【摘要】 采用热重、红外、核磁等分析手段,对生物质油催化裂解精制中使用的催化剂HZSM-5上的焦炭前身物进行了表征。沉积在催化剂表面上的焦炭前身物主要是短链饱和烃类化合物,沸点在200°C以下;催化剂内部的结焦前身物主要为芳香族碳氢化合物,这些化合物的沸程为350～650°C。更多还原

【Abstract】 The precursor of coke on the catalyst HZSM5 used in biooil catalytic cracking upgrading was analyzed by means of TGA, FTIR and CNMR. Precursors of coke deposited in the pore of the molecular sieve were mainly aromatic hydrocarbon with the boiling point ranging from 350 °C to 650 °C.Those on the outer surface of the pallet precursor were identified as saturated aliphatic hydrocarbons with the boiling point below 200 °C.更多还原