Modified zeolite catalyst useful for the conversion of paraffins, olefins and aromatics in a mixed feedstock into isoparaffins and a process thereof

A process for the conversion of paraffins, olefins and aromatics in a mixed feedstock into isoparaffins, comprising feeding FCC gasoline having paraffin, iso-paraffin, olefin, naphthenes and aromatics into the fixed bed down flow reactor containing a modified mordenite catalyst comprising noble metals in the range of 0.1 to 1 wt %, under hydrogen flow, at a temperature in the range of 225-375° C., at a pressure in the range of 5-35 bar, at a space velocity of 1-6 h−1, followed by cooling of the gaseous product at the reactor tail to obtain the desired product, wherein the mordenite zeolite based catalyst comprises:

• Zeolite:
• in the range of 59-60 wt %;
• Pseudo extrude:
• in the range of 39-40 wt %;
• Pt:
• in the range of 0.1-1.0 wt %;
• and
• Pd:
• in the range of 0-1.0 wt %,
• and said catalyst has the following characteristics:
• Si/Al:
• in the range of 16-80;
• BET surface area (m2/g):
• n the range of 200-350;
• Micropore area (m2/g):
• in the range of 155-250;
• External pore area (m2/g):
• in the range of 90-135;
• Pore volume (cc/g):
• in the range of 0.30-0.50
• Acidity (m·mol/g·catal):
• in the range of 1.40-1.60;
• Strong (>120 kJ/mol):
• in the range of 0.40-0.60;
• Medium (120-80 kJ/mol):
• in the range of 0.45-0.50;
• Weak (<80 kJ/mol):
• in the range of 0.40-0.60;
• and
• Pt dispersion (%):
• in the range of 60-80.