【摘要】 针对生物油中酸含量高、易腐蚀反应器、加氢反应催化剂易中毒等问题,首先采用碳酸盐（Na₂CO₃、CaCO₃）中和的方法对生物油进行预处理,研究Raney-Ni催化剂上预处理后的生物油催化加氢提质特性。采用N₂吸附脱附、XRD等技术对自制Raney-Ni进行表征。预处理生物油催化加氢结果表明:生物油酸含量明显降低,Na₂CO₃中和后的生物油酸含量由原油的42.19%降低至6.86%;经加氢反应后,饱和醇选择性可达90.02%。但经碳酸盐中和的生物油催化加氢产物稳定性差,金属离子的残留导致改质后生物油灰分增大。更多还原

【Abstract】 High acid content in bio-oil is easy to corrode the reactor,and the catalyst is easy to be poisoned inhydrogenation process. The bio- oil was pretreated by neutralization methods using Na₂CO₃ or CaCO₃. After Raney-Nicatalyst pretreatment,the performance improvement of bio-oil through catalytic hydrogenation was investigated. TheReney-Ni catalyst was characterized by N₂ adsorption-desorption,XRD and BET techniques. The results show that afterneutralization and catalytic hydrogenation,the acid content of bio-oil is decreased from 42.19% to 6.86%; and saturatedalcohol selectivity reaches up to 90.02% after catalytic hydrogenation. However,after Na₂CO₃ neutralization and catalytichydrogenation,the bio-oil product is unstable. Remained metal ions lead to increasing ash content in bio-oil.更多还原