US2814653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-step process for the selective removal of acetylene from olefin and/or diolefin containing hydrocarbon streams
Assignee: Phillips Petroleum Co
•
Filing: 1954-09-13
•
Granted: 1957-11-26
•
Expires: 1974-09-13
Abstract
No abstract record available.
Inventors
- 👤 Robert J Hogan
- 👤 Lloyd E Gardner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:31
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/148; C07C7/163; C07C7/167; Y; Y10; Y10S; Y10S585/00; Y10S585/949; Y10S585/95
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A PROCESS FOR THE SELECTIVE REMOVAL OF AN ACETYLENE FROM MIXTURE OF HYDROCARBONS WHICH COMPRISES; CONTACTING SAID MIXTURE OF HYDROGEN, UNDER HYDROGENATION CATALYST, IN THE PRESENCE OF HYDROGEN,UNDER HYDROGENATION REACTION CONDITIONS AT A RELATIVELY LOW TEMPERATURE IN A FIRST STEP TO EFFECT REMOVAL OF A MAJOR PROTION OF SAID ACETYLENE AND THEN CONTACTING SAID CONTACTED MIXTURE OF HYDROCARBONS WITH A SUITABLE CATALYST UNDER HYDROGENATION PLUS POLYMERIZATION REACTION CONDITIONS AT A RELATIVELY HIGH TEMPERATURE IN A SECOND STEP TO EFFECT SUBSTANTIALLY COMPLETE REMOVAL OF REMAINING SAID ACETYLENE.
Claim 2
Dependent Claim
86 words
A PROCESS FOR THE SELECTIVE REMOVAL OF AN ACETYLENE FROM MIXTURE OF HYDROCARBONS WHICH COMPRISES; CONTACTING SAID MIXTURE OF HYDROGEN, UNDER HYDROGENATION CATALYST, IN THE PRESENCE OF HYDROGEN,UNDER HYDROGENATION REACTION CONDITIONS AT A RELATIVELY LOW TEMPERATURE IN A FIRST STEP TO EFFECT REMOVAL OF A MAJOR PROTION OF SAID ACETYLENE AND THEN CONTACTING SAID CONTACTED MIXTURE OF HYDROCARBONS WITH A SUITABLE CATALYST UNDER HYDROGENATION PLUS POLYMERIZATION REACTION CONDITIONS AT A RELATIVELY HIGH TEMPERATURE IN A SECOND STEP TO EFFECT SUBSTANTIALLY COMPLETE REMOVAL OF REMAINING SAID ACETYLENE.
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) | 1960-11-25 | 1961-05-27 | 1961-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-25 | 1965-05-27 | 1965-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-25 | 1969-05-27 | 1969-11-26 | $7700.00 | Window Closed / Lapsed |