非热等离子体辅助催化裂解反应器设计与工作性能研究

Design and Performance Research of the NTP Assisted Catalytic Cracking Reactor

针对生物油催化裂解提质技术领域中存在的催化剂易结焦失活、精制油收率低的技术问题,提出了低温等离子体协同分子筛催化剂在线催化裂解提质生物油的技术方案,设计了基于介质阻挡放电工作原理的低温等离子体辅助催化裂解反应器,通过实验研究了催化剂加载、催化剂硅铝比、体系压力、工作电压及频率等参数对反应器放电功率、催化剂温度等工作性能的影响规律。结果表明,加载催化剂后反应器起始放电电压显著降低;催化剂硅铝比对反应器放电功率影响较小,体系压力和工作电压是影响反应器放电功率的主要因素;体系压力的降低,以及催化剂硅铝比和工作电压的增加均有助于催化剂温度的提高。

With the aim to solve the problems of coking deactivation of catalyst and low yield of refined oil catalytic cracking upgrading process of bio-oil, an on-line catalytic cracking upgrading scheme assisted by NTP combining with zeolite catalyst was proposed. An NTP assisted catalytic cracking reactor was designed according to the principle of dielectric barrier discharge, and the effects of catalyst loading, molar ratio of SiO2 to Al2O3 in catalyst, system pressure, operating voltage and frequency on the reactor＇s performance were studied experimentally. Results reveal that the incipient discharge voltage is significantly decreased after catalyst addition, the catalyst＇s molar ratio of SiO2 to Al2O3 has small impact on the discharge power, the system pressure and operating voltage are the main factors influencing the discharge power, and the temperature of catalyst is dramatically affected by the molar ratio of SiOz to Al2O3, system pressure and operating voltage.