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OALib Journal期刊
ISSN: 2333-9721
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负载的ni催化剂上植物油脂加氢脱氧制备第二代生物柴油
, PP. 1067-1073
Keywords: 植物油脂,棕榈酸甲酯,加氢脱氧,ni基催化剂,第二代生物柴油
Abstract:
？在半连续反应器中,以棕榈酸甲酯为植物油脂模型化合物,进行了加氢脱氧制取高品质生物柴油燃料的研究。采用浸渍法制备了hy、sio2、γ-al2o3及sapo-11四种载体负载的ni催化剂,采用xrd、nh3-tpd、h2-tpr、bet、sem等技术进行催化剂表征。结果表明,ni/sapo-11催化剂由于sapo-11表面呈现的弱酸和中强酸性质,在保持较高的加氢脱氧反应性的同时,抑制了裂解反应的发生,具有较好的催化性能。进一步对sapo-11上不同的ni负载量、反应温度、反应压力等进行了研究,发现当ni负载量为7%,反应温度为220℃,压力为2mpa时,催化剂具有较高的催化性能,棕榈酸甲酯的转化率达到了99.8%,c9~16烷烃的总选择性为92.71%。
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