Improving levoglucosan and hydrocarbon production through gas-phase synergy during cellulose and polyolefin co-pyrolysis

被引：5

作者：

Xie, Shengyu ^{[1
]}

Ma, Chuan ^{[1
]}

Kumagai, Shogo ^{[1
,2
]}

Takahashi, Yusuke ^{[1
]}

Kameda, Tomohito ^{[1
]}

Saito, Yuko ^{[1
]}

Yoshioka, Toshiaki ^{[1
]}

机构：

[1] Tohoku Univ, Grad Sch Environm Studies, Aoba Ku, 6-6-07 Aoba, Sendai, Miyagi 9808579, Japan

[2] Tohoku Univ, Div Estab Frontier Sci Org Adv Studies, Aoba Ku, 2-1-1 Katahira, Sendai, Miyagi 9808577, Japan

来源：

SUSTAINABLE ENERGY & FUELS | 2022年 / 6卷 / 06期

关键词：

LIGNOCELLULOSIC BIOMASS; DENSITY POLYETHYLENE; PLASTICS; GASIFICATION; PRETREATMENT; REACTOR;

D O I：

10.1039/d1se01836a

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The co-pyrolysis of biomass and plastic is a promising technology for producing valuable chemicals. Herein, we report a novel split-flow tube reactor designed to focus on gas-phase synergy during the co-pyrolysis of cellulose and polyolefins, such as polyethylene (PE) and polypropylene (PP), at 650 degrees C in various blending proportions. The split-flow tube reactor significantly enhances levoglucosan (LG) recovery compared with the conventional straight-tube reactor, resulting in 3.1- and 2.1-times higher yields than those theoretically calculated (2.8 wt%) for 1 : 2 w/w cellulose/PE and 1 : 2 w/w cellulose/PP. In addition, gas-phase interactions between cellulose and polyolefin pyrolyzates were found to improve hydrocarbon-oil production by enhancing the decomposition of polyolefin-derived wax. These findings reveal that gas-phase pyrolytic interactions have significant potential for enhancing the production of chemical feedstocks or fuels from biomass and plastic waste.

引用

页码：1469 / 1478

页数：11