石油与天然气化工2026，Vol.55Issue(2)：48-56,9.DOI:10.3969/j.issn.1007-3426.2026.02.006
Ni/Beta双位点协同催化聚烯烃精准裂解
Synergistic bifuctional catalysis on Ni/Beta for precise catalytic cracking of polyolefins
摘要
Abstract
Objective Highly active,low-cost,and resource-abundant non-precious metal catalysts have been developed for the efficient recovery of low-density polyethylene(LDPE).Method The study examined the effects of nickel species loading,types of zeolites and their silicon-to-aluminum ratios,reaction temperature,initial hydrogen pressure,and reaction time on the hydrocracking performance of LDPE.Result When Ni/Beta was used as the catalyst for the LDPE hydrocracking under the conditions of 250 ℃,initial hydrogen pressure of 3 MPa,and reaction time of 1 hour,the conversion rate of LDPE reached up to 96.8 wt％,and the liquid alkanes yield achieved 72.0 wt％.Conclusion The Ni/Beta catalyst has demonstrated efficient degradation of polyolefins under mild conditions,confirming that the use of low-cost nickel species in conjunction with acidic zeolites can effectively facilitate the recycling of polyolefin waste.This approach shows promising industrial prospects.关键词
聚烯烃/Ni/Beta/加氢裂化/沸石Key words
polyolefin/Ni/Beta/hydrocracking/zeolite引用本文复制引用
王成国,王帅,王卫晨,丛培澳,高道伟..Ni/Beta双位点协同催化聚烯烃精准裂解[J].石油与天然气化工,2026,55(2):48-56,9.基金项目
国家自然科学基金"金属位与酸性位的交互性对聚乙烯加氢裂化/异构化反应路径的影响机制"(22278174) （22278174）
