Study of nitrogen in the combustion of natural gas

Química Nova

Büchler, Pedro Maurício¹  Rangel, Leonardo Paes¹  Universidade de Pernambuco, Recife¹  Universidade de São Paulo, São Paulo¹ 

关键词: natural gas;    combustion;    nitrogen.;   

DOI  :  10.1590/S0100-40422005000600005

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

Nitrogen content in natural gas was studied in experimental and computational investigations to identify its influence on the emission level of exhaust gases from combustion facilities. Changes in natural gas composition with different N2 concentrations may result from introducing a new source gas into the system. An industrial burner fired at 75 kW, housed in a laboratory-scale furnace, was employed for runs where the natural gas/N2 proportion was varied. The exhaust and in-furnace measurements of temperature and gas concentrations were performed for different combustion scenarios, varying N2 content from 1-10 %v. Results have shown that the contamination of natural gas with nitrogen reduced the peak flame temperature, the concentration of unstable species, the NOX emission level and the heat transfer rate to the furnace walls, resulting from the recombination reactions.

【 授权许可】

Unknown