中南民族大学学报（自然科学版）2026，Vol.45Issue(6)：721-729,9.DOI:10.20056/j.cnki.ZNMDZK.20260601
Pt/Al2O3-HY双功能催化体系用于废塑料加氢裂解制液体燃料
Pt/Al2O3-HY bifunctional catalytic system for hydrocracking of waste plastics to liqiud fuel
摘要
Abstract
With the extensive application of plastics,the efficient utilization of waste polyethylene has emerged as a pivotal strategy to address white pollution and advance carbon recycling.Hydrocracking represents a promising approach for transforming polyethylene into high-value fuels and chemicals under relatively mild conditions.Nevertheless,the development of bifunctional catalysts featuring well-balanced metal and acid functionalities remains a critical challenge in enhancing the yield of low-carbon hydrocarbons.Herein,a series of Pt/γ-Al2O3 catalysts were synthesized through incipient wetness impregnation and integrated with HY(30)zeolite to establish bifunctional metal-acid catalytic systems.The impacts of Pt catalyst variety,zeolite type,catalyst mass ratio,and pretreatment methodology on polyethylene hydrocracking were systematically examined.The findings demonstrated that the catalytic system,comprising 0.5%Pt/γ-Al2O3 fibrous catalyst and HY(30)zeolite at a mass ratio of 1∶3,delivered optimal performance,yielding a total low-carbon hydrocarbon(C1-C16)output of 71.0%,as a result of the synergistic interaction between Pt hydrogenation sites and the zeolite's acidic cracking sites.关键词
聚乙烯/加氢裂解/Pt/γ-Al2O3催化剂/HY分子筛Key words
polyethylene/hydrocracking/Pt/γ-Al2O3 catalysts/HY zeolite分类
资源环境引用本文复制引用
余静雅,张梅琦,张煜华,李金林,王立..Pt/Al2O3-HY双功能催化体系用于废塑料加氢裂解制液体燃料[J].中南民族大学学报（自然科学版）,2026,45(6):721-729,9.基金项目
国家重点研发计划资助项目(2022YFB4101201) （2022YFB4101201）
国家自然科学基金资助项目(22372199) （22372199）
国家民委中青年英才计划资助项目(MZR22001) （MZR22001）
