Process and apparatus for upgrading steam cracked tar

Details Process and apparatus for upgrading steam cracked tar Process and apparatus for upgrading steam cracked tar

2008-01-31

2010-11-23

Caldarola, Glenn A (Department: 1797)

Mineral oils: processes and products

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

Chemical modification of asphalt, tar, pitch or resin

C208S095000, C208S086000, C208S309000

Reexamination Certificate

active

07837854

ABSTRACT:
A process and apparatus are provided for upgrading steam cracked tars. The invention also relates to a steam cracking process and apparatus for reducing the yields of tars produced from steam cracking while increasing yields of higher value products, heating cooled steam cracker tar containing asphaltenes, to a temperature, e.g., above about 300° C., which is sufficient to convert at least a portion of the steam cracked tar to lower boiling molecules. The resulting heat-treated tar can be separated into gas oil, fuel oil and tar streams.

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