Method and device for purifying air

Application Number: 00121198
Application Date: 2000.07.31
Publication Number: 1282622
Publication Date: 2001.02.07
Priority Information: 1999/7/29 DE 19935383.2; 1999/11/26 EP 99123236.4
International: B01D53/04;F25J3/04
Applicant(s) Name: Linda AG.
Inventor(s) Name: Uurichi Fun Gmingen
Patent Agency Code: 72002
Patent Agent: guo xiaodong
Abstract The invention relates to an air cleaning method and device by heat regenerating adsorption method capable of removing impurities such as water, carbon dioxide, nitrogen monoxide, ethylene and/or propane from the air. At an adsorption cycle, the air to be cleaned is passed in order through the first adsorption zone housing the first adsorbent and the second adsorption zone housing the second adsorbent at the first temp T1. At a regeneration cycle, regeneration gas is introduced into the first adsorption zone at the second higher temp T2. Steam and/or carbon dioxide are almost completely removed in the first adsorption zone. The second adsorption zone is provided with the adsorbent containing a metal ion capable of strongly bonding nitrogen.