Chemical engineering Definition and 110 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.
The general balance equation is as follow: d[m{u+gz+v2/2)sys=(u+gz+v2/2)dmin-(u+gz+v2/2)dmout +dq+dw.
I understand that I would take in consideration the cross sectional area as well as the mass flow rate. However I can't figure out what else to consider as if atm pressure should be considered...
I'd like to do some experiments with flames at different Equivalence Ratios - but I'm confused as to how I can find the Equivalence Ratio for different conditions. Wiki-article
So the stoichiometric balance for Methane + Air is
CH4 + 2(O2 + 3.76N2) -> CO2 + 2H2O + 7.52N2
Referencing equations...
Summary: Since I did not start out in calculus 1 in my first semester of college I have to take an extra semester in my four years to get my bachelor's degree in Chemical Engineering and Clemson offers a minor in Nuclear engineering which would just add 15 more credit hours to my overall degree...
Hello everyone.
I am from Kolkata, India. This year I have cleared IIT-JEE and taken admission to the Indian Institute of Petroleum and Energy, Visakhapatnam Chemical Engineering which is under the mentorship of the Indian Institute of Technology, Kharagpur. Even though I had to pursue...
What are the differences between a degree in chemical engineering and a degree in chemical engineering technology.
I think that the main difference is that someone who studied ChemE Technology has more knowledge in chemistry than someone with a ChemE degree. Salary wise, which one pays the best...
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
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...
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...
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...
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
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...
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
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...
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...
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...
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...
<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...
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...
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...
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...
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?
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...
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...
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