F-T合成沉淀铁系催化剂的原位再生(英文)

Ｆ－Ｔ合成沉淀铁系催化剂在３ ０００小时工业单管模试反应器中进行了三次原位再生试验。用自产的Ｃ６—Ｃ１１馏分油在接近其临界点的条件下对催化剂进行处理，然后用Ｈ２或合成气还原。经过上述再生处理，催化剂床层压降从１．０ ＭＰａ降至０．１ＭＰａ，催化剂反应性能同时得到恢复。还讨论了导致催化剂失活和催化剂床层压降增加的原因。

IN-SITU REGENERATION OF AN Fe-BASED CATALYST FOR F-T SYNTHESIS

An Fe-based catalyst for F-T synthesis was regenerated in-situ three times in a single tube reactor during a 3 000 h scale-up test, with C6~C11 distillate produced from the F-T reaction as the washing solvent, and H2 or syngas as the reducing gas. It can be seen that after regeneration, the pressure drop of the catalyst bed was decreased from 1.0 MPa to 0.1 MPa, the reactivity of the catalyst was recovered. The reasons for the catalyst deactivation and the increase of pressure drop of catalyst bed were discussed.