In order to investigate the enhancement of Zr in FTS performance, a series of Zr-modified 20 wt% Co/Al₂O₃ catalysts has been prepared by regulating the Zr and Co impregnation order and Zr amount and then the catalytic performance were evaluated in a fixed reactor. The Zr addition leads to a significant increase in activity, olefin/paraffin ratio for C₃ and C₄ at a similar CO conversion, and selectivity to C₅⁺ compared with the Co/Al₂O₃ catalysts. The co-impregnation of Zr and Co shows the most attractive catalytic performance. This can be attributed to the higher reducibility of the catalyst as well as the formation of Co–Zr interface. The introduction of Zr can enhance the interaction between C∗ and cobalt active sites and weaken the CO bond, making CO easier to be dissociated and the selectivity of C₅⁺ is improved.

为了研究Zr在FTS性能中的提高，通过调节Zr和Co的浸渍顺序和Zr的量，制备了一系列Zr改性的20 wt％Co / Al ₂ O ₃催化剂，然后评价了其催化性能。固定反应堆。Zr的添加显着提高了活性，与CO / Al ₂ O ₃相比，在类似的CO转化率下C ₃和C _4的烯烃/石蜡比率以及对C ₅ ^+的选择性催化剂。Zr和Co的共浸渍显示出最有吸引力的催化性能。这可以归因于催化剂的更高还原性以及Co-Zr界面的形成。Zr的引入可以增强C ∗和钴活性位之间的相互作用，并弱化C O键，使CO易于解离，并提高C ₅ ⁺的选择性。