Process for producing aromatic hydrocarbon compounds and liquefied petroleum gas from hydrocarbon feedstock

A process for producing aromatic hydrocarbon compounds and liquefied petroleum gas from a hydrocarbon feedstock, comprising the following steps of:

• a) introducing hydrogen and a hydrocarbon feedstock with boiling points of 30-250° C., to at least one reaction zone;
• b) hydrodealkylating and/or transalkylating aromatic hydrocarbon components in the feedstock, while hydrocracking non-aromatic hydrocarbon components in the feedstock in the presence of a catalyst within the reaction zone;
• c) introducing products discharged from the reaction zone to a gas-liquid separator to provide a first overhead stream comprising hydrogen, methane, ethane and LPG components, and a first bottom stream comprising aromatic hydrocarbon components and a small amount of hydrogen and non-aromatic hydrocarbon components;
• d) withdrawing LPG from said first overhead fraction;
• e) introducing said first bottom stream to a distillation tower to provide a second overhead stream comprising the remaining hydrogen and non-aromatic hydrocarbon components, and a second bottom stream comprising aromatic hydrocarbon components;
• and
• f) withdrawing LPG from said second overhead stream, and aromatic hydrocarbon components from said second bottom stream;
• wherein said catalyst comprises platinum/tin or platinum/lead and a mixture support consisting of 10-95 wt % of zeolite having a molar ratio of silica/alumina of 200 or less and 5-90 wt % of inorganic binder, said zeolite being selected from the group consisting of mordenite, beta type zeolite, ZSM-5 type zeolite and a mixture thereof, in which said platinum is present at an amount of 0.01-0.5 parts by weight, and said tin is present at an amount of 0.01-5.0 parts by weight or said lead is present at an amount of 0.02-5.0 parts, on the basis of 100 parts by weight of said mixture support.