The Reduction of Noxious Emissions Using Urea Based on Selective Non-Catalytic Reduction in Small Scale Bio Fuel Combustion System

: Exploring low-cost, green and safe technologies to provide an alternative to the conventional selective catalytic reduction process is key to the control of NOx emitted from small-scale boilers and other industrial processes. To meet the demand, the chemical absorption-biological reduction integrated system has been developing recently. chemical absorption-biological reduction integrated system applies Fe(II)EDTA for NO absorption and iron-reducing and denitrifying bacteria for absorbent regeneration. Many studies have focused on the enhancements of mass transfer and biological reaction, among which the biological processes were the rate-limiting steps. This review summarizes the current researches on the biological processes in the CABR system, which focuses on the mechanism and enhancement of biochemical reactions, and provides the possible directions of future research.

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Experimental Study on the Regenerative Oxy-Fuel Combustion System with Ceramic Ball

Journal of Energy Engineering ◽

10.5855/energy.2013.22.2.169 ◽

2013 ◽

Vol 22 (2) ◽

pp. 169-174

Author(s):

Sung Kook Hong ◽

Dong Soon Noh ◽

Eun Kyung Lee

Keyword(s):

Experimental Study ◽

Fuel Combustion ◽

Combustion System ◽

Ceramic Ball

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The Feasibility Analysis of Applying SCR Technology to Regenerative Combustion System

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.610-613.1747 ◽

2012 ◽

Vol 610-613 ◽

pp. 1747-1750

Author(s):

Zhong Jun Tian ◽

Shi Ping Jin ◽

Tan Li ◽

Zhen Biao Hao ◽

Wu Qi Wen

Keyword(s):

Flue Gas ◽

Waste Heat ◽

Catalytic Reduction ◽

Catalytic Reactions ◽

Feasibility Analysis ◽

Combustion System ◽

Combustion Technology ◽

Temperature Window ◽

Regenerative Cells ◽

Industrial Heating

The regenerative combustion technology has been widely used in the recovery of flue gas waste heat, but the denitration is not considered. This article is based on the comprehensive application of the Selective Catalytic Reduction(SCR) technology and the regenerative combustion technology to recycling waste heat and removing NOx from flue gas. In many industrial heating processes, the temperature of flue gas falls from above 1000°C to the ambient temperature (50°C-100°C) along regenerators, while the temperature window of most catalysts ranges from 200°C to 450°C, meanwhile catalysts and regenerative cells are porous mediums, so the regenerative cells that hold a temperature range for catalytic reactions can be replaced by catalysts, and the waste heat of flue gas can be recovered and the nitrogen oxides can be removed simultaneously.

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Dynamic simulation and transient analysis of a 3MWth oxy-fuel combustion system

International Journal of Greenhouse Gas Control ◽

10.1016/j.ijggc.2015.02.003 ◽

2015 ◽

Vol 35 ◽

pp. 138-149 ◽

Cited By ~ 12

Author(s):

Wei Luo ◽

Qiao Wang ◽

Xiaohong Huang ◽

Zhaohui Liu ◽

Chuguang Zheng

Keyword(s):

Dynamic Simulation ◽

Transient Analysis ◽

Fuel Combustion ◽

Combustion System

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Design and Testing of an Ultra-Low NOx Gas Turbine Combustor

Volume 3: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations ◽

10.1115/86-gt-263 ◽

1986 ◽

Cited By ~ 8

Author(s):

Kenneth O. Smith ◽

Leonard C. Angello ◽

F. Richard Kurzynske

Keyword(s):

Natural Gas ◽

Gas Turbine ◽

Catalytic Reduction ◽

Water Injection ◽

Nox Emissions ◽

Combustion System ◽

Gas Turbine Combustor ◽

Program Goal ◽

Primary Zone ◽

Design And Testing

The design and initial rig testing of an ultra-low NOx gas turbine combustor primary zone are described. A lean premixed, swirl-stabilized combustor was evaluated over a range of pressures up to 10.7 × 105 Pa (10.6 atm) using natural gas. The program goal of reducing NOx emissions to 10 ppm (at 15% O2) with coincident low CO emissions was achieved at all combustor pressure levels. Appropriate combustor loading for ultra-low NOx operation was determined through emissions sampling within the primary zone. The work described represents a first step in developing an advanced gas turbine combustion system that can yield ultra-low NOx levels without the need for water injection and selective catalytic reduction.

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