Sadah Ahmed

10 Questions 6 Answers 0 Followers

Questions related from Sadah Ahmed

How to determine the molar flow rate of the lean solvent?

I am simulating a simple stand alone absorber for CO2 capture using MEA and I want to know how to calculate the molar flow rate of the solvent. Thank you

12 December 2017 5,149 1 View

How to deal with Adduct in Aspen plus?

The product of 1-butyl-3-methylimidazolium acetate [Ionic liquid] when it reacts with CO2 is an adduct. I am trying to model this system in Aspen plus using E-NRTL. The problem arises when I want...

05 May 2017 6,654 0 View

How to overcome this problem in Aspen plus "SEVERE ERROR FORTRAN OVERFLOW ENCOUNTERED."?

I am trying to define an ionic liquid and I inserted all the physical properties in Aspen plus, but when I run it, I keep getting this message " SEVERE ERROR FORTRAN OVERFLOW ENCOUNTERED" Any clue?

03 March 2017 9,835 2 View

Is there a good method to predict functional NH3+ groups using Aspen?

I am using Aspen to estimate the physical properties for a certain components. So my question is, which good method that has a function group for NH3+?

02 February 2015 2,531 6 View

What are the Physical and chemical properties for L-arginine?

I need Physical and chemical properties for L-arginine like critical temperature, critical pressure and critical volume. Thanks.

12 December 2014 6,895 3 View

Can anyone provide me with the chemical properties of this component?

The following reaction shows the dissociation of 2-ethyl-ethanolamine carbamate in water giving EAE (2-ethyl-ethanolamine) and carbonate. RR'NCOO- + H2O HCO3- + EAE (a carbamate...

11 November 2014 1,516 3 View

Can someone help me in Aspen Plus

I am trying to enter the component 2-ethyl-ethanolamine carbamate into aspen plus as a component name and as a molecular formula ( C5H10NO3- ). However, it seems that the component is undefined....

11 November 2014 1,152 8 View

Can someone give me help in Aspen plus?

The following reactions is called Dissociation of Carbamate. It is a carbamate anions dissociating in water to give carbonate and 2‑(Ethylamino)ethanol. I am trying to enter this reaction in Aspen...

11 November 2014 9,872 3 View

How can we use data regression system in aspen plus?

I need help on data regression systems. If anyone can provide me with a tutorial in how to do data regression system on aspen plus that would be great. Thanks.

10 October 2014 6,566 2 View

Is anyone familiar with data regression?

When I do regression in Aspen plus, this message appears and it says: [ DRS CONVERGED IN 21 ITERATIONS, BUT CONSTRAINTS ARE NOT TIGHTLY CONVERGED. WARNING WHILE EXECUTING DRS CASE: "R-1"...

10 October 2014 5,199 1 View