METHOD FOR PRODUCING VALUABLE AROMATIC FROM HYDROCARBONS

摘要

The present invention relates to a manufacturing method of a high-added value aromatic product, including a hydrotreated step of hydro-treating a hydrocarbon oil fraction under a hydrotreated catalyst having transition metal phosphide, partially saturating rings on the aromatic carbon compounds with at least two benzene rings and removing sulfur, nitrogen or oxygen compounds; and a hydrotreated decomposition step of hydro-treating the product of the hydrotreated step under the hydro-treated catalyst having the transition metal phosphide and accordingly obtaining toluene or xylene wherein sulfur, nitrogen and oxygen compounds are well known for decreasing yield of manufacturing the aromatic products and can be efficiently removed in the present invention, thereby obtaining high concentrated aromatic products while substituting for an existing material, naphtha, and leading to high-added value oil fraction derived from coal such as coal tar.