Search results for query: *

There are different levels of refrigeration with various types of efficiencies. Would like to know the various efficiency range (preferably VDMA 24247) for Both small systems (Home refrigerators) and large scale industrial systems (Industrial refrigerators) Water systems i.e. 40 deg C to -4Deg...

As a student, we would love to have the opportunity to talk with Engineers, in case you are interested. May I request if we can arrange a meeting of like-minded professionals to meet or have a chance for the students to talk to them? Please comment in case you are interested to talk. I...

From the following table is it possible to calculate the pre-exponential factor? Any relevant text software we can find preexponential factors? Wiil RMG software able to do it? The reference of the paper is https://doi.org/10.1016/j.susc.2021.121834 RMG software...

Thank you so much for your suggestion. The reactor I was talking about may not use a fluidized bed as the fluid is poisonous to the catalyst. From one old reference (attached below), I got the approximate reactor configuration. Which indicated the reactor tubes are cooled with counter-current...

The reaction is highly exothermic. The reactor is designed in such a way that heat can be removed from the catalyst. Otherwise, Ignition can happen. So heat removal through jacket is major work in reactor design. Now is there any software that can help me design the jacket surfaces are...

The reference I am following https://www.ou.edu/c... of Freedom.pdf So according to the reference we have two degrees of freedom So if is specify the number of stages and feed locations are the systems fully defined? So in my case, I have strict feed concertation A & B Distillate...

@IRstuff & @ashtree thank you so much for your inspiration.

Hi, I am a 2nd-year grad student. This would probably be my first in-person AIChE. (if it happens). I am super excited but also a little confused how should I prepare? The reason for my confusion is, I have a wide range of experience in my tiny career. BSc Chemical Engineering (Asia) Worked as...

I am using Aspen plus to simulate a process where we have to separate the product and undesired product in Separation 1 column and Separation 2 column equipment respectively. Both of the separation columns use water, so they have some amount in their respective outlet stream based on the...

Dear ChemEs I know that in reversible reaction the reaction will get forward or backsword depending on le chatelier principle. But if we have multiple reactions happening on the surface of the catalysts, how the reactions get affected if we have for example higher pressure or higher heat...

Dear ChemEs I know that in reversible reaction the reaction will get forward or backsword depending on le chatelier principle. But if we have multiple reactions happening on the surface of the catalysts, how the reactions get affected if we have for example higher pressure or higher heat...

Chemical Engineering has been an excellent versatile experience for me. Would like to know if any chemical engineer is working as Energy Analyst. What is that job prospects and what are the challenges, and maybe what are the day-to-day activity? Currently, I am a graduate student with...

One of the most in efficient and hard to control process. Any Altruist in Ethylene Oxide Plant? What are generally per pass conversions nowadays? What about fractions of oxygen conversions in the reactors? Would appreciate any info. Thanks

@georgeverghese exactly. Your expression is what I knew but in the industry, I am seeing new selectivity calculations. Selectivity= Mole of desired Product formed (feed basis)/ Mole of Reactant Feed) I am quoting my supervisor "selectivity to EO on a per mole of inlet ethylene basis. That is...

I know selectivity is = No of mole of desired product formed/ No of mole of reactant took part in the reaction (reactant Basis) Ethylene Oxide example Considering only the first two reactions (No further oxidation of EO) Assume 153 Kmol/hr of EO forms So if I have 90%...

Dear altruist I am a Practical Nonisothermal Reactors Design. Looking for Relevant Reference and Standards

Thank you for your reply. Yes, runaway reaction occurs if the reaction is not controlled by a large amount of inert.

Highly Exothermic. Partial Oxydation.

Sorrry Packed bed

My notion was that we should use counter current in the jacket because of efficiency but my friend said "The co-current system is often used in industry for example, protection of acid corrosion economizer, temperature cross-over, etc." In our case the case of this PBR, the inlet...