NOVELTY - Solid catalyst component comprises a zeolite with a modifier and at least one Group VIII metal alloyed with at least one transition metal.    USE - The solid catalyst component is useful for converting a mixed waste plastic into a low molecular weight organic compound (claimed) which is useful as chemical intermediates, solvents, or fuels.    ADVANTAGE - The method minimizes tedious and expensive separation steps prior to introduction of the raw material feed into the reactor.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for:    (1) a method (I) of preparing a solid catalyst component, comprising: dissolving Group VIII metal precursor and the transition metal precursor, respectively into water to form solutions, and mixing the obtained solutions with each other to obtain a metal salt solution; mixing a modified zeolite with a solvent to obtain a zeolite slurry; contacting the metal salt solution with the zeolite slurry to form a mixture; adjusting a pH of the mixture to obtain a product; heating the product to form catalyst particles; isolating and washing the catalyst particles; and heat-treating the catalyst particles to form the solid catalyst component; and    (2) converting a mixed waste plastic into a low molecular weight organic compound, comprising: (a1) feeding particles of the mixed waste plastic and the solid catalyst component comprising a modified zeolite and alloyed metals into a fluidized bed reactor; (b1) heating the particles of the mixed waste plastic and the solid catalyst component at a temperature effective to produce a coarse filler, inorganic components, coke, volatile organic component, and spent catalyst component; (c1) withdrawing a first stream comprising the volatile organic component from the reactor; (d1) withdrawing a second stream comprising the spent catalyst component, coke, coarse filler and the inorganic components from the reactor; (e1) heating the second stream in a regenerator in the presence of oxygen, air or blend of oxygen with an inert gas at a temperature effective to convert the coke to a mixture of carbon monoxide, carbon dioxide and water, and to regenerate the solid catalyst component; and (f1) separating the regenerated solid catalyst component from the coarse filler and the inorganic components.