chemicals. I noticed a couple chemical intelligence services but they seem out of the price range for an amateur researcher. What kinds of sources are available to look further?
  19. N

    Programs Undergraduate Minors that are helpful for petroleum industry careers

    I am currently a Sophomore, studying chemical engineering at Drexel University. After college, I want to pursue a career in the downstream petroleum industry. However, I am unsure of what minor would help me get closer to reaching my goal. I have heard business and mathematics minors are great...
  20. C

    Re: The electrical excitation of quantum dots

    We most often witness the presentation of quantum dots in viles or containers which are excited via UV light. I am more interested in their electrical excitation. Could I simply take a sample of QDs from one of those viles and passing an electrical current through that sample excite the...
  21. Chemical Engineering Thermodynamics by Prof. M.S. Ananth (NPTEL):- Lecture 01: Thermodynamics and the Chemical Industry

    Chemical Engineering Thermodynamics by Prof. M.S. Ananth (NPTEL):- Lecture 01: Thermodynamics and the Chemical Industry

    Copyright strictly reserved to Prof Prof. M.S. Ananth and NPTEL, Govt of India. Duplication prohibited. Lectures: http://www.nptel.ac.in/courses/103106070/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=103106070
  22. Chemical Engineering Thermodynamics by Prof. M.S. Ananth (NPTEL):- Lecture 02: James Prescot Joule and the first law

    Chemical Engineering Thermodynamics by Prof. M.S. Ananth (NPTEL):- Lecture 02: James Prescot Joule and the first law

    Copyright strictly reserved to Prof Prof. M.S. Ananth and NPTEL, Govt of India. Duplication prohibited. Lectures: http://www.nptel.ac.in/courses/103106070/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=103106070
  23. Chemical Engineering Thermodynamics by Prof. M.S. Ananth (NPTEL):- Lecture 03:  Sadi Carnot and the second law

    Chemical Engineering Thermodynamics by Prof. M.S. Ananth (NPTEL):- Lecture 03: Sadi Carnot and the second law

    Copyright strictly reserved to Prof Prof. M.S. Ananth and NPTEL, Govt of India. Duplication prohibited. Lectures: http://www.nptel.ac.in/courses/103106070/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=103106070
  24. Chemical Engineering Thermodynamics by Prof. M.S. Ananth (NPTEL):- Lecture 04: Equilibrium and Extrema in work

    Chemical Engineering Thermodynamics by Prof. M.S. Ananth (NPTEL):- Lecture 04: Equilibrium and Extrema in work

    Copyright strictly reserved to Prof Prof. M.S. Ananth and NPTEL, Govt of India. Duplication prohibited. Lectures: http://www.nptel.ac.in/courses/103106070/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=103106070
  25. Chemical Engineering Thermodynamics by Prof. M.S. Ananth (NPTEL):- Lecture 05: Illustrative Calculations I

    Chemical Engineering Thermodynamics by Prof. M.S. Ananth (NPTEL):- Lecture 05: Illustrative Calculations I

    Copyright strictly reserved to Prof Prof. M.S. Ananth and NPTEL, Govt of India. Duplication prohibited. Lectures: http://www.nptel.ac.in/courses/103106070/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=103106070
  26. Chemical Engineering Thermodynamics by Prof. M.S. Ananth (NPTEL):- Lecture 06: Properties of pure substances

    Chemical Engineering Thermodynamics by Prof. M.S. Ananth (NPTEL):- Lecture 06: Properties of pure substances

    Copyright strictly reserved to Prof Prof. M.S. Ananth and NPTEL, Govt of India. Duplication prohibited. Lectures: http://www.nptel.ac.in/courses/103106070/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=103106070
  27. Chemical Engineering Thermodynamics by Prof. M.S. Ananth (NPTEL):- Lecture 07: The p-h chart

    Chemical Engineering Thermodynamics by Prof. M.S. Ananth (NPTEL):- Lecture 07: The p-h chart

    Copyright strictly reserved to Prof Prof. M.S. Ananth and NPTEL, Govt of India. Duplication prohibited. Lectures: http://www.nptel.ac.in/courses/103106070/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=103106070
  28. Chemical Engineering Thermodynamics by Prof. M.S. Ananth (NPTEL):- Lecture 08: Work calculation

    Chemical Engineering Thermodynamics by Prof. M.S. Ananth (NPTEL):- Lecture 08: Work calculation

    Copyright strictly reserved to Prof Prof. M.S. Ananth and NPTEL, Govt of India. Duplication prohibited. Lectures: http://www.nptel.ac.in/courses/103106070/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=103106070
  29. Chemical Engineering Thermodynamics by Prof. M.S. Ananth (NPTEL):- Lecture 09: Illustrative Calculations II

    Chemical Engineering Thermodynamics by Prof. M.S. Ananth (NPTEL):- Lecture 09: Illustrative Calculations II

    Copyright strictly reserved to Prof Prof. M.S. Ananth and NPTEL, Govt of India. Duplication prohibited. Lectures: http://www.nptel.ac.in/courses/103106070/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=103106070
  30. Chemical Engineering Thermodynamics by Prof. M.S. Ananth (NPTEL):- Lecture 10: Heat-Work Interconversion Devices

    Chemical Engineering Thermodynamics by Prof. M.S. Ananth (NPTEL):- Lecture 10: Heat-Work Interconversion Devices

    Copyright strictly reserved to Prof Prof. M.S. Ananth and NPTEL, Govt of India. Duplication prohibited. Lectures: http://www.nptel.ac.in/courses/103106070/ Syllabus: http://www.nptel.ac.in/syllabus/syllabus.php?subjectId=103106070
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