Activated carbon carriers with various pore size distributions were prepared by using pulverized coal as carbon source

dibasic sodium phosphate and potassium phosphate monobasic as adjuvant. The activated carbon carrier and catalyst were characterized by nitrogen adsorption and desorption

methylene blue adsorption

X-ray diffraction (XRD) and scanning electron microscopy (SEM). The effect of pore size distribution on catalyst performance was studied in an isothermal fixed-bed reactor

which simulated industry-scale single tubular conversion unit. The results showed that activated carbon of different specific surface area and pore size distribution can be prepared by adjusting amount of dibasic sodium phosphate

potassium phosphate monobasic and steam. Activated carbon with mesoporosity was obtained to 81%. Activated carbon carrier with high mesopores is beneficial to dispersion of active center

and the corresponding catalyst has excellent stabilized activity and long lifetime at high air velocity.