Mineral oils: processes and products – Refining – Sweetening
Patent
1991-08-30
1992-12-08
Morris, Theodore
Mineral oils: processes and products
Refining
Sweetening
208203, 208206, 208208R, 208246, 208247, 208251R, 208253, 208301, C10G 2700
Patent
active
051695162
ABSTRACT:
A process for removal of arsenic from a hydrocarbon stream containing arsenic together with mercaptan and non-mercaptan sulfur compounds. The hydrocarbon stream is passed through at least two mercaptan oxidizing reactors in series wherein the mercaptans are oxidized to disulfides to produce a low mercaptan liquid containing no more than 1.5 ppm sulfur as mercaptans. The low mercaptan liquid is passed over an arsenic sorbent catalyst containing less than 20 weight percent gamma alumina to selectively sorb arsenic substantially without sorbing non-mercaptan sulfur compounds.
REFERENCES:
patent: 3542669 (1970-11-01), DeFeo
patent: 3782076 (1974-01-01), Carr et al.
patent: 3789581 (1974-02-01), Carr et al.
patent: 4849577 (1989-07-01), Boitisux
patent: 5064525 (1991-11-01), Frame et al.
Carr, N. L., D. L. Stahlfeld, H. G. Robertson, "Remove Arsine to Protect Catalyst", Hydrocarbon Processing, May 1985, pp. 100-102.
Kenneth H. Bacon, Alfred M. Henke, "Gasoline Sweetening Process With Molecular Sieves", Petroleum Refiner, Apr. 1961, pp. 109-112.
Levenspiel, O., "Chemical Reaction Engineering", John Wiley & Sons, Inc., 1972, pp. 260-263, 274-288.
Diemler William C.
Morris Theodore
LandOfFree
Removal of arsenic compounds from light hydrocarbon streams does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Removal of arsenic compounds from light hydrocarbon streams, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Removal of arsenic compounds from light hydrocarbon streams will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-958919