Chemistry of hydrocarbon compounds – Purification – separation – or recovery – By contact with solid sorbent
Patent
1998-02-12
2000-06-27
Griffin, Walter D.
Chemistry of hydrocarbon compounds
Purification, separation, or recovery
By contact with solid sorbent
585826, 585809, 585820, C07C 700, C07C 712
Patent
active
060809051
ABSTRACT:
Processes using heterogeneous adsorbents are disclosed for purification of olefins such as are typically produced by thermal cracking of suitable hydrocarbon feedstocks, by passing a stream of olefin having from 2 to about 8 carbon atoms, containing acetylenic impurities having the same or similar carbon content, and optionally saturated hydrocarbon gases, through a particulate bed of predominantly a support material having high surface area on which is dispersed at least one metallic element. Adsorption is carried out in an essentially dihydrogen-free atmosphere within the bed, selective and reversible adsorption and/or complexing of the contained acetylenic contaminants with the adsorbent, and thereby obtain purified effluent which contains less than a predetermined level of the acetylenic impurities. Selective and reversible adsorption and/or complexing of the contained acetylenic impurities with the adsorbent is continued until levels of acetylenic impurities in the effluent stream increase to a predetermined level. Thereafter the resulting bed of adsorbent is regenerated in the presence of a reducing gas containing dihydrogen to effect release of the contained acetylenic impurities from the adsorbent.
REFERENCES:
patent: 2889893 (1959-06-01), Hess et al.
patent: 3549719 (1970-12-01), Duyverman et al.
patent: 3755488 (1973-08-01), Johnson et al.
patent: 3792981 (1974-02-01), Hettick et al.
patent: 3812057 (1974-05-01), Morgan et al.
patent: 3870482 (1975-03-01), Walker et al.
patent: 3912789 (1975-10-01), Frevel et al.
patent: 4019879 (1977-04-01), Rabo et al.
patent: 4034065 (1977-07-01), Kasai et al.
patent: 4082694 (1978-04-01), Wennerberg et al.
patent: 4193972 (1980-03-01), Pohlenz
patent: 4268420 (1981-05-01), Klotz
patent: 4269813 (1981-05-01), Klotz
patent: 4292457 (1981-09-01), Klotz
patent: 4292458 (1981-09-01), Klotz
patent: 4425255 (1984-01-01), Toyoda et al.
patent: 4926001 (1990-05-01), Alagy et al.
patent: 4992601 (1991-02-01), Kling
patent: 5332705 (1994-07-01), Huang et al.
Kaminsky Mark P.
Pei Shiyou
Whittaker Robert C.
Wilsak Richard A.
BP Amoco Corporation
Griffin Walter D.
Kanady Mary Jo
Nguyen Tam M.
Oliver Wallace L.
LandOfFree
Olefin purification by adsorption of acetylenics and regeneratio does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Olefin purification by adsorption of acetylenics and regeneratio, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Olefin purification by adsorption of acetylenics and regeneratio will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1785747