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SO2 / H2S / C2H2 Air Separation Plant liquid Oxygen Plant 720Y-1500

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SO2 / H2S / C2H2 Air Separation Plant liquid Oxygen Plant 720Y-1500

SO2 / H2S / C2H2 Air Separation Plant liquid Oxygen Plant 720Y-1500
SO2 / H2S / C2H2 Air Separation Plant liquid Oxygen Plant 720Y-1500 SO2 / H2S / C2H2 Air Separation Plant liquid Oxygen Plant 720Y-1500 SO2 / H2S / C2H2 Air Separation Plant liquid Oxygen Plant 720Y-1500

Large Image :  SO2 / H2S / C2H2 Air Separation Plant liquid Oxygen Plant 720Y-1500

Product Details:
Place of Origin: China
Certification: ISO9001;2008 CE cetificate
Model Number: KDON-720Y-1500
Payment & Shipping Terms:
Minimum Order Quantity: 1set
Price: negotiation
Packaging Details: Packed in standard export packing
Delivery Time: 60working days after received your payment
Payment Terms: T/T or L/C
Supply Ability: 100sets month
Detailed Product Description
Product Name: Oxygen Plant Application: Separate Oxygen From Air
Oxygen Output: 720 +-5% Cube Meter Per Hour Feature: Long Service Life Low Energy Consumption
Standard: ISO9001;2008 CE Cetificate Purity: 99.6%
Air Discharge Capacity: 9000m3/h Air Discharge Pressure: 0-1.1mpa
High Light:

Industrial Oxygen Plant


Cryogenic Air Separation Plant

Air Separation Plant Industrial 720Y-1500 liquid Oxygen Plant With Low Energy Consumption

1. Equipment design basic conditions

1.1 Atmospheric conditions of the design points
Atmospheric Pressure                                          101.3kPa(A)
Atmospheric Temperature                                     30℃
Relative Humidity                                               75%
Atmospheric oxygen content                                  20.95%O2

1.2 Raw material conditions of air impurities:
CO2                                                                    ≤350 ppm
SO2                                                                                                                                         ≤0.44 mg/m3
H2S                                                                    ≤2.3 mg/m3
CH4                                                                    ≤5.2mg/m3
C2H2                                                                   ≤0.03 ppm
CnHm(Except C2H2)                                         ≤5 ppm
Dust concentration                                                ≤10mg/m3

1.3  Power condition                                                                                                         

High Voltage Power Supply                          10,000V±5%Three-phase three-wire
Low Voltage Power Supply                           380V/220V±5%AC Three-phase four-wire
Frequency                                                   50±0.5Hz

    Total installed capacity                                            ~1300KW(Nameplate power)


2.Main technical data

2.1 Output and purity(outlet cold box)

Design condition






Liquid Oxygen








≤10ppm O2





Second design condition






Liquid Nitrogen


≤10ppm O2






Remark:Nm3/h means under 0℃,760mmHg

2.2    Raw air compressor data:
 Air compressor design discharge capacity   ~9,000Nm3/h
 Air compressor discharge pressure                            ~1.1Mpa(A)

2.3    Operation period between two defrosting times          >2 Years

2.4    Defrosting time                                                     ~36 Hours

2.5    Starting Time                                                       ~24 Hours

2.6    Total electricity consumption                     1,157 kW

3. Process

KDON-720Y/1500 air separation plant is based on the different boiling points of each components in the air. The air firstly is pressed, precooled, and got removal of H2O and CO2. After cooling in the medium pressure heat exchanger until reaching to the liquefaction temperature, it rectifies in the column to get liquid oxygen and liquid nitrogen.

This plant is molecular sieve purifying air with turbo expander process.

After being removed dust and mechanical impurity in the air filter, raw air goes to the air turbine compressor to press the air to 1.1MpaA, and cooled until 10℃ in the air precooling unit. Then it enters into alternate working molecular sieve absorber to remove the H2O,CO2,C2H2.  The clean air is pressed by the expander and goes into the cold box. The presses air can be separated to 2 sections. After being cooled to 256K, one section is draw out to freezing unit 243K, then it is continuously cooled in the main heat exchanger. The cooled air will be draw out to the expander, and a part of expanded air goes into the main heat exchanger to reheat, then it gets out of the cold box. And the other parts go to the upper column. The other section is cooled by counter flow, and goes to the low column after being expanded.

After air being primarily rectified, we can get liquid air, waste liquid nitrogen and pure liquid nitrogen in the low column. Liquid air, waste liquid nitrogen and pure liquid nitrogen sucked from the low column go to upper column after being cooled liquid and pure liquid nitrogen cooler. After being rectified in the upper column, we can get 99.6% purity liquid oxygen in bottom of the upper column, it goes out as product. A part of nitrogen sucked from the top of the assist column goes out of the cold box as product.

Waste nitrogen sucked from the top of the upper column goes out of the cold box after being reheated by the cooler and main heat exchanger. Sucked part of it, it goes to molecular sieve purification system as the regenerative air source. Others are vented.




4. Equipment supply scope

4.1 Air filter                                                               1 set
Operation capacity                                              ~18,000m3/h
Filtration efficiency                                             ≥98%
Filtration resistance                                              0.8~1.2KPa


4.2Air compressor                                                        1 set (Atlas Copco or Ingersoll-Rand)
Discharge capacity                                                  ~9,000m3/h
Adjusting scope                                                      75%~105%
Discharge Pressure                                                   ~1.1MPa(A)
Discharge temperature                                              ≤40℃
Motor power                                                           ~1120kW
Shaft power                                                            ~1007kW
Cooling water temp.                                                ≤30℃
Cooling water Pressure                                             0.4MPa
Cooling water consumption                                      ~105t/h

Scope of supply:

4.2.1Compressor main body                                 1set

4.2.2 Main motor                                                    1 set

4.2.3 Pedestal                                                         1 set

4.2.4 Fuel supply system                                          1 set

4.2.5 Gas pipelines and their attachment in the unit  1 set

4.2.6 Lube pipelines and their attachment in the unit   1 set

4.2.7 Cooling water pipelines and their attachment in the unit    1 set

4.2.8 Valves in the boundary region                           1 set

4.2.9 Anti-surge system                                            1 set

4.2.10 Inlet guide vane and adjustment system            1 set

4.2.11 Inter stage cooler                                           1 set

4.2.12 End stage cooler                                            1 set

4.2.13 Emptying muffler                                         1 set

4.2.14 Imported filter                                              1 set

4.2.15 Anchor bolt                                                  1 set

4.2.16 Spare parts                                                   1 set


4.3 Air pre cooling system                                             1 Group
Discharge capacity                                                   9,000m3/h
Inlet pressure                                                          ~1.1MPa(A)
Air inlet temp.                                                       ≤40℃
Air outlet temp.                                                      ~8℃
Circulating water inlet pressure                                 0.4MPa
Circulating water inlet temperature                            ≤30℃
Circulating water capacity                                        ~50t/h
Motor power                                                           ~52KW

    Design Shaft power                                                 ~45KW

Scope of supply:

4.3.1 Imported cooling compressor                           1 set

4.3.2 Condenser                                                      1 set

4.3.3 Evaporator                                                     1 set

4.3.4 Water separator                                              1 set

4.3.5 Pipeline valves                                                1 set

4.3.6Cooling auto control element                             1 set

4.3.7 Apparatus control panel                                   1 set

4.3.8 Operating instrument panel                              1 set

Remark: All parts above is designed packing in a container


4.4 Air Low Temp. Refrigeration Units              1 group
Operation capacity                                                   9,000m3/h
Inlet pressure                                                         ~1.4MPa(G)
Air inlet temp.                                                       256K
Air outlet temp.                                                      243K
Circulating water inlet pressure                                 0.4MPa
Circulating water inlet temperature                            ≤30℃
Circulating water capacity                                        ~10t/h
Motor power                                                           ~35KW

    Design Shaft power                                                 ~30KW

Scope of supply:

4.4.1 Imported cooling compressor     1unit

4.4.2 Condenser                       1unit

4.4.3 Evaporator                      1unit

4.4.4 Pipeline valve                  1set

4.4.5 Cooling auto control element           1set

4.4.6 Apparatus control panel                1set

4.4.7 Operating instrument panel             1unit

Remark: All parts above is designed packing in a container


4.5 MS Purifier(Auto swift)                                     1 set
Operation capacity                                                   9,000m3/h
Working pressure                                                    1.1MPa(A)
Air inlet temp.                                                        10℃
Adsorption time                                                      4h
Electric heater power                                               ~180kW
The average electric heater power                              ~60kW

Scope of supply:

4.5.1Molecular sieve adsorption cylinder(including the molecular sieve)  each one for right and left sides

4.5.2 Filter                                                             1set

4.5.3 Electric heater                                                1set

4.5.4 Auto switch valve                                           1set


4.6 Rectification column system                                     1 set

Scope of supply:

4.6.1 Main heat exchanger                                        1 set

4.6.2 Upper column                                                1 pc

4.6.3 Main condense evaporator                                1 pc

4.6.4 Lower column                                                1 pc

4.6.5 Sub cooler                                                     1 set

4.6.6 Pipeline inside the column                               1 set

4.6.7 Low temp. valves                                           1 set

4.6.8 Cold box body                                                1 set

4.6.9 Platform,ladder                                            1 set


4.7 High-temperature boosting expansion unit                   1 set
Flow                                                                      ~4,800Nm3/h
Inlet pressure                                                         ~1.5MPa(A)
Inlet temp.                                                             ~150K
Outlet pressure                                                       ~0.12MPa(A)
Efficiency                                                              ~82%
Flow                                                                      ~4,800Nm3/h
Inlet pressure                                                         ~1.1MPa(A)
Inlet temp.                                                             313K
Outlet temp.                                                           313K

    Cooling water consumption                                   ~20t/h

Scope of supply

4.7.1 Boosting turbine expander main body               1set

4.7.2 Oil supply equipment                                      1set

4.7.3 Booster after cooler                                        1pc

4.7.4 Filter                                                             2sets

4.7.5 Precision reducing valve(Imported)              1set

4.7.6 Emergency shut-off valve                                1set

4.7.7 Booster return valve                                        1pc

4.7.8 Specific tools                                                  1set

4.7.9 Spare parts (Include 1pc of rotor)                1set


4.8 Low temp. expander system            1 set
Flow                                                                      ~2,000Nm3/h
Inlet pressure                                                         1.1MPa(A)
Inlet temp.                                                             112K
Outlet pressure                                                       0.56MPa(A)
Scope of supply

4.8.1 Turbine expander main body                           1unit

4.8.2 Instrument panel                                            1pc

4.8.3 Filter                                                             2sets

4.8.4 Specific tools                                                  1set

4.8.5 Spare parts(Include 1pc of rotor)                  1set


4.9 Liquid oxygen storage tank and filling Vehicle Systems 1set

Scope of supply:

4.9.1 Liquid oxygen storage tank                                     1pc(Installed in customer’s site)

Type:                                                                  Vertical,pearlite isolation

Effective volume                                                     200m3
Design pressure                                                       Normal pressure

4.9.2 Liquid oxygen filling pump for vehicle                    1pc(Imported)
Type                                                                     Centrifugal
Transmission flow                                                 18m3/h
Working pressure                                                  0.6MPa(G)


4.10 Liquid nitrogen storage and filling system 1set

Scope of supply:

4.10.1 Liquid nitrogen storage tank                              1pc
Type:                                                                 Vertical,Vacuum Insulated
Effective volume                                                  50m3
Design pressure                                                     0.8MPaG

4.10.2 Liquid nitrogen filling pump for vehicle                 1pc(Imported)
Type                                                                     Centrifugal
Transmission flow                                                 18m3/h
Working pressure                                                   0.6MPa(G)


5. Instrument control system

5.3 Instrument system scope of supply

5.3.1 DCS (Distribution Control System)                               1set
Main hardware
17 inch Color LCD operation station                           2sets
Printer                                                                     2units
Control station(Include control dealer and all kinds of

I/O cards etc.)                                                       1set
Auxiliary terminal board and Communication cable    1set
System software                                                     1set

5.3.2 Main instruments
UPS                                                                        1set
Pressure,Differential Pressure Transmitter                 1set
All types of adjusting valves                                      1set
solenoid valve                                            1set
solenoid valve                                            1set
Platinum thermal resistance                                        1set

5.3.3 Analyser                                                                    About 5sets

Carbon dioxide analyzer(Imported)                       1unit
Pure oxygen analyzer                                              1unit
Trace oxygen analyzer                                             1unit
Trace water analyzer                                                1unit
Oxygen analyzer                                                      1unit

5.3.4 Other instruments:                                                    1set
Include: Double mental thermometer, vane level gauge, boll-float level gauge,flash alarm,pressure controller,three valves block,low temperature heater,and mental flowmeter, etc. Tie-in and root valves on measuring point of utility project pipelines are contained in the scope of supply of the project design


5.3.5 Instrument panel beside the machine

Molecular sieve electromagnetism valve panel                1set
Panel beside the expander                                          1 set
Valve stand for analysis and sampling                         1 set
Complete sets of panels for online analyzer                 1 set
Switch board                                                                   1 set
Emergency button operating board                              1 set
(The wires and pipes of above instrument panel will be delivery after finishing assemblage)




6. Electric control system


6.3Type selection of electrical circuitry equipment(Take the final design as the standard)

6.3.1High voltage switchgear
Model                                                                       mid-set type vacuum switchgear  
Quantity                                                                   ~1set

6.3.2 Low voltage switchgear
Model                                                                       withdrawable switchgear
Technical parameter                                                   380V 35KA
Defense stage                                                            IP23
Quantity                                                                   ~5sets

6.3.3Pwoer adjusting panel                                                    1set



7Scope of buyer to manage

8.1 The buyer should guarantee that raw air quality of the inlet can satisfy to the requirement of attachment 1

8.2 Power supply transformer in the workshop

8.3 Lighting preventing equipment of workshop, distillation column, outdoor tank and oxygen pipes.

8.4 All civil construction and engineering materials include lighting, sanitation, water supply and drainage, communication, indoor air conditioning, fire control, heating device as well as lifting device inside workshop..

8.5 Circulate cooling water system, cooling water pipes spread until 1 meter in the air separation boundary area

8.6 Machine material and oil for the plant running (Show the list when first examination)

8.7 Instrument air for the test running, linkage debugging and start-up

8.8 High voltage leads to the high voltage panel, and low voltage leads to the low voltage panel

8.9 Other parts that was clearly mentioned in this contract.








FOB Shanghai USD



Air filter






Air compressor






Air precooling system




Including the water separator


Air Low Temp. Refrigeration Units






MS Purifier




Including Molecular sieve


Purification heater






Rectification column system






High-temperature boosting expansion unit






Low temp. expander system






Instrument control system




DCS control


Electric control system






Liquid oxygen storage and filling system




Buyer prepare


Liquid nitrogen storage and filling system




   Buyer prepare











Competitive Advantage:


We Hang Zhou tai lian  Co., Ltd. is a gas plant and machinery supplier which is special faced to Bangladesh market.

Our supply scope has: air separation plant (gas oxygen plant, liquid oxygen plant, nitrogen plant), acetylene plant, hydrogen plant, CNG station plant, etc.

Also we are exporting gas plant related items: air compressor, oxygen compressor, liquid oxygen pump, oxygen/nirtogen/argon cylinders, cylinder valves, regulators, cylinder testing machines.

We have more than 10 companies corporated in Bangladesh.

We have the Ce certificate

  We persists in the principle of process lays the foundation,standard strengthens the quality,Implement decides the success,Innovation changes the future. According to the requirements of ISO9001 quality system standard, we have established effective quality system and feasible quality manual, which are firmly implemented. Over the past ten years, we have installed more than 300 air separation plants all over the world and have obtained the recognition of users. Our products are widely marketed throughout more than 30 provinces and autonomous regions, and also exported to dozens of countries including Vietnam, Kazakhstan, Bangladesh, Iraq, Egypt, Cambodia, Angola, Philippines, Pakistan, Venezuela, North Korea, Indian, Nigeria,etc.



High voltage 10000V
Low voltage 380V/220V
Frequency 50Hz
Liquid oxygen output 720nm3/h
Gaseous nitrogen 1500nm3/h
Liquid oxygen purity 99.60%
Nitrogen purity <10ppm O2
Total installed capacity 0-1300kw

SO2 / H2S / C2H2 Air Separation Plant liquid Oxygen Plant 720Y-1500 0





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