Gas adsorbing element and method for forming same
US5348922A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 14, 1992 |
| Grant date | Sep 20, 1994 |
| Priority date | — |
| Expiry date | Jul 14, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F2203/1084
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A gas adsorbing element is formed into a honeycomb-shaped laminate having many small channels penetrating from one end surface to the other and in which hydrophobic high silica zeolite powder is exposed on the walls of the small channels. The hydrophobic high silica zeolite is, for example, a zeolite which is produced by removing most of the aluminum component from an ordinary zeolite. In forming the honeycomb-shaped laminate, it is favorable that non-flammable sheets are laminated and the laminate is impregnated with a dispersion of high silica zeolite powder and with an inorganic binder, and that the high silica zeolite powder is fixed in fiber gaps and on the surface of the non-flammable paper. It is desirable that the non-flammable sheet is a low density inorganic fiber paper and is baked either before or after forming the honeycomb-shaped laminate. This element adsorbs little water vapor even when the process air is highly humid, and is able to adsorb and remove organic solvent vapor and bad odor material in the air with high efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.