Apparatus for direct liquefaction

Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Including heat exchanger for reaction chamber or reactants...

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422190, 422196, 422214, B01J 820, B01J 1000, G10G 108

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active

042909996

ABSTRACT:
In a process for directly liquefying coal, a paste consisting of finely divided coal, catalyst and heavy oil can be treated for thermal cracking and hydrocracking with a high liquid/space ratio and short residence time in a preheating section and a reaction section. An apparatus threfor comprises a plural number of pipe units having apertures for hydrogen injection and apertures for the paste of a low concentration or heavy oil injection and a gas-liquid separator for removing H.sub.2 O, methane, etc., the pipe units being formed in such a manner that a Reynolds number of 3.times.10.sup.3 or greater and an axial dispersion coefficient of 0.05 or smaller are achieved for the fluid flow therein.

REFERENCES:
patent: 2913388 (1959-11-01), Howell et al.
patent: 3644192 (1972-02-01), Li et al.
patent: 4189371 (1980-02-01), Maa et al.
"Coal Hydrogenation Process", Callaham, Chem. Eng., 6-1952, pp. 152-157.

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