Process for producing microspherical, oil-containing carbonaceou

Details Process for producing microspherical, oil-containing carbonaceou Process for producing microspherical, oil-containing carbonaceou

1983-07-26

1986-11-25

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Formation of solid particulate material directly from molten...

By impinging or atomizing with gaseous jet or blast

44 1F, 201 6, 201 8, 201 42, 264 14, 264 15, 264 296, 264 297, 264118, 264121, 264330, B29B 916

Patent

active

046248072

ABSTRACT:
A two-step process for producing microspherical pitch or green coke particles having an average diameter of 30-200 .mu.m from finely divided petroleum or coal pitch having a softening point of 60.degree.-220.degree. C. and a fixed carbon content of 40-75 wt %. In the first step the material pitch is fluidized in the stream of a gas substantially inert to the pitch at a temperature of 100.degree.-800.degree. C., the mixed stream is rapidly cooled to 30.degree.-400.degree. C., and microspherical pitch particles are recovered with or without separate recovery of an oily product. In the second step the pitch spheres are further subjected to thermal cracking and polycondensation by use of a fluidized bed at a temperature of 350.degree.-520.degree. C. for a retention time of 1 min. to 3 hours, and microspherical green coke particles and a light cracked oil are recovered. In both steps a pressure between the ordinary level and 10 kg/cm.sup.2 is used.

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