Towards ideal NOx control technology for bio-oils and a gas multi-fuel boiler system using a plasma-chemical hybrid process

被引：23

作者：

Fujishima, Hidekatsu ^{[1
]}

Takekoshi, Kenichi ^{[1
]}

Kuroki, Tomoyuki ^{[1
]}

Tanaka, Atsushi ^{[2
]}

Otsuka, Keiichi ^{[2
]}

Okubo, Masaaki ^{[1
]}

机构：

[1] Osaka Prefecture Univ, Grad Sch Engn, Dept Mech Engn, Naka Ku, Sakai, Osaka 5998531, Japan

[2] Takao Iron Works Co Ltd, Dept Engn, Toyonaka, Osaka 5610826, Japan

来源：

APPLIED ENERGY | 2013年 / 111卷

关键词：

Bio-oil; Nonthermal plasma; Chemical process; NOx treatment; Ozone; CO2; reduction; SIMULTANEOUS REMOVAL; FLUE-GASES; REDUCTION; PERFORMANCE; DISCHARGE; EMISSION; SO2;

D O I：

10.1016/j.apenergy.2013.05.011

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：

A super-clean boiler system comprising a multi-fuel boiler and a reactor for plasma-chemical hybrid NOx aftertreatment is developed, and its industrial applications are examined. The purpose of this research is to optimally reduce NOx emission and utilize waste bio-oil as a renewable energy source. First, NO oxidation using indirect plasma at elevated flue gas temperatures is investigated. It is clarified that more than 98% of NO is oxidized when the temperature of the flue gas is less than 130 degrees C. Three types of waste bio-oils (waste vegetable oil, rice bran oil, and fish oil) are burned in the boiler as fuels with a rotary-type burner for CO2 reduction considering carbon neutrality. NOx in the flue gases of these bio-oils is effectively reduced by the indirect plasma-chemical hybrid treatment. Ultralow NOx emission less than 2 ppm is achieved for 450 min in the firing of city natural gas fuel. The boiler system can be successfully operated automatically according to unsteady steam demand and using an empirical equation for Na2SO3 supply rate, and can be used in industries as an ideal NOx control technology. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：394 / 400

页数：7

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