Garbage classification, environmental protection and circular economy have been widely advocated in recent years. At present, Chinese lead-acid battery industry and waste battery recycling industry are undergoing profound changes. The integration of the upstream and downstream industry chain of lead-acid battery industry will become the future development trend. KDON-6000 / 3200, a small air separation plant cooperated by DEAR air separation and its customers, is applied in the circular economy industry to practice the green environmental protection, low consumption and high efficiency. Make a contribution to beautify the environment and realize the transformation of garbage into resources. The high-quality air separation plant provided by DEAR air separation has been praised by customers for making contribution to the rise of circular economy.
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Solution advantages |
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The unit adopts molecular sieve purification, booster turbine expander to supply the cooling capacity of the unit. The oxygen concentration is low (90% O2), the air compressor discharge pressure is very low 0.42MPa(G), and the energy consumption of the whole equipment is low.
1.Good safety: The oxygen evaporator is set to reduce the liquid oxygen concentration ofthe main cooling. At the same time, a large amount of liquid oxygen is discharged from the main cooling to reduce the risk of hydrocarbon accumulation in the main cooling.
2.Increase benefit: Liquid oxygen products for temporary use of backup system
3.Reasonable utilization: adopt air-cooled and cold water pre-cooling mode, make full use of waste nitrogengasto achieve the purpose of energy saving.
4.Advanced control: DCS control, high degree of automation, convenient operation.
5.Energy saving and consumption reduction: new molecular sieve is adopted to reduce air flow resistance, reduce air compressor discharge pressure and save energy. Reduce the heating time of molecular sieve regeneration and save the energy consumption. |
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PRODUCT |
OUTPUT N m³/h |
PURITY |
PRESSURE OF OUT ZONE Mpa (G) |
TEMP |
NOTE |
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OXYGEN |
6000 |
≥99.0% O2 |
0.3 |
40 ℃ |
INTERNAL COMPRESS TO 35 kpa |
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LOX |
200 |
≥99.6% O2 |
0.01 |
SATURATED |
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Nitrogen |
2000 |
≥99.9%N2 |
0.65 |
40 ℃ |
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Instrument Nitrogen |
1200 |
≥99.9% N2 |
0.65 |
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Note: measurement unit Nm3/H is measured at 0℃, 0.1013Mpa (A). It is called standard state quantity.
Note: the unit of measurement Nm3/h is measured at 0 ℃, 0.1013Mpa (A). It is called standard state quantity.
1.1 Take oxygen and nitrogen at different times
1.2 Operation cycle (interval between two large heating): ≥ two years
1.3 Heating and uncooling time of the device: ~ 36 hours
1.4 Starting time of the device (from the start of expander to the purity of oxygen product): ~ 40 hours
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Matching Units |
Unit |
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1. Centrifugal air compressor 2. Air pre-cooling system 3. Purification system 4. Booster turbine expander 5.Fractionator system 6.Crude nitrogen compression system 7.Oxygen compression system 8.Liquid storage system 9.Instrument control system 10.Electric control system |
1 Set 1 Set 1 Set 1 Set 1 Set 1 Set 1 Set 1 Set 1 Set 1 Set |
