文档介绍：水溶液全循环法制尿素中压系统工艺设计与优化FullCycleoftheAqueousSolutionMethodforManufacturingUreainthePressureSystemProcessDesignandOptimization目录摘要ⅠAbstractⅡ(摩尔比):尿素工业化生产以来的百余年间,一直是肥料工业生产的主要品种。具有生产工艺简单,生产操作易于掌握;生产设备容易制造,投资较省;施用后见效快,增产显著等特点。尿素在各种肥料新品种不断涌现的情况下产销量仍居高不下。本设计介绍了尿素的性质、用途、生产方法和发展状况,详细描述了水溶液全循环法生产尿素的工艺流程,重点介绍了尿素的中压系统工业生产的过程,〜;操作温度的控制90〜95℃;;氨水、回流氨的控制进料中氨水浓度维持在90%〜95%左右。并对单位质量参加反应的原料进行物料衡算和热量衡算,以期获得低耗能、低污染、高产出的尿素生产工艺。关键词:尿素中压系统全循环工艺流程FullcycleoftheaqueoussolutionmethodformanufacturingureainthepressuresystemprocessdesignandoptimizationAbstract::theproductionprocessissimpleandproductionoperationsareeasytobemasteredandproductionequipmentiseasytobemanufactured;Cheaperinvestment;appliedsoonaftertoseetheeffect;,purposes,methodsofproductionanddevelopment,Adetaileddescriptionoftheprocessflowoftheaqueoussolutionofthewholecycleofproductionofurea,;operatingtemperatureshouldbecontrolledat90to95°C;;Ammonia,returningcontroloftheammonia,theammoniaconcentrationinthefeedshouldbemaintainedat90%to95%.Andtheunitmasstoparticipateinthereactantmaterialbalancecalculationsandheatbalancecalculationsinordertoobtainalowen