Asphalt conversion

Details Asphalt conversion Asphalt conversion

1978-05-15

1979-08-07

O'Keefe, Veronica

Mineral oils: processes and products

Asphalts, tars, pitches and resins; making, treating and...

Chemical modification of asphalt, tar, pitch or resin

208 56, 208111, C10G 300

Patent

active

041637070

ABSTRACT:
A process is disclosed for catalytically hydroconverting asphalt in a first reactor in the presence of a hydrogenated middle distillate and hydrogen under conditions effecting both hydroconversion of the asphalt and dehydrogenation of said distillate, fractionating the reaction product into at least one distillate fraction and a residual fraction, catalytically hydrogenating the middle distillate fraction in a second reactor and circulating at least part of the second reaction product to the first reactor, and circulating hydrogenation catalyst between the first and second reactors.

REFERENCES:
patent: 3407134 (1968-10-01), Wunderlich et al.
patent: 4073721 (1978-02-01), Kanbier et al.

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