Production of bio-fuels by high temperature pyrolysis of sewage sludge using conventional and microwave heating

被引：344

作者：

Domínguez, A ^{[1
]}

Menéndez, JA ^{[1
]}

Inguanzo, M ^{[1
]}

Pís, JJ ^{[1
]}

机构：

[1] CSIC, Inst Nacl Carbon, E-33080 Oviedo, Spain

来源：

BIORESOURCE TECHNOLOGY | 2006年 / 97卷 / 10期

关键词：

bio-gas; hydrogen; syngas; sewage sludge; pyrolysis; gasification; microwave;

D O I：

10.1016/j.biortech.2005.05.011

中图分类号：

S2 [农业工程];

学科分类号：

0828 [农业工程];

摘要：

The pyrolysis of sewage sludge was investigated using microwave and electrical ovens as the sources of heat, and graphite and char as microwave absorbers. The main objective of this work was to maximize the gas yield and to assess its quality as a fuel and as a source of hydrogen or syngas (H-2 + CO). Both gases were produced in a higher proportion by microwave pyrolysis than by conventional pyrolysis, with a maximum value of 38% for H-2 and 66% for H-2 + CO. The oils obtained were also characterized using FTIR and GC-MS. The use of conventional electrical heating in the pyrolysis of sewage sludge produced an oil that could have a significant environmental and toxicological impact. Conversely: microwave pyrolysis still preserved some of the functional groups of the initial sludge such as aliphatic and oxygenated compounds, whereas no heavy PACs were detected. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：1185 / 1193

页数：9

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