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HANG ZHOU TAI LIAN CRYOGENIC EQUIPMENT CO., LTD.

[Province: Zhejiang ]

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261KW 380V / 220V 99.6% Industrial Oxygen Plant With CE Certificate

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261KW 380V / 220V 99.6% Industrial Oxygen Plant With CE Certificate

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99.6% Air Separation Plant KDNO-800/200 Industrial Oxygen Plant With Low Energy

Annex 1. Plant design basis (need buyer’s confirmation)

Design point of Atmosphere
Ø Atmosphere pressure	101.3kPa(A)
Ø Atmosphere tempt.	30
Ø Relative humidity	75%
Ø O2 contained in air	20.95%O2
Atmosphere tempt.
Ø Annual average tempt.	18.4
Ø Max. Tempt.	40
Ø Min. Tempt.	-1.8
Ø Summer average tempt.	30
Ø Winter average tempt.	7.5
Earthquake degree:	6 degree
Altitude:	50m
Impurity in air
Ø CO2	≤350 ppm
Ø SO2	≤0.44 mg/m3
Ø H2S	≤2.3 mg/m3
Ø CH4	≤5.2mg/m3
Ø C2H2	≤0.03 ppm
Ø CnHm (excluding C2H2)	≤5 ppm
Ø Mechanical impurity	≤10mg/m3
Power condition
Ø Low voltage power	380V/220V±5% AC 3 phases 4 ways
Ø Frequency	50±0.5HZ
Ø Installation capacity	261KW

Annex 2. Main parameter

Capacity and purity (out of cold box)
Item	Capacity(Nm3/h)	Purity		Pressure out of cold box (MPa, G)
N2	800±5%	≤10ppmO2		0.6
O2	200±5%	≥99.6%O2		0.034
Production capacity condition(0,101.325Kpa)
Starting pressure			0.75MPa(G)
Plant running period			12 months
Starting time			24hours
Unit power consumption			0.32KWh/m3N2

Annex 3 Description of the process:

Ø KDNO-800/200 air separation plant adopts the process of pressure nitrogen column with oxygen column, which is as following:

Ø The plant adopts the process of relux of waste nitrogen expanding, as well as pressure nitrogen column and oxygen column. Raw air enters air filter for removal of dust and other mechanical impurity, then it goes to screw air compressor to be compressed to about 0.75Mpa. After that, it goes to precooling unit via oil filter and cooler to be cooled to 8-10,then goes to MS purification system for absorbing of moisture, CO2 and CnHm.

Ø After purified, it goes to the main heat exchanger, which is cooled by cold reflux to saturated tempt. Then it flows to nitrogen rectification column, in where, air is separated to pure nitrogen and liquid air. Pure nitrogen is discharged from the top of column, then it is cooled to 12 by main heat exchanger. After that, it goes out of the cold box. Liquid air at the bottom of nitrogen column is cooled by cooler and throttled to the top of nitrogen column as cold source of condensed rising nitrogen. Air rich in oxygen in the condenser evaporator flows to the main heat exchanger to be reheated, most of which is scuked to turbine expansion. After that, air rich in oxygen returns back to the cold edge of main heat exchanger, in where, it is reheated to 12. Then it flows out of the cold box as the regenerative air of M.S. purifier. Part of liquid air is sucked form condenser evaporator at the top of nitrogen column flows to the top of oxygen column as relux after being throttled. Oxygen is sucked from the bottom of oxygen column flows out of cold box after being cooled and reheated by cooler and main heat exchanger.

Ø For satety, please drain part of liquid oxygen periodically to avoid accumulation of hydrocarbon, especially acetylene.

Annex 4. Scope of supply

1. Oil injected screw compressor	1 set ( wind cooling)
Technical parameter(note:determined by final design)
Manufacturer	Atlas Copco or Ingersoll
Model	GA200
Discharge capacity	36.1m³/min
Discharge pressure	0.75MPa(G)
Motor power	200KW
SCOPE OF SUPPLY(note:determined as manufacturer’s final list)	Q.T.
Ø Main motor	1
Ø Compressor body	1
Ø Electrical panel	1
Ø Spare parts	1
Image (for reference, determined by final design)