Nitrous Oxide Gas Plants

Production line of Nitrous Oxide

Manufactured and Supplied by DSW
Nitrous Oxide Equipments
20000L cylinder 99.9%-99.999% industrial laughing gas
medical grade nitrous oxide
Food grade Nitrous Oxide is produced by Ammonium Nitrate
Common purity : 99.9%
Electronic purity : 99.999%

Production line of Nitrous Oxide- DSW Manufacturer

Nitrous oxide (N₂O) plants are facilities that produce this gas, which is commonly known as laughing gas.
DSW is one of the leading manufacturers and exporters of nitrous oxide plants or n2o factories from China.
Our Nitrous Oxide plant is very safe and economical, with an efficient Generation system that reduces power consumption and adds to safety.
Separated elements mean that the plant units have fixed dimensions, but the layout of the complete plant is roughly free owing to the different lengths and shapes of the connection tubes between the teams.
The installation and start-up process requires more time; some connections are only finished on the Customer’s site.

The Main Parts of N2O Plant

Melter & Reactor
Ammonium nitrate begins to decompose in water at 210°C. It takes a long time to reach a thermal set point of around 255°C. So, to speed up the start-up process, the ammonium nitrate solution is heated in the reactor to about 240°C.

N2O Condenser
The water leaving the reactor is saturated and removed by a condenser.
The condensate contains ammonium nitrate and nitric acid and should be reused. It should be purified before discharge.

Water Scrubber, Sodium Hydroxide Scrubber, Acid Scrubber
The gas leaving the condenser contains impurities. Produced by the decomposition of ammonium nitrate. The purification is carried out in the absorption tower by washing the gas in a closed loop.

Moisture Separator
The gas from the scrub contains condensate water, which can be extracted in a moisture separator.
Gas Holder
Nitrous Oxide Compressor
The product is fed directly into the compressor and into the three-stage non-lubricated reciprocating compressor.
This increases the nitrous oxide pressure to the operating pressure. Each stage is equipped with a cooling coil and a condensate collector.
The entire assembly of the compressor, along with its coils and traps, is immersed in water for maximum cooling of nitrous oxide gas.
Purge Bottle
Drying Units
The drying unit removes water vapour from the compressed gas by adsorption.
High-pressure Buffer Storage
Nitrous oxide is stored in six pressure vessels or pressure tanks with a pressure of 15 bar for buffering of the liquefaction unit.
Liquefaction Unit
Nitrous oxide is liquefied by the refrigerant at temperatures as low as –20°C.
Cylinder filling ramp
The filling of the gas cylinder can be completed according to the user’s requirements. The cylinder filling ramp is divided into 2 ramps with 5 to 50 points each, installed with safety instruments and tailpipes for filling the cylinders, and installed above the MS ramp.


Nitrous Oxide Plant

The primary industrial process for producing nitrous oxide involves the thermal decomposition of ammonium nitrate. However, other methods are also available, such as direct oxidation of ammonia or purifying off-gas from polyamide chain production to create it.

Nitrous Oxide Gas Plants

 Production line of Nitrous Oxide

gas cylinder certificates

Nitrous Oxide Production Processing
In the Melters, Ammonium Nitrate decomposes to produce a mixture of Nitrous Oxide and superheated steam. Ammonium Nitrate fumes, Nitrogen, and other Nitrogen oxides are also produced. Moisture and impurities can be removed using sulphuric, acidic, and caustic soda. Nitrogen traces are removed after compression with a compressor by bleeding the tops of storage vessels that store Nitrous Oxide.
Ammonium nitrate is melted in a melter. The molten ammonium nitrate flows into a combustion pot, decomposing ammonium nitrate according to the following reaction.
The reaction is a touchy one and must be controlled. The formation of N2O is prevented if the temperature is allowed to exceed a certain level. We have achieved a reaction efficiency of 95% in our plant. However, in practice, N2O combustion can also produce other impurities. Ammonium nitrate fumes and undecomposed ammonium are present. The primary scrubber recovers these gases. In the first water scrubber, the steam from the hot gas condenses, and the moisture and ammonium nitrate entrained in it are separated in the mist separator. The caustic cleaner removes residual ammonium, carbon dioxide, and other nitrogen oxides.
Nitrous oxide may be used as an aerosol propellant in various fields:
– for whipped cream (because it improves the foaming characteristics of the cream), syrups, concentrates of coffee, chocolate, various flavours, sauces for grilled meats, vinaigrette, etc.
– pharmaceutical field
– cosmetics (perfumes, eau de cologne, hair spray, etc.)
– household products, paints, varnishes, insecticides
– aerosols for low temperatures, such as de-icers, engine starting boosters, etc.