Influence of feedstock composition in fluidised bed co-gasification of mixtures of lignite, bituminous coal and sewage sludge

被引：41
|
作者：
Garcia, G. [1 ]
Arauzo, J. [2 ]
Gonzalo, A. [2 ]
Sanchez, J. L. [2 ]
Abrego, J. [2 ]
机构：
[1] AEMA Serv, E-26540 Alfaro, Spain
[2] Univ Zaragoza, Aragon Inst Engn Res I3A, Thermochem Proc Grp, E-50018 Zaragoza, Spain
来源：
CHEMICAL ENGINEERING JOURNAL | 2013年 / 222卷
关键词：
Co-gasification; Sewage sludge; Coal; Experimental design; BIOMASS GASIFICATION; TRACE-ELEMENTS; GAS QUALITY; COMBUSTION; COCOMBUSTION; AIR; COGASIFICATION; TEMPERATURE; FE/OLIVINE; PYROLYSIS;
D O I：
10.1016/j.cej.2013.02.073
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Energy recovery from sewage sludge can be achieved by several thermochemical processes, including its co-processing with other fuels. In this work, co-gasification of mixtures of sewage sludge with two types of coal (bituminous and lignite) was performed in a laboratory-scale fluidised bed reactor. The influence of the feedstock composition on key parameters of gasification-such as gas heating value and yield, cold gas efficiency and tar generation-was determined. Whereas some of these results can be explained as the sum of individual contributions of each feedstock component, some synergistic effects were also identified. Among these, the decrease of tar yield and the increase of H-2 and CO in the gas suggest that co-gasification of sewage sludge with certain types of coal may be energetically advantageous and improve the process performance. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：345 / 352
页数：8
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