硫化氢对渣油加氢脱金属的影响.pdfVIP

( ) 2010 6 ACT A PET OLEI SINICA (PET OLEU M P OCESSING SECTION) 26 3 :2010) 刘勇军, 刘晨光 ( , 266555) : ( A ) , ( LCO) , H S 2 H S Al O NiMoS/ Al O , H S 2 2 3 2 3 2 3, : ( 1) ; ( 2) , , ; (3) , ; , , , : ; ; ; ; ; : T E626.25 : A doi: 10.3969/ j. issn. 2010.03.013 EFFECTS OF HYDROGEN SULPHIDE ON RESIDUE HYDRODEMETALLIZATION LIU Yongjun, LIU Chenguang ( S t ate K ey L abor atory of H eav y Oil Pr oce ssing , Colleg e of Chemist ry and Che mical Eng ine ering , China Univ ersity of P et role um, Qing da o 266555, China Abstract: With Kuwait atmosphere residue as theraw material and LCO from FCC of residue as the high aromatic additive, the effects of H2 S and the combination of H2 S and high aromatic additiveon residue hydrodemetallization( HDM ) over Al2O3 or NiMoS/ Al2O3 catalyst, were investigated. The results indicated that H2 S obviously improved the performance of HDM in three ways, namely: ( 1) donating hydrogen; (2) coordinating with metal atoms in metal porphyrins, resulting in easy pyrolysis of metal nitrogen bonds and metal porphyrin molecules unstable; ( 3) enhancing the reversible conversion between sulfier vacancy sites and saturated sites on the surface 2 3 2 of NiMoS/ Al O catalyst. The improvement of H S for HDM was evident at low removal rate of metals and limited at high removal rate of metals. Ke words: hydrogen sulfide; residue; hydrodemetallization; additive; nickel; vanad