Chemical Engineering - Chemical Engineering Thermodynamics - Discussion

Discussion Forum : Chemical Engineering Thermodynamics - Section 4 (Q.No. 50)
50.
Claude gas liquefaction process employs cooling
at constant pressure.
by throttling.
by expansion in an engine.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
2 comments Page 1 of 1.

Chemi said:   9 years ago
Option B is also correct.
(1)

Pawan Kumar Sharma said:   2 years ago
Air can also be liquefied by Claude's process in which the gas is allowed to expand isentropically twice in two chambers. While expanding, the gas has to do work as it is led through an expansion turbine.

The gas is not yet liquid, since it would destroy the turbine. Final liquefaction takes place by isenthalpic (An isenthalpic process or isoenthalpic process is a process that proceeds without any change in enthalpy) expansion in a Joule-Thomson-Valve.

From this, we can conclude that Claude's liquefaction process employs the cooling of gases by expansion in an engine.

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