低密度聚乙烯
催化裂化
材料科学
催化作用
开裂
化学工程
聚乙烯
柴油
复合材料
化学
有机化学
工程类
作者
Shanshan Tang,Yan He,Xingfa Deng,Xuemin Cui
出处
期刊:Molecules
[MDPI AG]
日期:2022-04-15
卷期号:27 (8): 2557-2557
被引量:6
标识
DOI:10.3390/molecules27082557
摘要
Metakaolin-based geopolymer microspheres (MGM) with hierarchical pore structures were prepared by suspension dispersion method in dimethicone at 80 °C. The hydrothermal modification of MGM was carried out at a lower temperature of 80 °C, and a NaA molecular sieve converted from metakaolin-based geopolymer (NMGM) with good crystal structure was prepared and applied in thermal catalytic cracking of low-density polyethylene (LDPE) reaction. The one-pot two-stage thermal catalytic cracking of LDPE was carried out in a 100 mL micro-autoclave under normal pressure. In this work, the optimal proportions and optimal reaction conditions of catalysts for NMGM thermal catalytic cracking of LDPE waste to fuel oil were investigated. The NMGM catalyst showed high selectivity to the liquid product of thermal catalytic cracking of waste LDPE. Under the reaction conditions of reaction time of 1 h and reaction temperature of 400 °C, the liquid-phase yield of thermal catalytic cracking of LDPE reached a high of 88.45%, of which the content of gasoline components was 10.14% and the content of diesel components was 80.97%.
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