Abstract: The technology consisting of low-temperature diesel absorption-total hydrocarbon homogenization–catalytic oxidation was determined to treat the loading exhaust gas in a petrochemical enterprise of Shandong base on the analysis of control technologies of loading exhaust gas. The results indicated that at the operating conditions of the absorption oil flow rate of 15~20 m3/h，the absorption temperature 8~15 ℃，the absorption pressure 0.2 MPa， the catalytic oxidation temperature 250~350 ℃，and gas space velocity of catalytic oxidation 5 000~20 000 h-1, the concentration of non methane total hydrocarbon in the purified gas was less than 20 mg/m3，the emission concentration of benzene, toluene and xylene was lower than the limit of detection，and the purified gas meets the national and local discharge standards. The period of investment recovery was 5 years. The combined technology has a economic benefits and obvious environmental friendly.

Key words: loading exhaust gas, oil and gas recovery, catalytic oxidation, deep purification