The thermodynamic equations of state (EoS) and processing of polymers

Polimery ◽  
2002 ◽  
Vol 47 (03) ◽  
pp. 166-174
Author(s):  
BEATA KOWALSKA
Keyword(s):  
Equations Of State ◽  
Thermodynamic Equations

Thermodynamic Derivations of Various Ammonium Salt Deposition Equations Common to the Refining Industry

CORROSION ◽  
10.5006/2855 ◽  
2018 ◽  
Vol 74 (10) ◽  
pp. 1158-1163 ◽  
Author(s):  
Brian R. Munson ◽  
Michael S. Cayard
Keyword(s):  
Ammonium Salt ◽  
Heat Exchangers ◽  
Equations Of State ◽  
Chemical Species ◽  
Refining Industry ◽  
Ammonium Salts ◽  
The Public ◽  
Salt Deposition ◽  
The Individual ◽  
Thermodynamic Equations

Ammonium salts represent a common problem for the refining industry. These saltslead to fouling of piping and heat exchangers resulting in loss of duty, underdeposit corrosionwhen wetted, and corrosive sour water solutionsonce sufficient water is available to dissociate these salts into solution. To properly manage fouling and corrosion associated with these salts, knowledge of the temperatures at which these salts will deposit is critical. In this age of process control, these temperatures can be predicted in real-time provided the salt deposition temperature relationships are known. The salt deposition equations for salts most often encountered in refining are not in the public domain. To close this gap, ammonium salt deposition equations were derived for NH4Cl, NH4HS, NH4Br, and NH4Fusing fundamental thermodynamic equations of state with published thermodynamic properties for the individual chemical species/reactions.

Thermodynamic equations of state for hydrazine and monomethylhydrazine

2002 ◽  
Vol 131 (3) ◽  
pp. 316-328 ◽  
Author(s):  
Michelle Barragan ◽  
Stephen Woods ◽  
Howard L. Julien ◽  
D.B. Wilson ◽  
Regor Saulsberry
Keyword(s):  
Equations Of State ◽  
Thermodynamic Equations
Sign in / Sign up

Export Citation Format

Share Document