碳钛复合材料负载钴基费-托合成 催化剂的结构和催化性能

采用水热法合成碳钛复合材料，以碳钛复合材料为载体制备了钴基费-托合成催化剂.采用氮气物理吸附-脱附、原位X射线衍射(XRD)、透射电子显微镜(TEM)、氢气程序升温还原(H₂-TPR)、X射线光电子能谱(XPS)等对催化剂进行了表征，在固定床反应器上对催化剂的费-托合成催化性能进行了评价.结果表明：利用碳改性二氧化钛可明显影响催化剂的催化活性，由于碳的引入导致催化剂更易于还原，催化剂的分散较好，具有更高的费-托合成活性和重质烃选择性(C₅⁺).

Carbon-Titania-Composite Supported Cobalt Catalyst for Application in Fischer-Tropsch Synthesis

Carbon-titania composite material was synthesized through a hydrothermal method and cobalt was loaded by incipient wetness impregnation. The catalysts were characterized by nitrogen adsorption-desorption, XRD, TEM, H₂-TPR and XPS. The catalytic activity for FTS was studied in a fixed bed reactor. The results indicated that the incorporation of carbon impacted catalytic performance profoundly. The catalyst with the carbon-titania composite material was easily reducible and improved the dispersion of cobalt, resulting in higher activity and higher selectivity for heavy hydrocarbons (C₅⁺ ).