西南山城之星队设计集project summary

1、 1Project1. ProjectEthylene glycol(EG) is an important industrial chemical products, mainly for the manufacture of polyester, polyester resin, hygroscopic agent,plasticizer, 1Project1. ProjectEthylene glycol(EG) is an important industrial chemical products, mainly for the manufacture of polyester, p

2、olyester resin, hygroscopic agent,plasticizer,surfaceactiveagent,syntheticfiber,cosmeticsand explosives and used as solvent dyes, inks, preparation of engine antifreezeagentandgasdehydratingagentandmanufacturingresin, so be used flass pr, fiber, leather, adhesive wetting agent.It can produynthetic r

3、esin PET, fiber grade PETt is polyester fiber, bottle of PET for the production of mineral water bottles,etc.It also can producealkydresin, ethyltwoaldehyde, also usedasantifreeze.Exceptusedinautomobileantifreeze,butalsofor industrial cooling conveyor, commonly called as refrigerant. At the same tim

4、e, also can and water used as condensing agent.hisproject,thesynthesisofethyleneglycol(EG)andtwo(DMO) two (99.8%) of ethylene glycol () and 99.7% (DMC) was synthesized bythemethodofsynthesisgassynthesis.Thisprojectethyleneglycol (EG) production scale was located at 200000 t / year, and the productio

5、nscaleofdimethylcarbonate(DMC)waslocatedat38700T/ 2Figure1-2plant 2Figure1-2plantsCarbonylationofesterchemicalFigure1-1sflow 3Figure 3Figure2-1carbonylandesterchemicalsegmentsflowFrom out of bounds of the oxygen and nitrogen after a certain proportion, and menol togetheromethylnitriteregeneration re

6、actor (REAC-1) reaction, the reaction productomethylnitrite separation tower (t-101) separation of methyl nitrite (MN) andnol, separation of nitrous acid methyl ester (MN) and from synthetic gas CO mixedo the carbonylation reactor REAC-2 reaction to generate oxalic acid dimethyl ester (DMO). Reactio

7、n of gas-liquid mixtureo menol absorption tower (absorber), and nol countercurrent contact, absorption of dimethyl oxalate (DMO),absorptionliquidtoentertheDMOtower(T103)isolatedfrom pure dimethyl oxalate (DMO), at the top of the non condensable gas re entering the circulation gas isolated recycle ga

8、s circulation of methyl nitrite regeneration reactor (REAC-1) tower T104) isolated from the.2.2Hydrogenation 4Figure 4Figure2-2hydrogenationsflowTo enter (REAC-3) (REAC-2 prerized by theermediateproduct of oxalic acid dimethyl ester (DMO) by pump prere, from a synthesizer of hydrogen rich gas compre

9、ssor, passo the oxalic acid dimethyl ester hydrogenation reactor reaction and reaction to generate the final product of ethylene glycol (eg), deputy reactionermediates of glycolic acid methyl ester (mg) and menol,atthe same time, due to the free radical transfer will generate a small amount of propy

10、lene glycol (PG), 1,2 - butanediol (BDO) and diethylene glycol (DEG), reaction product through prere redevice enters the condenser (cool) gas-liquid separation, the separation of hydrogen is recycled to the hydrogenation reactor and separation of liquid ethylene glycol purification section.2.3Ethyle

11、neglycol 5Figure 5Figure2-3glycolrefiningsflowFrom hydrogenation section materialo coarse product separation tower (the T107), the condenser condensate gas discharged to the torch burning, condenser recovery liquid to nol tower (t108) isolated from menol, send to meAbsorbedTower(absorber)againroduce

12、dliquidtocrudeproductseparationcolumn2(T109)andcondens roduct cycletooxalicaciddimethylesterhydrogenationreactorREAC-3, reboil roducts sent to melt crystallization.2.4Theseparationsofmelt 6Figure2-5synthesis 6Figure2-5synthesisgasseparationThis pros relates to a device and method for pure carbon mon

13、oxide and hydrogen rich deep cooling method and the device includes front-end prosingunitandacryogenicseparationrefiningFigure2-4meltcrystallizationsA stream from the refining section of ethylene glycolomelting o final purification, mass fraction of 99.8% ethylene glycol (eg) can be prepared.2.5Synt

14、heticgasseparation 7unit. Innovation is the Joule Thomson effect for the whole device cooling energy consumption is low, the heat transfer effect is good, 7unit. Innovation is the Joule Thomson effect for the whole device cooling energy consumption is low, the heat transfer effect is good, s simple,

15、 heat transfer effect is ideal, and without nitrogen cyclerefrigerationandalargenumberofliquidnitrogensupplement, reduce equipment, reduce energy consumption.EnergysavingdesignandMeltA melting crystallization method preparing high purecompound device, the structure of the tower, by sand is located i

16、nside the casing of the heater and two parallel to the axis of the coupling spiral stirrer is comed of a tower body, spiral agiorand driving mechanism of transmispair connection. Tower bodys for the cooling crystallization, separation and purification section, cooling crystallization section is loca

17、tedhe uppart of the tower body, crystal fusection is locatedhe lowartofthe tower body is, separation and purification section isbet nthecoolingcrystallizationandcrystalmeltsegment;thefeed port is arranged he cooling crystallization section of the low art ofthepurifiedproductsexportisarrangedatthebot

18、tomofthecrystal meltzoneandresidualliquiddischargingport arranged hecooling crystallization of the upper; s of the tower body has twoersecting cylinders, two cylinder respectively with two spiral agicoaxial line; tower body relative to the vertical tilt angle and let the crystal along the wall downw

19、ard movement. This device runs stably and has low energy consumption, and can be prepared for 99.99% high purityanic products. 8Figure3-2hydrogen 8Figure3-2hydrogenseparationmembraneunitsFigure3-1tubetypemelt3.2Recoveryofhydrogenfromlowtemperature separation technologyhis project, the hydrogen recov

20、ery unit is set up to recover the remaininghydrogen,reducetheenergyconsumptionandreducethe s of pollutants. Can receive very good economy. 9Figure3-4 9Figure3-4cryogenicseparationflowThis pros relates to a device and method for pure carbon monoxide and hydrogen rich deep cooling method and the devic

21、e includes front-end prosingunitandacryogenicseparationrefining unit. Innovation is the Joule Thomson effect for the whole device cooling energy consumption is low, the heat transfer effect is good, s simple, heat transfer effect is ideal, and without nitrogen cycle refrigeration and a large number

22、of liquid nitrogen supplement, reduce equipment, reduce energy consumption.3.4Designandoptimizationofheatexchanger 3.3Cryogenicseparationtechnologyofsynthesis 项热公用工冷公用工元总换热积 项热公用工冷公用工元总换热积Graph3-5optimizationschemeofheattransferTochangethethermalnetworkdesigndescribedasfollows:forthe useofthereactio

23、nheatofNo.3reactor(REAC-3),weusedtheNo.3 reactortoproduceareactionheat,heatingcyclegas(35),preheating carbonylation reactoro material (20), heating nitrous acid methyl ester gas (12), as T-105 distillation tower and reboiler heat source.Forthereactionheatofthetworeactor(REAC-2),wewilluseitforthe hea

24、t source of the T-108 distillation column base of the tower. At the same time, hydrogenation reaction condensers can be as separation tower (t-107) feed, but also can be used as nitrous acid methyl ester separation tower and menol tower (t-101) and (t108) and of the reboiler heat source of the heat

25、to preheat the crude product. In addition, in order to meet the requirements of minimum heat transfer temperature difference, the matching of multi shares and cold flow is carried out through heat transfer network to achieve the effect of energy saving.EnergysavingTable3-1comparisontableofhotandcold

26、publicworksbeforeand after thermal Figure4-1generalplant Figure4-1generalplant5.The cash flow sement of the project is shownfollowing table：It can be seent the whole pros of the whole pros of the matching ofhotandcoldfluid flow isobvious, whichcansave 81.8% oftheheatconsumptionandsave41.6%ofthecooli

27、ng4.PlantThe plant layoonsiders the terrain, geological structure and other factors, the production and product characteristics and characteristics of the project and the prosflowoftheplantlayout 序号项建设建期投产投产生产生产123456%-资-费及力35-49折旧88维修8摊销用6-Table 序号项建设建期投产投产生产生产123456%-资-费及力35-49折旧88维修8摊销用6-Table5-1

28、cashflow 6.For this project, we insist on energy saving and environmental protection and harmonious development philosophy based on us to finish the Aspen Plus prodesign and simulation, the material balance calculation, heat balance, heatysis, equipment selection, pros flow chart, control pos flow chart,workshoplayout,totalplantlayout,rectifyingtower assembly, marketing and economicysis.Inaddition, wehaveabriefdescriptionofthestorage, 6.For this project, we insist on energy saving and environmental pro