8 replies to this topic

[Lila54]

is there a reference for a relation to find the specific heat (Cp) for monoethanolamine as a function of temperature ? for example Cp= A+BT+CT^2+D^3 

 

thank you 

[latexman]

Vapor or liquid pure component? Aqueous liquid solutions? Please be specific.

[Lila54]

Vapor or liquid pure component? Aqueous liquid solutions? Please be specific.

pure liquid 

[jayari]

The source below has some tabulated data for data from 52°F to 86°F

https://cameochemica...v/chris/MEA.pdf

[MrShorty]

DIPPR is my go to source for this kind of information https://www.aiche.org/dippr

[latexman]

Do you have access to Aspen Plus or HYSYS?  If so, you can do many things.  You can access DIPPR and retrieve the liquid Cp polynomial.  You can generate Cp's at the temperatures you are interested in, such as:

 

TEMP PRES LIQUID CP MONOE-01

C bar cal/gm-K

0 1.01325 0.547961

5 1.01325 0.55012

10 1.01325 0.552436

15 1.01325 0.5549

20 1.01325 0.557507

25 1.01325 0.560249

30 1.01325 0.56312

35 1.01325 0.566113

40 1.01325 0.569222

45 1.01325 0.572441

50 1.01325 0.575763

55 1.01325 0.579184

60 1.01325 0.582697

65 1.01325 0.586298

70 1.01325 0.589982

75 1.01325 0.593745

80 1.01325 0.597583

85 1.01325 0.601492

90 1.01325 0.605468

95 1.01325 0.609509

100 1.01325 0.613612

[breizh]

http://www.ijche.com...d465b421f3f.pdf

 

Hi ,

Check for the link above , page 50 you will find a relation  Cp =fct (temp) . Check for the domain of validity  T  (303-353 K) .  Linear relation Cp= aT+b 

Good luck 

Breizh 

Edited by breizh, 30 December 2020 - 12:17 AM.

[breizh]

Hi,

Another reference: Yaw's handbook of thermodynamic and physical properties of chemical compounds 

 

CP liquid = A+BT+CT2+DT3  (joule/mole K)

C2H7NO

A 125.185

B 0.5798

C -1.5031 E-3

D 1.8061 E-6

 

temp domain ( 294-541 ) Kelvin

 

Good luck

 

Breizh 

Edited by breizh, 30 December 2020 - 05:15 AM.

[Lila54]

The source below has some tabulated data for data from 52°F to 86°F

https://cameochemica...v/chris/MEA.pdf

 

 

DIPPR is my go to source for this kind of information https://www.aiche.org/dippr

 

 

 

Do you have access to Aspen Plus or HYSYS?  If so, you can do many things.  You can access DIPPR and retrieve the liquid Cp polynomial.  You can generate Cp's at the temperatures you are interested in, such as:

 

TEMP PRES LIQUID CP MONOE-01

C bar cal/gm-K

0 1.01325 0.547961

5 1.01325 0.55012

10 1.01325 0.552436

15 1.01325 0.5549

20 1.01325 0.557507

25 1.01325 0.560249

30 1.01325 0.56312

35 1.01325 0.566113

40 1.01325 0.569222

45 1.01325 0.572441

50 1.01325 0.575763

55 1.01325 0.579184

60 1.01325 0.582697

65 1.01325 0.586298

70 1.01325 0.589982

75 1.01325 0.593745

80 1.01325 0.597583

85 1.01325 0.601492

90 1.01325 0.605468

95 1.01325 0.609509

100 1.01325 0.613612

 

 

 

Hi,

Another reference: Yaw's handbook of thermodynamic and physical properties of chemical compounds 

 

CP liquid = A+BT+CT2+DT3  (joule/mole K)

C2H7NO

A 125.185

B 0.5798

C -1.5031 E-3

D 1.8061 E-6

 

temp domain ( 294-541 ) Kelvin

 

Good luck

 

Breizh 

Thank you all for your responses that was really helpful