采用固定床连续流动反应器对γ-Mo2N催化剂上的乙炔加氢反应进行了研究.在150 ℃的反应温度下,乙炔的转化率为95%,乙烯的选择性达到80%,乙烷和丁烯的选择性分别为4%和10%.反应温度和空速的变化对反应产物的选择性没有明显的影响.在同样的反应条件下,钯催化剂上乙炔加氢反应的主要产物是乙烷,产物组成随反应温度和空速的变化而变化.对γ-Mo2N上的乙炔选择加氢生成乙烯的机制进行了解释,认为γ-Mo2N表面上滞留的强吸附的碳氢物种可能有利于乙炔高选择性地生成乙烯.
参考文献
[1] | Chu Yongjun;Wei Zhaobin;Yang Shuwu et al.[J].Applied Catalysis A:General,1999,176:17. |
[2] | Kim D-W;Lee D-K;Ihm S-K .[J].Catalysis Letters,1997,43:91. |
[3] | Volpe L;Boudart M .[J].Journal of Physical Chemistry,1986,90(20):4874. |
[4] | Ranhotra G S;Bell A T;Reimer J A .[J].Journal of Catalysis,1987,108:40. |
[5] | Saito M;Anderson R B .[J].Journal of Catalysis,1980,63:438. |
[6] | Volpe L;Boudart M .[J].Journal of Solid State Chemistry,1985,59:332. |
[7] | Markel E J;Van Zee J W .[J].Journal of Catalysis,1990,126:643. |
[8] | Bond G C;Webb G;Wells P B .[J].Journal of Catalysis,1968,12(02):157. |
[9] | Bond G C;Wells P B .[J].ADVANCES IN CATALYSIS,1964,15:91. |
[10] | Bond G C;Webb G;Wells P B et al.[J].Journal of Catalysis,1962,1:74. |
[11] | Beebe T P Jr;Yates J T Jr .[J].Journal of the American Chemical Society,1986,108(04):663. |
[12] | Cremer P S;Somorjai G A .[J].Journal of the Chemical Society,Faraday Transactions,1995,91(20):3671. |
[13] | Thomson S J;Webb G.[J].Journal of the Chemical Society,Chemical Communications,1976(13):526. |
[14] | Al-Ammar A S;Webb G .[J].Journal of the Chemical Society,Faraday Transactions 1,1978,74(01):195. |
[15] | Hansen R S;Arthur J R Jr;Mimeault V J et al.[J].Journal of Physical Chemistry,1966,70(09):2787. |
[16] | Gardner N C;Hansen R S .[J].Journal of Physical Chemistry,1970,74(17):3298. |
[17] | Sarkany A .[J].Applied Catalysis A:General,1997,149:207. |
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