Co-pyrolysis of textile dyeing sludge and red wood waste in a continuously operated auger reactor under microwave irradiation

被引：48

作者：

Zhou, Chunbao ^{[1
,2
]}

Zhang, Yingwen ^{[1
,2
]}

Liu, Yang ^{[1
,2
]}

Deng, Zeyu ^{[1
,2
]}

Li, Xiangtong ^{[1
,2
]}

Wang, Long ^{[1
,2
]}

Dai, Jianjun ^{[1
,2
]}

Song, Yongmeng ^{[1
,2
]}

Jiang, Zhihui ^{[1
,2
]}

Qu, Junshen ^{[1
,2
]}

Siyal, Asif Ali ^{[1
,2
]}

机构：

[1] Beijing Univ Chem Technol, State Key Lab Organ Inorgan Composites, Beijing 100029, Peoples R China

[2] Beijing Univ Chem Technol, Coll Chem Engn, Beijing 100029, Peoples R China

来源：

ENERGY | 2021年 / 218卷

关键词：

Co-pyrolysis; Microwave; Textile dying sludge; Red wood waste; SEWAGE-SLUDGE; LIGNOCELLULOSIC BIOMASS; FLUIDIZED-BED; TG-FTIR; PRODUCTS; MICROALGAE; ENERGY; CONVERSION; KINETICS;

D O I：

10.1016/j.energy.2020.119398

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The eco-friendly disposal of textile dyeing sludge (TDS) has become a worldwide environmental issue due to their complexity and toxicity. In this study, co-pyrolysis of TDS and red wood waste (RWW) in a continuously operated auger reactor under microwave irradiation was investigated, which was more environmentally friendly and created higher value added products. Effects of pyrolysis temperature and RWW ratio were studied to evaluate product distribution and properties. Increase of temperature and RWW ratio resulted in decrease in char yield and increase in gas yield. The contents of CO, CH4, and H-2 increased significantly with RWW ratio increased at 650 degrees C. The content of pyridines, amines, and nitriles enhanced sharply with increasing temperature from 450 to 750 degrees C. Co-pyrolysis promoted the Maillard reaction and cracking of nitrogen-containing pigments, forming large quantities of N-heterocyclics in bio-oil. Sludge char obtained by pyrolysis of TDS at 650 degrees C had a greater sulfur retention ability than chars from co-pyrolysis. The highest methylene blue number (372.25 mg/g) and iodine adsorption value (332.42 mg/g) were achieved from TDS and biochar (750 degrees C, 30 wt% RWW ratio), respectively. Fe(III) in Fe2O3 was reduced to Fe(II) in Fe3O4 and further partially reduced to metallic Fe in biochar. (C) 2020 Elsevier Ltd. All rights reserved.

引用

页数：13

共 49 条

[1] Fast co-pyrolysis of sewage sludge and lignocellulosic biomass in a conical spouted bed reactor [J].