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(Na_2CO_3、CaCO_3)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N_2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,Na_2CO_3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。
High acid content in bio-oil is easy to corrode the reactor, and the catalyst is easy to be poisoned in hydrogenation process. The bio-oil was pretreated by neutralization methods using Na2CO3 or CaCO3. After Raney-Ni catalyst pretreatment, the performance improvement of bio-oil through catalytic hydrogenation was investigated. The Reney-Ni catalyst was characterized by N2 adsorption-desorption, XRD and BET techniques. The results show that after neutralization and catalytic hydrogenation, the acid content of bio-oil is decreased from 42.19% to 6.86%; and alcohol selectivity reaches up to 90.02% after catalytic hydrogenation. However, after Na2C03 neutralization and hydrogenation, the bio-oil product is unstable. Remained metal ions lead to increasing ash content in bio-oil. saturated catalytic
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2015年第10期2530-2535,共6页
Acta Energiae Solaris Sinica
基金
国家自然科学基金(51036006
51106108)
中国科学院重点部署资助项目(KGZD-EW-304-3)
中国科学院广州能源研究所所长创新基金(y307r91001)
湖南省研究生科研创新项目(CX2013B377)
