Biomass Combustion with in Situ CO2 Capture by CaO. II. Experimental Results

被引：20

作者：

Alonso, Monica ^{[1
]}

Rodriguez, Nuria ^{[1
]}

Gonzalez, Belen ^{[1
]}

Arias, Borja ^{[1
]}

Abanades, Juan C. ^{[1
]}

机构：

[1] CSIC, Inst Nacl Carbon, INCAR, Oviedo 33011, Spain

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2011年 / 50卷 / 11期

关键词：

FLUIDIZED-BED; GASIFICATION; SYSTEM;

D O I：

10.1021/ie102355e

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Experiments to test the concept of biomass combustion with in situ CO2 capture by CaO have been conducted in a 30 kW interconnected fluidized-bed test facility. The CO2 capture efficiency in a combustor-carbonator reactor was measured over a range of operating conditions, using three biomass feeds (olive pits, saw dust, and pellets). Overall CO2 capture efficiencies higher than 80% were achieved with sufficiently high solids circulation rates of CaO and solids inventories in the combustor-carbonator. Emissions of CO and CH4 were detected during the experiments, possibly because of pulse feeding and/or an inappropriate air/fuel mixture. The application of a simple reactor model for combining biomass combustion and CO2 capture allows an effectiveness factor of 0.74 to be derived for all of the experiments. This could be valuable for scaling-up purposes.

引用

页码：6982 / 6989

页数：8

共 24 条

[1] Capture of CO2 from combustion gases in a fluidized bed of CaO [J].