Dear All,
please help me to understand the following issue, in ammonia plant the ammonia vapors are being condensed by refrigeration compressor.
we have ammonia refrigeration compressor capacity of 200 tons/hr. compressor final discharge pressure is 18kg/cm2 and temperature 130 deg c. we are using sea water coolers for ammonia vapors condensing.

My question is
what is the critical pressure and temperature of ammonia.
will ammonia will condense above critical temperature and bleow critical pressure.
will ammonai will condense below critical temperatue and above critical pressure.
will ammonia will condense at equal to crtical pressure and temperature.

if my compresssor discharge pressure is increased to 25 kg/cm2 will we can condense the vapors or not. at which pressure and temperature ammonia will not condense.

please help me the above questions to understand easily.
if any mistake in the above qustion please let me know.
Thanks and Regards,
Suresh