Hydrogenation of high boiling hydrocarbons

Mineral oils: processes and products – Chemical conversion of hydrocarbons – Plural serial stages of chemical conversion

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

208 95, 208 96, 208 99, 208251R, 208108, 208 39, 208309, 208 48R, C10G 4726, C10G 4736

Patent

active

RE0322652

ABSTRACT:
[In a hydrogenation operation employing an ebullated catalytic bed, recycle is recovered from the hydrogenated product with at least 25%, by volume, of the recycle boiling above 950.degree. F. The recycle is cooled to a temperature of from 350.degree. to 600.degree. F. to separate coke precursors, prior to recycle to the hydrogenation. Higher conversion levels can be achieved by effecting recycle in such manner.]Disclosed is a hydrogenation process using at least one fluidized catalytic stage and a recycle material of heavy hydrogenated effluent. The heavy effluent material is cooled to a temperature within 350.degree.-600.degree. F. to separate toluene and heptane insoluble coke precursors prior to recycle. This separation may be enhanced by the use of centrifugation, filtration or a bed of particulate material (e.g. calcined coke).

REFERENCES:
patent: 2010007 (1935-08-01), Bray
patent: 2715603 (1955-08-01), Lanning
patent: 3207688 (1965-09-01), Van Driesen
patent: 3238118 (1966-03-01), Arey et al.
patent: 3549517 (1970-12-01), Lehman et al.
patent: 3788973 (1974-01-01), Wolk et al.
patent: 3839187 (1974-10-01), Vanvenrooy
patent: 3844933 (1974-10-01), Wolk et al.
patent: 4058449 (1977-11-01), Reitz et al.
patent: 4151073 (1979-04-01), Comolli
patent: 4176048 (1979-11-01), Corns et al.
patent: 4211634 (1980-07-01), Bertolacini et al.
patent: 4214976 (1980-07-01), Kmak
patent: 4252634 (1981-01-01), Khulbe et al.
patent: 4255248 (1981-03-01), Rosenthal et al.
patent: 4358359 (1982-11-01), Rosenthal et al.
patent: 4457830 (1984-07-01), Kydd
patent: 4537675 (1985-08-01), Silver et al.

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

Hydrogenation of high boiling hydrocarbons does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hydrogenation of high boiling hydrocarbons, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydrogenation of high boiling hydrocarbons will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1332981

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