用于DENOX项目的尿素水解器ASPEN PLUS模拟
摘要
运用ASPEN PLUS对国内某电厂脱硝装置中的尿素水解器建立了计算模型。对尿素水解反应机理进行了分析。采用全混流模型对水解器建模,并运用UNIQUC模型计算Urea-H2O-CO2-NH3体系气液平衡。该模型计算结果与生产数据吻合较好。研究结果表明,尿素水解器宜在140-160℃,4-9bar的条件下操作。
引文
[1]柴小康.选择性催化还原法烟气脱氮工艺还原剂的选择[J].沈阳工程学院学报(自然科学版),2008,4(4).
[2]朱冲,耿桂淦,腾建军,等.火电厂脱硝的尿素制氨技术概述[J].中国环保产业,2012(10):47-49.
[3]Mahalik K,Sahu J,Patwardhan A V,et al.Kinetic studies on hydrolysis of urea in a semi-batch reactor at atmospheric pressure for safe use of ammonia in a power plant for flue gas conditioning[J].Journal of hazardous materials,2010,175(1):629-637.
[4]Sahu J,Patwardhan A,Meikap B.Equilibrium and kinetic studies of in situ generation of ammonia from urea in a batch reactor for flue gas conditioning of thermal power plants[J].Industrial&Engineering Chemistry Research,2009,48(5):2705-2712.
[5]Sahu J,Chava V,Hussain S,et al.Optimization of ammonia production from urea in continuous process using ASPEN Plus and computational fluid dynamics study of the reactor used for hydrolysis process[J].Journal of Industrial and Engineering Chemistry,2010,16(4):577-586.
[6]刘勇.尿素水解的优化运行[J].化肥设计,2000,38(4):30-32.
[7]Zheng P,Yao X,Zheng W.Design guidelines for urea hydrolysers for ammonia demand of the SCR DENOX project in coal-fired power plants[J].Frontiers in Energy,2013,7(1):127-132.
[8]朱炳辰.反应工程[M].北京:化学工业出版社,2000.
[9]Aoki H,Fujiwara T,Morozumi Y,et al.Measurement of urea thermal decomposition reaction rate for NO selective non-catalytic reduction//proceedings of the Fifth international conference on technologies and combustion for a clean environment,F[C].Lisbon Portugal:The Combustion Institute.1999.
[10]Durish W.Contituent and component measurement and calculations of the VLE of the tenary system carbon dioxideammonia-water under urea synthesis conditions[J].Chimia,1980,34(7):314.
[11]Rahimpour M.A non-ideal rate-based model for industrial urea thermal hydrolyser[J].Chemical Engineering and Processing:Process Intensification,2004,43(10):1299-1307.
[12]Barmaki M,Rahimpour M,Jahanmiri A.Treatment of wastewater polluted with urea by counter-current thermal hydrolysis in an industrial urea plant[J].Separation and Purification Technology,2009,66(3):492-503.
[2]朱冲,耿桂淦,腾建军,等.火电厂脱硝的尿素制氨技术概述[J].中国环保产业,2012(10):47-49.
[3]Mahalik K,Sahu J,Patwardhan A V,et al.Kinetic studies on hydrolysis of urea in a semi-batch reactor at atmospheric pressure for safe use of ammonia in a power plant for flue gas conditioning[J].Journal of hazardous materials,2010,175(1):629-637.
[4]Sahu J,Patwardhan A,Meikap B.Equilibrium and kinetic studies of in situ generation of ammonia from urea in a batch reactor for flue gas conditioning of thermal power plants[J].Industrial&Engineering Chemistry Research,2009,48(5):2705-2712.
[5]Sahu J,Chava V,Hussain S,et al.Optimization of ammonia production from urea in continuous process using ASPEN Plus and computational fluid dynamics study of the reactor used for hydrolysis process[J].Journal of Industrial and Engineering Chemistry,2010,16(4):577-586.
[6]刘勇.尿素水解的优化运行[J].化肥设计,2000,38(4):30-32.
[7]Zheng P,Yao X,Zheng W.Design guidelines for urea hydrolysers for ammonia demand of the SCR DENOX project in coal-fired power plants[J].Frontiers in Energy,2013,7(1):127-132.
[8]朱炳辰.反应工程[M].北京:化学工业出版社,2000.
[9]Aoki H,Fujiwara T,Morozumi Y,et al.Measurement of urea thermal decomposition reaction rate for NO selective non-catalytic reduction//proceedings of the Fifth international conference on technologies and combustion for a clean environment,F[C].Lisbon Portugal:The Combustion Institute.1999.
[10]Durish W.Contituent and component measurement and calculations of the VLE of the tenary system carbon dioxideammonia-water under urea synthesis conditions[J].Chimia,1980,34(7):314.
[11]Rahimpour M.A non-ideal rate-based model for industrial urea thermal hydrolyser[J].Chemical Engineering and Processing:Process Intensification,2004,43(10):1299-1307.
[12]Barmaki M,Rahimpour M,Jahanmiri A.Treatment of wastewater polluted with urea by counter-current thermal hydrolysis in an industrial urea plant[J].Separation and Purification Technology,2009,66(3):492-503.