New nitrogen production unit
Thread Content
Our company plans to install a nitrogen production facility; the expected production volume in the future will be greater than 12,000 Nm3/h, with a purity level of ≥99.999%. We would like to learn more about nitrogen production processes, as well as which processes are currently considered the most advanced and safe, and which ones offer lower construction and operating costs
Nitrogen production equipment is mainly used to extract nitrogen from the air. The main processes for nitrogen production include the following: 1. **Gas separation method**: Molecular sieves are used to absorb oxygen from the air, thereby separating nitrogen from argon. 2. **Compressed air adsorption method (PSA method)**: The compressed air adsorption method, also known as pressure swing adsorption, is suitable for the production of nitrogen with a purity of less than 99.9995%. Among them, the Twin Tower PSA process is one of the most widely used methods at present. 3. **Cooling separation method**: This involves separating nitrogen and oxygen using a separator at low temperatures. This method is suitable for the production of large-scale, high-purity nitrogen. 4. **Membrane separation method**: This is a technique that uses polymer membranes to separate nitrogen and oxygen. This method is suitable for small-scale nitrogen production, but its cost is high. The currently advanced, safe, and cost-effective process is the Twin Tower PSA process. It separates nitrogen and oxygen by changing pressure; no raw materials are required, only energy. This method is easy to operate, runs stably, features a long equipment lifespan, and has low maintenance costs. The construction cost of this process mainly includes equipment purchase costs, installation costs, and commissioning costs. Operating costs mainly consist of electricity consumption and equipment maintenance expenses. The specific cost of constructing a nitrogen production facility depends on factors such as the project’s specific requirements, production scale, and location; generally, it is necessary to consult professional equipment suppliers to obtain detailed quotes. I hope this information is helpful to you! If you have any other questions, feel free to ask at any time. .
This post was last edited by zsw135 on 2023-10-26 at 13:45. Simply producing nitrogen is not economical; the cryogenic method can be used to produce oxygen, nitrogen, and other gases simultaneously. By setting up an air separation unit, nitrogen can be used internally while the other gases can be sold. The main process flow includes full-low-pressure molecular sieve purification and adsorption, refrigeration via turbine air compression and expansion, nitrogen extraction from the upper tower along with external compression and storage + transportation; feel free to contact us if you are interested