CPC C10G 1/10 (2013.01) [C10G 1/002 (2013.01); C10G 11/05 (2013.01); C10G 2300/1003 (2013.01)] | 11 Claims |
1. A method of producing naphtha from mixed plastic, comprising the following steps:
(a) subjecting the mixed plastic to thermal pyrolysis and thereby producing a primary pyrolysis oil;
(b) separating the primary pyrolysis oil produced in the thermal pyrolysis into first oil having a boiling point of lower than 150° C. and comprising naphtha, and second oil having a boiling point higher than that of the first oil by fractional distillation;
(c) subjecting only the second oil to catalytic pyrolysis and thereby producing a catalytic pyrolysis product; and
(d) separating third oil having a boiling point of lower than 150° C. and comprising naphtha by subjecting the catalytic pyrolysis product produced in the step (c) to fractional distillation and mixing the separated third oil with the first oil to produce final oil comprising naphtha,
wherein the first oil and the second oil satisfy the following Relational Expression 1:
1<A1/A2<5 Relational Expression 11
wherein A1 is a content (wt %) of Cl in the first oil and A2 is a content (wt %) of Cl in the second oil.
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