A 7 year long measurement period investigating the correlation of corrosion, deposit and fuel in a biomass fired circulated fluidized bed boiler

被引：71

作者：

Sandberg, Jan ^{[1
]}

Karlsson, Christer ^{[1
]}

Fdhila, Rebei Bel ^{[1
,2
]}

机构：

[1] Malardalen Univ, Dept Energy Technol, Fluid Dynam Res Grp, SE-72123 Vasteras, Sweden

[2] ABB Corp Res, Dept Automat Technol, SE-72178 Vasteras, Sweden

来源：

APPLIED ENERGY | 2011年 / 88卷 / 01期

关键词：

Superheater tubes; Deposit layer; Fouling; Corrosion; Biomass fired boiler; Recycled wood; COMBUSTION; FATE; RELEASE; COAL; CL;

D O I：

10.1016/j.apenergy.2010.07.025

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The present investigation involves a unique, 7 year (2001-2007) long study of corrosion and deposits on superheater tubes in a biomass fired circulated fluidized bed boiler. These measurements are correlated against the different fuels used over this period. In the earlier years, the boiler was run with a mixture of different biomass fuels and peat. In later years, recycled wood was introduced into the fuel mix. The deposit growth rate approximately doubled when the recycled wood content of the fuel was increased to 10-20%. Small amounts of chlorine and zinc were found both in the recycled wood and in the deposit layer. These elements together with alkali metals from the biomass, have the potential to form sticky compounds that increase the deposit growth rate. The corrosion rate of the superheater tubes varied over the study period. A number of possible explanations for this phenomenon are discussed. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：99 / 110

页数：12

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