天然气工业2017，Vol.37Issue(6)：99-106,8.DOI:10.3787/j.issn.1000-0976.2017.06.014
基于响应面法的加氢进料燃烧炉运行优化研究
Operation optimization of a hydrogenation feed combustion furnace based on the response surface methodology
摘要
Abstract
In a natural gas purification plant,the hydrogenation feed combustion furnace is confronted with high fuel consumption and high oatlet flue gas temperatures.In view of these problems,the operation parameters were optimized by means of response surface methodology (RSM) and numerical simulation.Firstly,a model for hydrogenation feed combustion inside the furnace was established by using CHEMKIN-PRO based on GRI-Mech 3.0 methane chemical reaction mechanism and Fluent temperature field analysis,and the calculation results were verified by the field test data.Secondly,the influential laws of flow rate of fuel gas,air/low pressure steam,and upstream exhaust at the inlet on the flue temperature and hydrogen composition concentration at the outlet were numerically analyzed using the orthogonal experiment design method.Finally,the operation parameters at the inlet of hydrogenation feed furnace were optimally designed by using the response surface methodology.It is indicated that an incomplete combustion reaction between methane and air happens in the furnace and the effect of steam on combustion is negligible;that the temperature and hydrogen concentration of outlet flue gas are most affected by the flow rates of air and fuel gas,respectively;that decreasing both flow rates collaboratively is useful for reducing the outlet flue gas temperature of the furnace while the hydrogen concentration is kept at a certain level;that by virtue of orthogonal experimental design and RSM,the effects of each inlet parameter on the temperature and hydrogen concentration at the outlet can be analyzed accurately and the optimal operation parameters in the corresponding working condition can be predicted effectively;and that after the optimization,the temperature at the outlet of the hydrogenation fccd furnace drops by 57 K,mol fraction of hydrogen at the outlet increases by 0.41％ and fuel consumption declines by 7.51％.关键词
天然气/脱硫工艺/加氢进料燃烧炉/燃烧模型/响应面法/正交试验设计/数值模拟/参数优化Key words
Natural gas/Desulfurization/Hydrogenation feed combustion furnace/Combustion model/Response surface methodology (RSM)/Orthogonal experimental design/Numerical simulation/Parameter optimization引用本文复制引用
姚宇光,张永学,田原,侯虎灿..基于响应面法的加氢进料燃烧炉运行优化研究[J].天然气工业,2017,37(6):99-106,8.基金项目
“中国石油大学(北京)青年教师专项培养基金项目”(编号:2462015YQ0411). （北京）
