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进行了Ｃｏ／ＳｉＯ２催化剂在超临界介质存在下的ＦＴ合成反应，考察了反应介质（气相，超临界相）对ＣＯ转化率及烃收率的影响，重点研究了α烯烃（１Ｃ＝１４）加入对催化剂反应性能及产物分布的影响。结果表明，引入的超临界介质可以将反应热及重质产物从催化床层及时移去，改善了过程的传热及传质效率，使ＣＯ的转化率和烃收率显著提高；反应体系中加入的α烯烃，借助于超临界介质的作用可以吸附到催化剂表面，并发生链增长反应，从而使Ｃ＋１４的烃的收率显著提高，而Ｃ１～Ｃ１３的选择性相应降低，产物分布曲线变的平坦。蜡的分析结果也证实了上述的结论。
The FT synthesis reaction of Co / SiO2 catalyst in the presence of supercritical media was investigated. The effects of reaction medium (gas phase and supercritical phase) on the conversion of CO and the yield of hydrocarbon were investigated. The effects of the addition of α-olefin (1C = 14) On the catalytic performance and product distribution. The results show that the introduction of supercritical medium can remove the reaction heat and heavy products from the catalyst bed in time and improve the heat and mass transfer efficiency of the process. The conversion of CO and the yield of hydrocarbon are significantly increased. In the reaction system Addition of α-olefin can be adsorbed on the catalyst surface by the action of supercritical medium, and the chain growth reaction takes place. As a result, the yield of C + 14 hydrocarbons increases markedly while the selectivity of C1-C13 decreases correspondingly. The product distribution curve changes flat. Wax analysis also confirmed the above conclusion.