Beijing Silk Road Enterprise Management Services Co.,LTD
Beijing Silk Road Enterprise Management Services Co.,LTD Customer first, Sincere service
Add to Cart
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) | |
| 2. MS purification system | 1 set |
| Technical parameter(note:determined by final design) | |
| Manufactory | siad |
| Model | HXK-2166/8 |
| Air process | 2166m3/h |
| Inlet pressure | 0.75MPa(G) |
| Air inlet tempt. | 12℃ |
| Working time | 8h |
| M.S. regeneration inlet tempt. | 170℃ |
| M.S. regeneration outlet tempt. | 100℃ |
| Electric heater power | ~54KW |
| SCOPE OF SUPPLY(note:determined as manufacturer’s final list) | Q.T. |
| Ø MS absorber including M.S. | 2 |
| Ø Electric heater | 1 |
| Ø 13X M.S. | sufficient |
| Ø Filter | 1 |
| Ø Pipes and valves | 1 |
| Note: skid mouted. | |
| Image (for reference, determined by final design) |
| 3. Distillation column | 1 set |
| Technical parameter(note:determined by final design) | |
| Manufactory | siad |
| Model | FN-800 |
| Type | Single column rectification |
| Size | ～2600×3000×15000mm |
| Scope of supply | Q.T. |
| Ø Main heat exchanger | 1 |
| Ø Cooler | 1 |
| Ø condenser evaporator | 2 |
| Ø Nitrogen column | 1 |
| Ø Oxygen column | 1 |
| Ø Cold box | 1 |
| Image (for reference, determined by final design) | |
| 4. Expansion turbine | 2 sets |
| Technical parameter(note:determined by final design) | |
| Manufacturer | XI DA OR JIANG YANG |
| Medium | Air rich in oxygen |
| Expansion capacity | 290Nm3/h |
| Inlet pressure of expansion turbine | ～0.45MPa(A) |
| Outlet pressure of expansion turbine | ～0.13MPa(A) |
| Inlet tempt. of expansion turbine | ~125K |
| Braking type | Fan braking |
| Thermal insulating efficiency | ≥72% |
| Scope of supply (note:determined as manufacturer’s final list) | Q.T. |
| Ø Expansion turbine body | 2 |
| Ø Telescopic joint | 4 |
| Ø Inlet Filter | 2 |
| Ø Precious filter | 1 |
| Ø Air cleaner | 2 |
| Ø Silencer | 2 |
| Note: skid mouted with column | |
| Image (for reference, determined by final design) | |
|
| |
Annex 5 Instrument and electric control system
| KDNO-800/200 Instrument and electric control system of this plant adopts local panel as its main system,which is as following: | |
| Ø Air compressor and precooling unit has their own operation panel with alarm and operating button. Ø M.S. purifier and electrical heater have a local panel. Expansion turbine and distillation column have a panel, on which, there are digital meters for tempt, flow and liquid level. | |
| Scope of supply (note:determined as manufacturer’s final list) | Q.T. |
| Ø Purifier local panel | 1 |
| 1 |
| Ø Pressure difference transformer and 2 sets of valves | 7 |
| Ø Orifice plate | 4 |
| O2 output | 200nm3/h |
| O2 purity | >99.6% |
| N2 output | 800nm3/h |
| N2 purity | <10ppmO2 |
| Starting pressure | 0.75mpa |
| Plant running period | 12 months |
| Starting time | 0-24hours |
| Frequency | 50Hz |
