ブックタイトルProduct catalogue for petrochemical customer Jul.2010

概要

Product catalogue for petrochemical customer Jul.2010

EvaporatorEvaporation is very simple operation for concentrating the liquid. However, in the design of evaporator, not only theoretic but alsoexperiential approach is required. Especially, energy saving becomes an urgent issue recently both for environmental and economicreasons, and the economical design such as multi-effect system and MVR (Mechanical Vapor Recompression) system is demanded inthe current market.We hope our longtime experience will help customers.Falling Film EvaporatorFalling Film Evaporator has a vertical heater and vapor separator. The liquid is fedto the top of the evaporator and liquid flows down as a film.Since the holding time is very short in Falling Film Evaporator, it is suitable for heatsensitive materials.Features■Applicable for heat sensitive materials■Compact footprintCrystallizerWe have developed a unique crystallization technology and provided various kinds of crystallizer: Single Impeller type, Forced Circulationtype, Element Cooling type, Oslo type, Double Propeller type (DP type), Scraped Surface type etc.We can design and provide the most suitable crystallizing method and facility in accordance with the specified requirements of customer.DP CrystallizerDP Crystallizer is an advanced model of conventional single-impeller-typedcrystallizer and has been one of the most successful products for more than40 years.Well-considered design realizes large-volume circulation inside the vessel at lowimpeller speed.We offer DP Crystallizer as the best solution to customer’s needs of big anduniform crystal product.Features■Big and uniform crystal product■Long-term operation and easy maintenance■Manufacturable for large size unit(max: 144 m 3 )Washing waterClarifying zoneOuter impellerInner impellerDraft tubeClassifierVariable speeddrive gearStuffing boxVapor outletEvaporationchamberOutlet ofclarified liquidSpecial bearingSlurry outletClarified liquid inletPurificationIn general, customers prefer pure product with higher added-value. Today, product purity of 99.9% is very common, and sometimesmore than 99.99% is required in the market.Though distillation is widely applied in many industrial fields to remove impurities, it has big disadvantages in both investment cost andenergy consumption. It is the same in multi-stage recrystallization.To overcome these disadvantages, we developed Process as one of solutions for 99.99% grade of product purity.4C Process4C Process (Counter Current CoolingCrystallization and Purification Process) is aninnovative purification system, which combinesScraped Surface Crystallizer and PurificationColumn, without solid-liquid separationoperation.Crystal formed by Scraped Surface Crystallizeris fed to Purification Column, and the impuritiesare washed out by utilizing melting liquid ofcrystal and the perspiration effect of crystal.Features■High purity of product: 99.99% might be possible■High recovery ratio of raw materials■Low energy consumptionPDCB (Para-dichlorobenzene) Production PlantPDCB (Para-dichlorobenzene), well known as main material of mothball, is the raw material for PPS (Polyphenylene Sulfide), anengineering plastic which excels at heat resistance, chemical resistance, mechanical strength, and electrical properties. Sinceapplication of PPS is rapidly growing in electrical and electronic parts, electrical home appliance parts, and automobile parts, thedemand for PDCB was expanded growing accordingly.4C Process is apply to produce purity 99.99% of PDCB.PDCBProduction block flowCatalystSettling zoneCoolantDraft tude andimpellersC12ResidueReactionCrystallizerNo.2Jacket andscraperBenzeneCoolantCrystallizerNo.1FeedCrystallizerHCIMeltingsourcePurificationcolumnMelterHydrocyelonePurificationcolumnPurificationcoluma agitatorWaste gastreatmentProductScraped Surface CrystallizerLight cutMCBUtility facilityScraped Surface Crystallizer is a particular model of indirect cooling crystallizer.Since cooling surface is constantly scraped by metal or plastic blades, it keeps highand stable heat-transfer modulus for a long time.Drive gearTCBHeavy cutPDCB/ODCBWWTUFeatures■Efficient productivity■Stable and long-term operationRefrigerantoutletBufferJacketScraperDraft tubeCrystallizationPurificationP/O separationFlakerODCBMix-DCBPDCBImpellerTSK 4C ProcessRefrigerantinletPreliminary design scope of TSK56