US3905783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of purifying an air or gas flow of vaporous or gaseous impurities adsorbable in filters
Assignee: REKUPERATOR KG DR- ING SCHACK & Co DORTMUND GERMANY A GERMAN Co
•
Filing: 1973-06-22
•
Granted: 1975-09-16
•
Expires: 1993-06-22
Abstract
Abstract Method of purifying an air or gas flow of vaporous or gaseous impurities adsorbable in filters which includes passing the flow through an adsorption filter for purifying the flow, passing a counter-flow of an inert gas formed from the combustion of at least one of carbon, coke and hydrocarbon substance through the adsorption filter after it has attained a predetermined loading of the impurities so as to desorb the adsorption filter, cooling the inert gas laden with the desorbed impurities so as to condense the desorbed impurities, and then separating the condensed desorbed impurities together with condensed water from the remainder of the inert gas flow.
Inventors
- 👤 Karl Winter
- 👤 Gunter Staschik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:39
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/02; B01D53/04; B01D2257/00; B01D2257/70; B01D2257/702; B01D2259/00; B01D2259/40; B01D2259/403
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
89 words
METHOD OF PURIFYING AN AIR OR GAS FLOW OF VAPOROUS OR GASEOUS IMPURITIES ADSORBABLE IN FILTERS WHICH COMPRISES PASSING THE FLOW THROUGH AN ADSORPTION FILTER FOR PURIFYING THE FLOW, PASSING A COUNTER-FLOW OF AN INERT GAS FORMED FROM THE COMBUSTION OF AT LEAST ONE OF CARBON, COKE AND A HYDROCARBON SUBSTANCE THROUGH THE ADSORPTION FILTER AFTER IT HAS ATTAINED A PREDETERMINED LOADING OF THE IMPURITES SO AS TO DESORB THE ADSORPTION FILTER, COOLING THE INERT GAS LADEN-WITH THE DESORBED IMPURTITIES SO AS TO CONDENSE THE DESORBED IMPURITIES, AND THEN
Claim 2
Dependent Claim
89 words
METHOD OF PURIFYING AN AIR OR GAS FLOW OF VAPOROUS OR GASEOUS IMPURITIES ADSORBABLE IN FILTERS WHICH COMPRISES PASSING THE FLOW THROUGH AN ADSORPTION FILTER FOR PURIFYING THE FLOW, PASSING A COUNTER-FLOW OF AN INERT GAS FORMED FROM THE COMBUSTION OF AT LEAST ONE OF CARBON, COKE AND A HYDROCARBON SUBSTANCE THROUGH THE ADSORPTION FILTER AFTER IT HAS ATTAINED A PREDETERMINED LOADING OF THE IMPURITES SO AS TO DESORB THE ADSORPTION FILTER, COOLING THE INERT GAS LADEN-WITH THE DESORBED IMPURTITIES SO AS TO CONDENSE THE DESORBED IMPURITIES, AND THEN
Claim 3
Dependent Claim
22 words
Method according to claim 1 wherein the flow of impurities and the inert gas flow are passed alternatingly through different adsorption filters.
Claim 4
Dependent Claim
46 words
Method according to claim 1 wherein, after separating the condensed water and desorbate from the remaining inert gas flow, the inert gas employed for desorbing the adsorption filter is passed with vaporous remainder of impurities again through adsorption filters that are alternatingly engaged in adsorption operation.
Claim 5
Dependent Claim
18 words
Method according to claim 1 which comprises drying the inert gas before passing it through the adsorption filter.
Claim 6
Dependent Claim
20 words
Method according to claim 1 which comprises drying and cooling the inert gas before passing it through the adsorption filter.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-15 | 1979-03-17 | 1979-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-15 | 1983-03-17 | 1983-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-15 | 1987-03-17 | 1987-09-16 | $7700.00 | Window Closed / Lapsed |