Effects of hydrothermal treatment of sewage sludge on pyrolysis and steam gasification

被引：53

作者：

Moon, Jihong ^{[1
,2
]}

Mun, Tae-Young ^{[1
]}

Yang, Won ^{[1
,4
]}

Lee, Uendo ^{[1
,4
]}

Hwang, Jungho ^{[2
,3
]}

Jang, Ensuk ^{[5
]}

Choi, Changsik ^{[5
]}

机构：

[1] Korea Inst Ind Technol, Thermochem Energy Syst R&D Grp, Cheonan 331822, Chungnam, South Korea

[2] Yonsei Univ, Dept Clean Technol Engn, Seoul 120749, South Korea

[3] Yonsei Univ, Dept Mech Engn, Seoul 120749, South Korea

[4] Univ Sci & Technol, Dept Green Proc & Syst Engn, Cheonan 331822, Chungnam, South Korea

[5] Inst Adv Engn, Yongin 449863, Gyeonggi, South Korea

来源：

ENERGY CONVERSION AND MANAGEMENT | 2015年 / 103卷

关键词：

Sewage sludge; Hydrothermal treatment; Pyrolysis; Steam gasification; Lignin content; Methane yield; BIOMASS; HYDROGEN; PRETREATMENT; GASIFIER;

D O I：

10.1016/j.enconman.2015.06.058

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Hydrothermal treatment is a promising option for pretreatment drying of organic waste, due to its low energy consumption and contribution to increasing fuel energy density. In this study, the characteristics of hydrothermally treated sewage sludge were investigated, and pyrolysis and steam gasification were performed with the sludge before and after hydrothermal treatment. The overall composition of product gases from treated sludge was similar to that obtained from steam gasification of wood chips, particularly under high-temperature conditions. In addition, the increase in lignin content of sewage sludge following hydrothermal treatment could help enhance methane yield in product gas during pyrolysis and steam gasification. The findings suggest that hydrothermal treatment is an appropriate method for improving sewage sludge for use as an alternative to biomass and fossil fuels. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：401 / 407

页数：7

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