摘要:

Oxygen - nitrogen mixture gas plasma has been studied theoretically and experimentally to understand the basic property of the plasma. Large volume spatially uniform plasma was assumed for simplicity. 17 kinds of species and their various reactions were considered. The effect of nitrogen gas mixing appeared in the oxygen atom density in the plasma. The experimental confirmation has also been done and discussed

ISSN:0010-2202    

DOI:10.1080/00102209808952033

出版商:Taylor & Francis Group    

年代:1998

数据来源: Taylor

摘要:

By initiating chain reactions that consume NOx, CHiradicals play an important role in natural gas reburning. In conventional reburning, most of the methane is consumed in reactions with oxygen to form CO, and does not produce CHi- radicals as intermediate products, which limits NO reduction efficiency. Activating natural gas externally to the boiler may generate a mixture of CHiradicals by passing CH4through a discharge before injection into the reburning zone. Five activation technologies are reviewed: microwave heating and discharge plasmas, electron beam irradiation-induced plasmas, corona discharge induced plasmas, and thermal plasmas. Wall, cyclone and tangentially fired boilers were considered in the economic assessment. From preliminary capital and operating cost estimates, pulse corona and electron beam techniques appear to be the most promising activation techniques

ISSN:0010-2202    

DOI:10.1080/00102209808952034

出版商:Taylor & Francis Group    

年代:1998

数据来源: Taylor