A forum to ask questions or problems relating to Chemical Engineering. | Contact experts in Chemical Engineering to get answers
1,518 views 2,048 posts
Questions related to Chemical Engineering
what should be the minimum and maximum inter electrode distance in the electrodialysis recovery of metal ions and is there any books or articles that discuss about the inter electrode distance in...
16 February 2023 7,405 0 View
I would be interested to know if you have any thoughts on how this limitation could be addressed, since usually the S/B ratio affects the Hydrogen concentration positively.
15 February 2023 6,818 1 View
Probabilistic modelling, Forecasting, Renewable energy uncertainty prediction, ARIMA
15 February 2023 4,969 5 View
We have a mixture of dichloromethane (DCM-0.8 mole%) and hexane-0.15% (hexane-1, hexane-2,hexane-3, hexane-4) mixture. Give suggestion / method to separate to get pure DCM (99%).
04 February 2023 2,948 1 View
so how to prepare input file in ORCA manually,but ORCA does not have the COSMO solvation Moddel.please help me
04 February 2023 6,161 1 View
The conversion of sugars into bioethanol occurred in the fermentation medium. However for GC analysis, in capillary or packed column, water is biggest enemy for instrument. still in need of...
01 February 2023 7,567 2 View
For example scan rate of 2 mV s−1
01 February 2023 5,289 0 View
Hello everyone, please I need to know if I can use the linear form of Langmuir, Freundlich and Temkin isotherm in the case of competitive adsorption (quaternary system)
22 January 2023 3,656 3 View
Hi all, Attached below is the proton nmr spectra of biodiesel. The integration value of peak at 5.2 ppm is set to 1. and corresponding all other integration values are obtained. Is that right...
18 January 2023 2,024 3 View
Hello everyone, I would like to simulate a heat exchanger with tear stream in aspen plus. I got convergence in shortcut mode. But when I change it into the rigorous mode, I no longer can get the...
15 January 2023 1,840 4 View
Phenol sulfonation will be carried at around 105 degrees celsius with concentrated sulfuric acid.
14 January 2023 9,397 4 View
Hi! I'm doing scans using an atomic force microscopy (Brucker). The problem is when the scan ends, a message appears and I can't do another scan. The message says: " File captured, tip withdrawn,...
12 January 2023 2,034 4 View
How can I get time versus resistance change results with digital bench multimeter connected with computer?
12 January 2023 9,341 4 View
I wanted to know if there is such a possibility since I have observed quite little difference in qcal values in case of both PFO and PSO models.
02 January 2023 2,348 3 View
I want only metal evaporation. Color of metal granules is some balckish spots with metallic color.
01 January 2023 5,782 3 View
after making of the transport device in the material studio. I want to calculate current-to-voltage characteristics. In Dmol3, there is a task option electron transport, in that I/V...
01 January 2023 9,429 0 View
The variation of the drag coefficient with the Reynolds number for an infinite cylinder is a longstanding problem in fluid mechanics. According to my knowledge, the first data on this topic was...
29 December 2022 3,746 8 View
can anyone suggest finding nanoparticle size from UV-Vi spectra?
28 December 2022 8,876 2 View
Hi, I would like to know the significance of k-points in optimization steps of a crystal in qunatum espresso. iam doing optimization of gc3n4 and TiO2. Can we set same k-points for both crystals...
21 December 2022 7,218 2 View
how we can distinguish Top down on Bottom Up methods? Based on the methods or the precursor materials?
20 December 2022 9,198 0 View
Hi, I see papers on the Lotka-Volterra competition model in R and the authors have their a12 and a21 values set in the model. However, I am unclear on how they got to that value. Is it derived...
17 December 2022 6,854 0 View
I need information about steps in large scale rifamycin production.
08 December 2022 8,990 3 View
I did a water-soluble extract from a fruit and I'm going to use this extract to treat cells in vitro. In order to test the highest dosage in vitro (2 mg/mL), I will need to use a large volume of...
23 November 2022 462 1 View
I have to estimate ethanol in sample.For this I need protocol to prepare CAN reagent
23 November 2022 8,418 2 View