The principle of nitrogen generator applied in the chemical industry

The application principle of nitrogen generators in the chemical industry is mainly based on their ability to provide high-purity nitrogen gas, which has multiple functions in chemical production. Nitrogen generators separate nitrogen from air through physical methods, usually using pressure swing adsorption (PSA) or membrane separation technology. PSA technology utilizes carbon molecular sieves for selective adsorption of oxygen and nitrogen in the air, achieving nitrogen oxygen separation through periodic pressure changes to obtain high-purity nitrogen gas.

Application scenarios of nitrogen generators in the chemical industry

Production of synthetic ammonia and polyurethane: In reaction systems such as synthetic ammonia and polyurethane, nitrogen is used to regulate the reaction atmosphere, promote forward reaction, and isolate flammable and explosive media from contact with oxygen to prevent explosion risks and ensure smooth operation of chemical plants.

Safety guarantee: Nitrogen, as an inert gas, can effectively isolate flammable and explosive media from contact with oxygen, reduce the risk of explosion, and ensure the safety of chemical production.

Improving product quality: In chemical production, high-purity nitrogen can be used to clean pipelines and reactors, remove residues, and ensure product quality and stability.

The specific working principle of nitrogen generator

The working principle of a nitrogen generator mainly includes the following steps:

Air compression and pretreatment: The ambient air is compressed by a compressor and impurities such as moisture and dust are removed to ensure the efficiency and purity of the subsequent separation process.

Separate nitrogen: The pre treated compressed air enters the air separation unit. PSA technology adsorbs impurities through carbon molecular sieves, while membrane separation technology separates nitrogen through polymer membrane permeation.

Nitrogen generation and storage: The separated nitrogen is dried and purified by a filter to obtain high-purity nitrogen, which is stored and transported to the point of use through pipelines

Specification of nitrogen production device:

Nitrogen flow rate: 10~5000Nm ³/h (customized according to user requirements)

Nitrogen purity: 99~99.999%

Nitrogen pressure: 5-6 bar (pressure can be customized)

Control method: The equipment is controlled locally by PLC, and the main control room control is achieved through communication, which can achieve unmanned operation

Applicable environment: 5 ℃~37 ℃

Installation conditions: indoor, outdoor, frost resistant, load-bearing concrete floor, good ventilation