Changxing Haihua Chemical Co., Ltd. is located in Dingxin Development Zone, Jiapu Town, Changxing County, Zhejiang Province. It is a professional manufacturer of carbon molecular sieve for p.s.a pressure swing adsorption nitrogen production. The company's existing production scale ranks first in the same industry. In 2001, the company was recognized as "high tech enterprise of Zhejiang Province" by Zhejiang science technology department. In recent years, the company has undertaken one "Zhejiang province innovation project", one "provincial science technology center enterprise innovation fund" other science technology plan projects. The company's carbon molecular sieve series products have obtained 1 national key new product, 1 national product, 2 provincial high-tech products 8 provincial new products. The company has passed the ISO9001 (2000) international quality system certification in the same industry, obtained the provincial clean production acceptance. The company has been rated as AAA credit enterprise credit enterprise.

At present, the carbon molecular sieve series products produced by the company have been successfully applied to P · s · a nitrogen production equipment, have been designated as supporting products by many large medium-sized PSA production enterprises. The company has obtained the right to export, the products are mainly sold to EU countries, Southeast Asia, Hong Kong Macao. The "Haihua" trademark registered by the company has enjoyed high popularity in the domestic foreign markets.

PSA nitrogen production process

Pressure swing adsorption (PSA) is a kind of gas adsorption separation technology, which plays an irreplaceable role in the field gas supply in the world.

CMS is the core part of PSA nitrogen equipment. Carbon molecular sieve (CMS) is selected to separate air obtain nitrogen, which can adsorb oxygen (O2), carbon dioxide (CO2), water (H2O) in the air. Under the condition of adsorption equilibrium, the higher the gas pressure, the greater the adsorption capacity of any adsorbent. On the contrary, the lower the pressure, the smaller the adsorption capacity.