工艺设计流程图设计的基本步骤.pptVIP

Chemical Process DesignInstitute of Chemical EngineeringProcess Diagram 工艺流程图设计的基本步骤 1. 作工艺流程草图或示意图（方框图） 2. 作工艺物料流程图（物料衡算图）PFD 3. 作带控制点的工艺流程图 PID Introduction to Chemical Process Design “Got a few problems goingfrom lab-scale upto full-scale commercial” Equipment DescriptionC-101 Feed Air CompressorE-101 Reactor PreheaterE-102 CondenserE-103 ReboilerE-104 CondenserE-105 ReboilerE-106 CondenserP-101A/B Water PumpP-102A/B Reflux PumpP-103A/B Reflux PumpR-101 Packed Bed ReactorT-101 Acrolein AbsorberT-102 Water Distillation TowerT-103 Propylene Distillation TowerT-104 Acrolein Distillation TowerV-101 Reflux VesselV-102 Reflux VesselV-103 Reflux Vessel Propylene (Stream 2), steam (Stream 4),and compressed air (Stream 6) are mixed and heated to 150 oC. The resultant stream (Stream 8) is sent to a catalytic packed bed reactor where propylene and oxygen react to form acrolein. The reactor effluent is quickly quenched to 50 oC with deionized water (Stream 13) to avoid further homogeneous oxidation reactions. Stream 12 is then sent to an absorber, T-101, where it is scrubbed with water and acrolein is recovered in the bottoms (Stream 15). The off gas, Stream 14, is sent to an incinerator for combustion.Stream 15 is then distilled in T-102 to separate acrolein and propylene from water and acrylic acid. The bottoms (Stream16) consisting of wastewater and acrylic acid are sent to waste treatment. The distillate (Stream 17) is sent to T-103 where propylene is separated from acrolein and the remaining water in the system. The distillate from T-103, contains 98.4% propylene. The possibility of recycling this stream can be investigated. The bottoms (Stream 19) is then sent to T-104 where acrolein is separated from water. Stream 21 is sent to waste treatment, and the distillate (Stream 20) consists of 98% pure acrolein. 初步设计（Preliminary Design） 施工图设计Detailed Design M01V02V03P01P02P03R01R02E01 V02 P01