Hydrotreating process with catalyst staging

Details Hydrotreating process with catalyst staging Hydrotreating process with catalyst staging

1988-07-05

1990-02-20

Caldarola, Glenn

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Plural serial stages of chemical conversion

208254H, 208228, 208249, C10G 4508, C10G 4704

Patent

active

049024043

ABSTRACT:
Disclosed is a process for hydrotreating a hydrocarbonaceous feed wherein the feed is treated with hydrogen, at hydrotreating conditions, in a first catalyst zone containing a conventional hydrotreating catalyst. The treated feed is then further treated in a second catalyst zone containing a catalyst represented MM'.sub.a S.sub.x where M is Cr or one or more divalent promoter metals selected from Mn, Fe, Co, Ni, Cu, and Zn; M' is one or both of Mo and W; x is 0.5 to 9, and a=1 when Cr is not one of metals represented by M, and 1<a.ltoreq.1.5 when Cr is one of the metals represented by M.

REFERENCES:
patent: 3459656 (1969-08-01), Rausch
patent: 3594307 (1971-07-01), Kirk, Jr.
patent: 4022682 (1977-05-01), Bludis et al.
patent: 4243553 (1981-01-01), Naumann et al.
patent: 4528089 (1985-07-01), Pecoraro et al.
patent: 4591429 (1986-05-01), Ho et al.
patent: 4650503 (1987-03-01), Jacobson et al.
patent: 4698145 (1987-10-01), Ho et al.
patent: 4705619 (1987-11-01), McCandish et al.

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