Continuous operation of commercial-scale plasma-chemical aftertreatment system of smoke tube boiler emission with oxidation reduction potential and pH control

被引：24

作者：

Kuroki, Tomoyuki ^{[1
]}

Fujishima, Hidekatsu ^{[2
]}

Otsuka, Keiichi ^{[3
]}

Ito, Tomohiro ^{[1
]}

Okubo, Masaaki ^{[1
]}

Yamamoto, Toshiaki ^{[4
]}

Yoshida, Keiichiro ^{[2
]}

机构：

[1] Osaka Prefecture Univ, Naka Ku, Osaka 5998531, Japan

[2] Japan Sci & Technol Agcy, Osaka 5941144, Japan

[3] Takao Iron Works Co Ltd, Osaka 5610826, Japan

[4] Musashi Inst Technol, Setagaya Ku, Tokyo 1588557, Japan

来源：

THIN SOLID FILMS | 2008年 / 516卷 / 19期

基金：

日本科学技术振兴机构;

关键词：

nonthermal plasma; ORP; pH; indirect plasma; NO(x); removal; plasma-chemical hybrid process;

D O I：

10.1016/j.tsf.2007.11.101

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

NO(x) removal from an actual boiler flue gas is investigated using an indirect plasma and chemical hybrid system comprising a commercial ozonizer and an Na(2)SO(3) chemical scrubber. A high NO(x) removal efficiency in the continuous operation of a commercial-scale apparatus is achieved by controlling pH and oxidation reduction potential (ORP) and injecting additional Na(2)SO(3) and NaOH aqueous solutions into the scrubber sump when required. Ozone injection is demonstrated to be extremely effective for NO oxidation. The relation between the ORP and NO, removal efficiency, which is essential for the optimal operation of this system, is obtained. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：6704 / 6709

页数：6

共 19 条

[1] Reduction of NOx from combustion flue gases by corona discharge activated methane radical injections [J].

Chang, JS ;

Urashima, K ;

Arquilla, M ;

Ito, T .

COMBUSTION SCIENCE AND TECHNOLOGY, 1998, 133 (1-3) :31-47

[2] Absorption of NO2 in a packed tower with Na2SO3 aqueous solution [J].

Chen, L ;

Lin, JW ;

Yang, CL .

ENVIRONMENTAL PROGRESS, 2002, 21 (04) :225-230

[3] INDUSTRIAL EXPERIMENTS ON PULSE CORONA SIMULTANEOUS REMOVAL OF NOX AND SO2 FROM FLUE-GAS [J].

DINELLI, G ;

CIVITANO, L ;

REA, M .

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, 1990, 26 (03) :535-541

[4] Single-stage plasma-chemical process for particulates, NOx, and SOx simultaneous removal [J].

Kuroki, T ;

Takahashi, M ;

Okubo, M ;

Yamamoto, T .

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, 2002, 38 (05) :1204-1209

[5] Reduction of nitrogen oxide in N2 by NH3 using intermittent dielectric barrier discharge [J].

Nishida, M ;

Yukimura, K ;

Kambara, S ;

Maruyama, T .

JOURNAL OF APPLIED PHYSICS, 2001, 90 (06) :2672-2677

[6] NOx removal using ammonia radicals prepared by intermittent dielectric barrier discharge at atmospheric pressure [J].

Nishida, M ;

Yukimura, K ;

Kambara, S ;

Maruyama, T .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 2001, 40 (2B) :1114-1117

[7]

NOVOSELOV SS, 1986, THERM ENG+, V33, P496

[8]

Okubo M., 2006, J ENV ENG, V1, P29, DOI [10.1299/jee.1.29, DOI 10.1299/JEE.1.29]

[9]

SANO K, 2003, IEEJ T FUNDAM MAT, V123, P1030

[10]

Simachev V Yu, 1988, THERM ENG, V35, P67

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