Hierarchical methods to improve the performance of the SiC-FET as SO2 sensors in flue gas desulphurization systems

被引：6

作者：

Darmastuti, Z. ^{[1
]}

Bur, C. ^{[1
,3
]}

Lindqvist, N. ^{[2
]}

Andersson, M. ^{[1
]}

Schuetze, A. ^{[3
]}

Spetz, A. Lloyd ^{[1
]}

机构：

[1] Linkoping Univ, Dept Phys Chem & Biol, Linkoping, Sweden

[2] Alstom Power AB, Vaxjo, Sweden

[3] Univ Saarland, Lab Measurement Technol, D-66123 Saarbrucken, Germany

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2015年 / 206卷

关键词：

SO2; sensors; SiC-FET; Pt; Temperature cycled operation (TCO); Hierarchical methods; Power plant; COMBUSTION CONTROL;

D O I：

10.1016/j.snb.2014.09.113

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Experiments were performed both in the laboratory and a desulfurization pilot unit in order to improve the SiC-FET sensor performance using two-step data evaluation. In both cases, a porous Pt-gate enhancement type SiC-FET was utilized in a temperature cycled operation (TCO). Liner Discriminant Analysis (LDA) was chosen as the method for multivariate data analysis. Hierarchical methods with two-step LDA worked quite well in the laboratory tests with SO2 concentrations varied from 25 to 200 ppm. The same data evaluation was also applied to tests in the desulfurization pilot unit, with higher gas flow and a larger SO2 concentration range (up to 5000 ppm). The results from the SO2 quantification showed a significantly improved fit to corresponding reference instrument (FTIR) values. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：609 / 616

页数：8

共 29 条

[1]

Adam M., 2014, SULPHUR DIOXIDE SO2

[2]

Alstom Power, AIR QUAL CONTR SYST

[3] A MISiCFET based gas sensor system for combustion control in small-scale wood fired boilers [J].

Andersson, M. ;

Everbrand, L. ;

Spetz, A. Lloyd ;

Nystroem, T. ;

Nilsson, M. ;

Gauffin, C. ;

Svensson, H. .

2007 IEEE SENSORS, VOLS 1-3, 2007, :962-965

[4] Investigations on the possibilities of a MISiCFET sensor system for OBD and combustion control utilizing different catalytic gate materials [J].

Andersson, M ;

Ljung, P ;

Mattsson, M ;

Löfdahl, M ;

Spetz, AL .

TOPICS IN CATALYSIS, 2004, 30-1 (1-4) :365-368

[5] New generation SiC based field effect transistor gas sensors [J].

Andersson, Mike ;

Pearce, Ruth ;

Spetz, Anita Lloyd .

SENSORS AND ACTUATORS B-CHEMICAL, 2013, 179 :95-106

[6] EFFECTS OF SO2 ON THE ALKANE ACTIVITY OF 3-WAY CATALYSTS [J].

ANSELL, GP ;

GOLUNSKI, SE ;

HATCHER, HA ;

RAJARAM, RR .

CATALYSIS LETTERS, 1991, 11 (02) :183-190

[7] Study of the Sensing Mechanism Towards Carbon Monoxide of Platinum-Based Field Effect Sensors [J].

Becker, Elin ;

Andersson, Mike ;

Eriksson, Mats ;

Spetz, Anita Lloyd ;

Skoglundh, Magnus .

IEEE SENSORS JOURNAL, 2011, 11 (07) :1527-1534

[8]

Bur C., 2011, IEEE SENS J, P3

[9] Increasing the Selectivity of Pt-Gate SiC Field Effect Gas Sensors by Dynamic Temperature Modulation [J].

Bur, Christian ;

Reimann, Peter ;

Andersson, Mike ;

Schuetze, Andreas ;

Spetz, Anita Lloyd .

IEEE SENSORS JOURNAL, 2012, 12 (06) :1906-1913

[10] SiC-FET based SO2 sensor for power plant emission applications? [J].

Darmastuti, Z. ;

Bur, C. ;

Moller, P. ;

Rahlin, R. ;

Lindqvist, N. ;

Andersson, M. ;

Schuetze, A. ;

Spetz, A. Lloyd .

SENSORS AND ACTUATORS B-CHEMICAL, 2014, 194 :511-520

← 1 2 3 →