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Joule‐Thomson effects for mixtures of helium‐nitrogen‐methane and hydrogen‐nitrogen‐methane
Author(s) -
Sabnis Suman T.,
Wenzel Leonard A.
Publication year - 1971
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690170618
Subject(s) - joule–thomson effect , equation of state , thermodynamics , methane , nitrogen , hydrogen , helium , joule (programming language) , chemistry , ternary operation , physics , organic chemistry , computer science , programming language , power (physics)
Experimental isenthalps and corresponding Joule‐Thomson coefficients are reported for nitrogen and equimolar ternary mixtures of helium‐nitrogen‐methane and hydrogen‐nitrogen‐methane. The estimated precision of the Joule‐Thomson coefficients was within 1.5% of recent literature values. These Joule‐Thomson coefficients are compared with predictions from the virial equation and Beattie‐Bridgman, Benedict‐Webb‐Rubin, and Redlich‐Kwong equations of state. The predicted Joule‐Thomson coefficients are as accurate as predictions for the pure species. Standard mixing rules and methods of combining equations of state constants are satisfactory at higher temperatures. At low temperatures the predictions from the equations of state are poor.