Chemical engineering Definition and 228 Threads

Hey everyone, I'm Decky. I have a Degree in Chemistry. Currently working as a Process Technician in the are of API production. I work away from home, only getting back home at the weekends to see my family. I'm considering doing either a Masters in Materials Science or a BEng in Chemical...

Homework Statement Chemical-plant equipment costs rarely vary in proportion to (i.e., linearly with) size. In the simplest case, cost varies with size according to the allometric equation, C = aSb The exponent is typically between 0 and 1. For a wide variety of equipment types, it is...

I am looking into different engineering fields I am only 12 but taking all high school classes and I need to know which career I'm interested in which I've been interested in engineering since I was 5. I want something that requires a lot of math but not electrical engineering...

Hi, PF! In the study of mass transfer involving chemical reactions, I have seen the use of two different non-dimensional parameters which apparently quantify the same ratio. These are the second Damköhler number and the Thiele modulus, which are defined as \textrm{Da}^{\textrm{II}} =...

Can anyone list what is the scope for chemical engineering environment?

What is the general procedure for calculating the mass of air in mass balance problems? what assumptions must be made? How do i convert this into mass from a percentage, e.g 21% oxygen & 79% nitrogen?

Hi, I'm Joel and I am pretty much finished school in Australia and have to make a decision about university in the near future. I love science (especially Physics) and mathematics at school so am certain that I will go into Science or Engineering but I am not quite sure what type. Whatever I do...

Hi! I read from Perry Green's ChE Handbook that the friction factor for Re ≤ 2,100 can be approximated by ƒ = 16/Re. But there was this question that I encountered (though I don't know the source) and according to it, ƒ = 64/Re for laminar flow. Can someone clarify which is which? Thank you!

Hello! I am new to the forum. Actually, I enrolled in the forum because of this question... It's been eating me for a while now. So I'll give you some background on my (convoluted) educational path. I started college undecided, then switch to a preprofessional chemistry path with hopes of...

I'm currently doing a design for my final year studies and it's regarding esterification process. My proposed reactor is CSTR, operating at a temperature of 60C and 400 kPa. Reactants are methanol and jatropha oil with sulphuric acid catalyst. For a commercial scale production of biodiesel...

Hello! I am not sure if this is the right forum to post this in, but I am trying to come up with an equation to predict the viscosity of a waterborne paint after it has been reduced 10% with DI water. The following viscosities were measured at 20*C on a Ford #4 cup, units are in seconds. The...

I am a nontraditional applicant with a bachelor's degree in neuroscience. I am almost finished a master's degree in chemical engineering, but many jobs that I wish to apply to have a "bachelor's of engineering" as a requirement. And a master's as only a "preference." Would these companies still...

I was thinking about going through chemical engineering major but then I saw these figures and I was shocked ! http://www.bls.gov/ooh/architecture-and-... There are 33.000 occupations for chemical engineers and, There are 300.000 occupations for electrical engineers...

Hello everyone, After long deliberation I decided that my major isn't for me, I would rather do Chemical Engineering. I have taken Algebra Physics I and II and gotten A's in both. I have the option of taking General Physics I or Honors Physics I. General Physics I is a calculus-based...

Hi! One of our professors told us once that in solving problems, always use absolute pressure in the computations. Then one time, I was solving some problems from Dr. Felder's Principles of Chemical Processes book, I often noticed that the pressures used in computations were not always in...

I have grown up planning on going into engineering. I loveeee science and math! However, once I became a mom I decided that an engineering career might be harder to start with a child. So, I decided to go to school for nursing since medical sciences really interest me and the schedule is really...

I am currently third year student doing Chemistry and Chemical Engineering Dual Degree and I am currently miserable. Like my many friends who became ChemE majors, I didn't know exactly what I was getting into. I imagined it is like chemistry except more complicated and advanced. I am doing quite...

Hello everyone! I'm currently in community college and I'm wondering if anyone knew what my chances were of getting into UCSD and an electrical or chemical engineering major. Upon transferring I would be missing one Physics class (or I would be taking it the summer prior to my first fall...

I need to measure the density of aqueous microdroplets in oil. My first idea was to obtain a set volume of the droplet-in-oil mixture and weigh it to obtain the density, weigh the same volume of oil without droplets, then estimate the volume of the droplets so I can work out their density...

Homework Statement A certain pyrite ore contains 85% of FeS2 and 15% of inerts. This ore is introduced into a roasting furnace with 20% excess air, in order to oxidize the FeS2 in the reaction: \textrm{FeS}_2 + \frac{11}{4}\textrm{O}_2 \rightarrow \frac{1}{2}\textrm{Fe}_2 \textrm{O}_3 +...

Hello PF! We were doing mass balances on mixing tanks in one of my ChemE courses, and in one of the problems we arrived at the following DE: \frac{dC_B}{d \theta} + 0.025C_B=0.0125 e^{-0.025 \theta} Where CB is the concetration of salt in the tank and θ is time. The professor made us solve the...

Hi. I am using Material Studio (MS) version 4.3 (yeah I know it's old but that's all I've got) and I have been trying to calculate this energy of a specific compound (N,N-dimethylformamide). I've learned that there are 3 ways on how to calculate energy using MS; Forcite, Dmol3 and Minimizer...

Homework Statement An aqueous effluent contains 12 M Cd2+ and 10 M Mg2+ as solution of nitrates. Current practice is use NaOH to selectively precipitate the metals. (a) Is it feasible to get 0 Cd impurities in Mg ppt by using NaF instead of NaOH (back up your answer with adequate calculations)...

Homework Statement In order to obtain commercial conversion levels in the production of ammonia, reactors operate between a pressure range from 150 to 300 atm, and a temperature range from 700 to 750 K. Calculate the mole fraction of N2 when the reaction reaches equilibrium at 300 atm and 723...

How possible is it for a microbiologist ( first degree) to run a masters in Chemical Engineering? Is it a better idea? please advice

Hi. I'm currently an undergraduate student studying for a BS in chemistry and doing pre-pharm courses (I wanted backup career). I've taken anatomy and orgo lectures and labs. What I enjoy from orgo class was that they give you a start and an end, you fill in the rest. I like problems that are...

Hi there! I'm currently pursuing a Bachelors of Science in Physics with minors in both Applied Math & Chemistry and am considering a career in engineering. Now, before all of you engineers jump my case about physics isn't engineering or whatever, please be mindful I'm here for help about my...

Right now I have a choice between these two disciplines, Chemical or Electronic engineering. Which one would remain suitable for me? My friends advice me to get into Chemical Engineering since they say its in a huge demand right now, however I am more inclined towards Electronic Engineering...

First, thank you for taking the time to read this. I need some guidance as I am inventing somewhat of a new edible product. Curious as to if someone can point me in the right direction for the type of chemist I should actually be looking for. At first I was under the impression that it would be...

I wanted to do chemical engineering at a particular uni but was ineligible to enter any of the engineering programs (lets call this uni A). I have 2 options since that uni A is the only uni in my location which offers chem eng. 1) Major in chemistry at uni A and take similar units as chem eng...

Homework Statement A hydraulic fluid initially at 60◦C is cooled to 35◦C using a co-current heat exchanger. Cooling water is available at 15◦C, which must not exceed 30◦C on leaving the heat exchanger. The flow rate of the hydraulic fluid is 1.5 kg/s, which has a specific heat of 5.2 J/gํ C...

Homework Statement I was revising the topic on the evaluation of fugacity of liquids and gases for my chemical engineering course, when I ran into an equation which I think, may be wrong as I think it may evaluate to ln0, which is infinity. Here is a snapshot of the equation: The equation...

hello friends my name is thembile from South africa starting next iam going to study chemical engineering via distant learning i was hoping to be given tips and what to expect and be given recommendations about what kinda books must i study in advance to equip myself regarding physics and maths...

1. Homework Statement Calculate the torque on the dam about the origin (Picture attached) due to the pressure force of the fluid. Homework Equations Pressure force is correct (dF) The Attempt at a Solution [/B] I have solve it; however, I am not sure if I calculated over the origin asked...

Hello, My post concerns getting jobs after my Masters degree in Chemical Engineering. I am currently in my 4th/senior year for a BS Chemical Engineering degree. I got accepted in a fifth-year program, so I can spend one more year at school and get my Masters degree. I am excited because I love...

Hi all, I'm a recent graduate of chemistry that wanted to be in chemical engineering but couldn't afford the schools around my location that offered it. While I spend a few years working and saving, I want to get ahead of the curve with the subject before I return to school. Would any kind...

Dear mates: I'm looking for a reference of the chemical engineerin problems: heat transfer unit operation, separation unit operation, grind unit operations, reactor operations for metallurgy and material science industry. Please recommendme the best one you know With all the best...

Hello friends. I am an incoming high school senior this year, and of course, the college application process is just around the corner. Despite my harsh troubles with Honors Chemistry last year, it was my favorite class. I am naturally a math & science oriented person, so I know this is the...

Does anyone know if chemical engineering is any interesting? I am only considering engineering majors now because of job prospects. Chemical Engineering I heard has a lot of physics and physical chemistry in it. I would like to go to grad school in physics and do something experimental and I am...

Hi guys, As the title suggest I am an student chemical engineer and was wondering if anybody could advise on some good books for the following subjects. I have used spoiler tags to hide the specific areas I will be covering so as to make this post a bit neater. Fluid Mechanics. Process...

I am in grade 12 now and I love chemistry and i wanted to be a chemist , but for some reasons i can't go to science school, so instead i decided that to go to engineering school and become a chemical engineer , but then again i had another problem , they only thing available for now is...

Hello, I am concerned for my future. I am interested in Chemical engineering as a subject, but the idea of spending my career making chemicals, being in oil/gas, or even in pharmaceuticals depresses me. I would like to get involved with environmental engineering, or work in sanitation or...

Hello all, I've got a somewhat mixed concept question from a Chemical Engineering computational methods class. I'm completely lost with this question, as I do not fully understand what it entails. The question (and data) is this: Homework Statement Data Set Given X Y 0.00 -2.17...

Hi everyone, I'm an a-level student (year 13) doing Physics, Chemistry and Maths. I am struggling of what university subject to apply for...I want to do a subject that is a combination of all three subjects I'm now doing. I like topics that I can go very very deep. I think quantum and...

Homework Statement Prior to entering a combustion furnace, air is heated up from ambient temperature (25 °C) to 250 °C. This change in temperature causes the specific enthalpy to change to 3745 J/mol. Assume that the pressure of the air leaving the heater is 150 kPa and the flow rate is 1.3 m3...

Hello, I just finished my lower division chemistry/physics sequence, and next semester I am transferring and will start taking my upper division chemical engineering classes. I was wondering what sort of projects I can do at home with my knowledge, or if someone can share ideas for DIY type...

Hello. I appreciate the time given to read through this. I am ending a stressful self-defining process to choose my major! I knew I would have to decide my major this week. I have been extremely stressed about choosing Mechanical or Chemical engineering. While some careers in both disciplines...

Heat Transfer Qts Engine oil at 60 oC flows over flat plate whose temperature is at 20 oC with a velocity of 2 m s-1. The length of the plate is 5m. What is the film temperature and the rate of heat transfer per unit width of the entire plate? Additional information (at the film temperature)...

1. State what is "Kauzmann Paradox" and provide your own explanation (or solution) for the paradox and derive a unique explanation using different approaches. 2. If you observe a phase transition phenomenon in your own experiment, how to determine the whether the transition is binodal or...

I'm a college student 17 years of age; I'm at the point in life where I need to use what degree I want to do. I have chosen the following a levels: - Physics - Further maths - Chemistry - Maths At the moment I'm thinking of doing either chemical engineering or maths. I have always been...