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通过对CH4低温活化与CO2加氢研究成果的分析,提出了在CO2加氢催化剂上CH4表面吸附物种与CO2低温转化直接合成含氧化合物的可行性,并进行了热力学分析和实验验证. 实验结果表明,CH4表面吸附物种与CO2在Cu-Co基催化剂表面相互作用能生成醇、醛、酸、酮和两种环戊烷衍生物Ⅰ和Ⅱ,产物分布随进料方式而有很大的变化,但无论哪种方式都有乙酸和环戊烷衍生物Ⅰ生成. 就乙酸收率而言,最佳反应条件为T=523 K,n(Cu)/n(Co)=5. FT-IR测试结果表明,反应后催化剂表面有CH x和CHxO生成.

参考文献

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[11] James J;Makarand R .[P].WO 99/59?952,1999.
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[15] Freund H-J;Wambach J .[P].Seiferth O.DE 4?428?566,1995.
[16] Huang W;Xie K Ch;Bai Y B .[J].Journal of Natural Gas Chemistry,1999,8(03):196.
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[18] Koerts T;Deelen M J A G;van Santen R A .[J].Journal of Catalysis,1992,138(01):101.
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