Influence of ZSM-5 zeolite on the pyrolytic intermediates from the co-pyrolysis of pubescens and LDPE

被引：41
|
作者：
Liu, Wenwu [1 ]
Hu, Changwei [1 ]
Yang, Yu [1 ]
Tong, Dongmei [1 ]
Li, Guiying [1 ]
Zhu, Liangfang [1 ]
机构：
[1] Sichuan Univ, Coll Chem, Minist Educ, Key Lab Green Chem & Technol, Chengdu 610064, Peoples R China
来源：
ENERGY CONVERSION AND MANAGEMENT | 2010年 / 51卷 / 05期
基金：
高等学校博士学科点专项科研基金;
关键词：
Intermediates; Interactions; Aromatization; Alkanisation; SYNTHETIC-POLYMERS MIXTURES; CATALYTIC PYROLYSIS; WOOD BIOMASS; BED REACTOR; BIO-OIL; HZSM-5; ZEOLITE; CRACKING; POLYETHYLENE; DEGRADATION; CONVERSION;
D O I：
10.1016/j.enconman.2009.12.005
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The catalytic reforming of the pyrolytic intermediates from the co-pyrolysis of pubescens and LDPE over the parent and desilicated zeolite ZSM-5 (DeZSM-5) was investigated. The results showed that the parent HZSM-5 exhibited high aromatization activity in the co-pyrolysis, whereas DeZSM-5 exhibited high alkanisation activity. On the other hand, the total relative content of phenolic compounds in aqua obtained by co-pyrolysis catalyzed by both parent HZSM-5 and DeZSM-5 was rather high (60-65%) compared to the thermal co-pyrolysis (26.94%). From the analysis of NH3-TPD for ZSM-5, it might be proposed that the aromatization was favored mainly by strong acid sites and the alkanisation was favored chiefly by weak acid sites in catalyst ZSM-5. In addition, the formation of phenolic compounds was mainly related to the interactions between the intermediates from the co-pyrolysis over ZSM-5. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1025 / 1032
页数：8
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