Cryogenic Air Separation Plant - Chinaprice: contact company for price
suction air filter and after being removed of dust and other
mechanical contaminants in it, it is compressed to the
pressure of 0.55MPa by centrifugal air compressor. Air from
the air compressor is cooled to 10℃ in the direct contact
after cooler and refrigeration unit after the water being
separated its condensed water, taken into the molecular
sieve adsorber for removing H2O, C2H2 and CO2. There are two
molecular sieve adsorbers which operate on a staggered
cycle, i. e. one vessel is adsorbing the contained impurities
while the other is being reactivated by waste nitrogen from
the rectifying column.
Then the cleaned air is divided into two streams, one of
them is taken into the rectifying column and cooled by the
returned waste nitrogen, oxygen and nitrogen through the
main heat exchanger. The steam- liquid air mixture is taken
into the lower column for rectifying, and herein the pure
nitrogen of 99.99% from the top of the column enters into
the evaporator- condenser and condensed by liquid oxygen from
the upper column. A part of the liquid nitrogen is fed to
the lower column as reflux. The other part is divided into
two streams, one of them after subcooling enters into the
top of the upper column after throttled, the other enters
crude argon condenser of crude argon column, after
vaporized, it enters in upper column.
Another cleaned stream is compressed in booster end of the
booster expansion turbine, and then enters the main heat
exchanger. Two streams of air from the middle and cold end
of the main heat exchanger joint together and enter into the
turbine expansion to generate most refrigeration for need of
the plant' s operation. After the expanded air is removed of
overheat through the thermosyphon heat exchanger, it enters
to the middle of the upper column for rectifying.
A stream of 8% Ar is drawn from middle- lower section of
upper column and enters Crude Argon Column I to be
rectified. Gas is drawn from top of Crude Argon Column I and
enters Crude Argon Column II, then enters condenser as its
reflux. The liquid at the bottom of Crude Argon Column II is
pumped into top of the Crude Argon Column I as reflux, the
crude argon is drawn from Crude Argon Column I and enters
heat exchanger then enters pure argon column, pure liquid
argon of 99.99% Ar is drawn from bottom of pure argon column
and enters Lar storage & gasification system.
The product oxygen with the purity of 99.8% O2 gained at the
bottom of the upper column is warmed up through the heat
exchanger and then delivered to the compressed oxygen
The LOX of 99.8% O2 is drawn from oxygen side of the
evaporator- condenser, some of them enters storage tank as
product. The product nitrogen of 99.99% N2 from recycle N2
compression system is supplied to the user for use.
The waste nitrogen from the top of the upper column is
warmed up, one part goes to the regeneration molecular sieve
adsorber, another goes to waste nitrogen tower to cool the
- Posted By: Henan Kenuo Energy Equipment Co., Ltd.
- Phone: 008637128888159
- Address: Dingliguoji Universal North Huanghe Road Jinming D, KAIFENG , China
Published date: August 22, 2014 -
- Business Description: Henan Kenuo Energy Equipment Co., Ltd. is a Chinese professional
manufacturer of air separation equipments specializing in gas supply
solution and gas investment, which is located in Kaifeng, the capital of
Song dynasty in Henan province. Founded for 30 years, the company
already occupies 200 acres and has 410 employees including 50
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