Low CO for increased naphtha desulfurization

Mineral oils: processes and products – Refining – Sulfur removal

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C208S21600R, C208S213000, C208S209000

Reexamination Certificate

active

07422679

ABSTRACT:
Naphtha hydrodesulfurization selectivity is increased by reducing the amount of COX(CO plus ½ CO2) in the hydrodesulfurization reaction zone to less than 100 vppm. While this is useful for non-selective hydrodesulfurization, it is particularly useful for selectively desulfurizing an olefin-containing naphtha without octane loss due to olefin saturation by hydrogenation. The COXreduction is achieved by removing COXfrom the treat gas before it is passed into the reaction zone.

REFERENCES:
patent: 3551124 (1970-12-01), Iwaki et al.
patent: 3660276 (1972-05-01), Lacey
patent: 4300999 (1981-11-01), Davies et al.
patent: 4457834 (1984-07-01), Caspers et al.
patent: 5286373 (1994-02-01), Sudhakar et al.
patent: 5423975 (1995-06-01), Sudhakar et al.
patent: 5525211 (1996-06-01), Sudhakar et al.
patent: 5985136 (1999-11-01), Brignac et al.
patent: 6190540 (2001-02-01), Lokhandwala et al.
patent: 6231754 (2001-05-01), Brignac et al.
patent: 1028245 (1966-05-01), None
S.J. Tauster, et al., “Structure and Properties of Molybdenum Sulfide: Correlation of O2Chemisorption with Hydrodesulfurization Activity,” Catalysis, 63, pp. 515-519 (1980).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Low CO for increased naphtha desulfurization does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low CO for increased naphtha desulfurization, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low CO for increased naphtha desulfurization will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3978347

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.