Although perovskites are extensively investigated in many areas, studies using perovskites as catalysts for biomass pyrolysis are still quite limited. While various transition metals can be inserted into perovskites to form different perovskites, it is critical to investigate the effects of various transition metallic substituents on the characterization of catalysts. This work involves the evaluation of nine perovskite-type catalysts in terms of their effectiveness and suitability for pyrolysis of date stone biomass. LaCoO₃, LaMnO₃ and LaNiO₃ perovskite catalysts were prepared by sol-gel, hydrothermal and microwave methods and characterized by X-ray powder diffraction, scanning electron microscopy and surface area measurement. Pyrolysis of date stones has been performed in tubular reactor at 520 °C with 100 °C/min and a nitrogen gas flow rate of 100 cm³/min. The influences of catalyst preparation method on catalytic cracking of pyrolysis vapours in terms of bio-oil yields were examined. Additionally, the effect of B metal in ABO₃ perovskite structure on catalyst character and pyrolysis yields were examined in detail. According to results, highest bio-oil yield was achieved as 23.4% with LaMnO₃ catalyst synthesized with sol-gel method. All perovskite-type catalysts have reduced the bio-oil yield and improved the water and gaseous yield as expected. This study paves the way for developing more challenging perovskite catalysts for the renewable energy sources.

尽管钙钛矿在许多领域进行了广泛的研究，但是使用钙钛矿作为生物质热解催化剂的研究仍然非常有限。尽管可以将各种过渡金属插入钙钛矿中以形成不同的钙钛矿，但研究各种过渡金属取代基对催化剂表征的影响至关重要。这项工作涉及评估九种钙钛矿型催化剂的有效性和对枣石生物质进行热解的适用性。LaCoO ₃，LaMnO ₃和LaNiO ₃钙钛矿催化剂通过溶胶-凝胶，水热和微波方法制备，并通过X射线粉末衍射，扫描电子显微镜和表面积测量来表征。大枣石的热解已经在520℃的管式反应器中以100℃/ min和100cm ³ / min的氮气流速进行。考察了催化剂的制备方法对生物油得率对热解蒸气催化裂化的影响。另外，详细研究了ABO ₃钙钛矿结构中B金属对催化剂特性和热解产率的影响。根据结果​​，LaMnO _3的最高生物油产率为23.4％溶胶-凝胶法合成的催化剂。所有钙钛矿型催化剂均降低了生物油产量，并改善了水和气态产量。这项研究为开发可再生能源更具挑战性的钙钛矿催化剂铺平了道路。