基于FCC卸出剂的废轮胎催化裂解终值产物定向调控机理研究

项目围绕废轮胎催化裂解制备高品质液体燃料过程中催化剂成本高、无法回用等难题，首次提出了FCC卸出剂用于废轮胎催化裂解新方法。并针对废轮胎、FCC卸出剂协同再利用过程中，产物可控性差、附加值低及目标产物收率低等问题，拟通过以下途径：①构筑卸出剂活化体系调控卸出剂结构及酸性分布，为废轮胎裂解提供合适的催化剂结构和卸出剂活化工艺；②寻求最佳催化裂解氛围，阻断中间产物的二次反应过程，再结合适宜的催化剂结构和催化裂解工艺调控目标产物生成过程；来提高目标产物的收率，并阐释催化裂解过程的科学现象及内在作用机制，解决废轮胎裂解过程中卸出剂构效关系及裂解产物分布规律两大关键科学问题，揭示反应机理与产物定向调控关系的本质，有效促进废轮胎催化裂解产物的定向转化，为开发低成本、高收益的废轮胎催化裂解产物调控技术提供理论支撑，实现废轮胎与卸出剂两种废弃物协同高值化再利用，达到社会效益与经济效益的双赢。

Focused on the problems of high cost and reusability of catalyst in the process of producing high quality fuel from waste tire pyrolysis, A innovative method of catalytic pyrolysis of waste tire with spent FCC Catalysts was proposed in this research for the first time. In the research, some problems such as poor controllability, low added value and low yield of target product, were found. Two means to resolve the key scientific problems of structure-activity relationship of spent FCC catalytic pyrolysis of waste tire and product distribution were also proposed. The means are as following. .(1) Construct the activation system of spent FCC catalysts to control the structure and acid distribution, to provide the optimum catalyst structure and activation process..(2) Research and choose the suitable pyrolysis environment to prevent the secondary reaction process of intermediate products. Then, combine the appropriate catalyst structure and catalytic pyrolysis process to control the target product formation path..The research interprets the scientific phenomenon and internal mechanism of catalytic pyrolysis process. This reveals the nature of the relationship between reaction mechanism and product directional control, effectively promotes the directional conversion of waste tire catalytic pyrolysis products, and provides theoretical support for the low-cost technology to improve the product valorization of waste tire pyrolysis.This research realizes the collaborative high value reuse of waste tires and spent FCC catalysts, and achieves a win-win situation of social and economic benefits.