Hydrodewaxing method with interstate recovery of olefin

Details Hydrodewaxing method with interstate recovery of olefin Hydrodewaxing method with interstate recovery of olefin

1989-01-25

1991-05-14

McFarlane, Anthony

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Plural serial stages of chemical conversion

208 84, 208 96, 208 97, 208100, 208 27, 208103, 208111, C10G 6510, C10G 1300

Patent

active

050153595

ABSTRACT:
Hydrocarbon feeds are dewaxed and hydrotreated in a two-stage dewaxing-hydrotreating reactor system with interstage separation of olefinic and naphtha and light olefins. Separation of the naphtha and olefins is carried out by stripping the effluent from the dewaxing reactor with a stripping medium such as make-up hydrogen or vapor from the hydrotreater effluent. Hydrogen recycle for the dewaxer and the hydrotreater is taken from the stripper/separator after removal of the olefinic naphtha and removal of contaminants. Separation of the lighter olefins from the olefinic naphtha may be improved by the use of an oil solvent such as naphtha introduced into the top of the interstage stripper/separator so that the recycle gas from the stripper/separator is essentially free of wet gas and heavier fractions.

REFERENCES:
patent: 3702818 (1972-11-01), Streed et al.
patent: 3755138 (1973-08-01), Chen et al.
patent: 4176048 (1979-11-01), Corns et al.
patent: 4414097 (1983-11-01), Chester et al.
patent: 4648957 (1987-03-01), Graziani et al.
Voorhies and Smith, Advances in Petroleum Chemistry and Refining, Ed. John J. McKetta, Jr., Interscience Publishers: New York, 1964, vol. 8, pp. 171-174.

Affiliated with

Also associated with

Rating

Hydrodewaxing method with interstate recovery of olefin does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hydrodewaxing method with interstate recovery of olefin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydrodewaxing method with interstate recovery of olefin will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1646334