presentasi perancangan proses kimia 1
TRANSCRIPT
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PERANCANGAN PROSES KIMIA(CHEMICAL PROCESS DESIGN)( )Kode Mata Kuliah : TKK 345 (New Curriculum) Beban : 3 SKS
Section 2 oleh: Dr Istadi ST MTSection 2 oleh: Dr. Istadi, ST, MT
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Lit tLiteratures:Seider, W.D., J.D. Seider, Lewin, D.R., 2004, Product & Se de , . ., J. . Se de , e , . ., 004, oduc &Process Design Principles: Synthesis, Analysis and Evaluation, John Wiley & Sons, Inc., New YorkTurton, R., Bailie, R.C., Whiting, W.B., Shaeiwitz, J.A., 2003, Analysis, Synthesis and Design of Chemical Process Prentice Hall PTR New JerseyProcess, Prentice Hall PTR, New Jersey
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TIKTIKMampu memahami prinsip dasar dan tahap‐tahap perancangan proses kimia.p g pMampu memahami dam menjelaskan struktur dan sintesis proses pada flow diagram.Mampu memahami dan menjelaskan rule of tumb sintesis Mampu memahami dan menjelaskan rule of tumb sintesis proses kimiaMampu memilih system separator dan system reactor pada proses kimiaproses kimiaMampu menggunakan software/simulator untuk sintesis dan simulasi proses kimiaMampu memahami dan menjelaskan dasar‐dasar sintesis Mampu memahami dan menjelaskan dasar‐dasar sintesis jaringan pemanas, reaktor, dan separator.Mampu mendesain jaringan pemanas, reaktor, dan separator dengan efifiensi yang tinggidengan efifiensi yang tinggi.
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SILABUSSILABUSPrinsip Dasar dan Tahap‐tahap Perancangan Proses Kimiap p p gStruktur dan Sintesis Process Flow DiagramHeuristic/Rule of Thumb Sintesis ProsesPemilihan Sistem Separator Pemilihan Sistem ReaktorSi l /S f k Si i d Si l i PSimulator/Software untuk Sintesis dan Simulasi ProsesDasar‐dasar Sintesis Jaringan PemanasDesain Jaringan Reaktor SeparatorDesain Jaringan Reaktor‐SeparatorKonsep Integrasi ProsesStudi Kasus.Studi Kasus.
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Rancangan Kuliah Section 2Rancangan Kuliah Section 21. Dasar‐dasar Penggunaan CHEMCAD/HYSYS2. Perancangan Sistem/jaringan Reaktor3. Tugas 1 dan Pembahasannya
Si /j i 4.Perancangan Sistem/jaringan Pemanas5. Perancangan Sistem/jaringan Separator & Recycle6 Tugas 2 dan Pembahasannya6.Tugas 2 dan Pembahasannya7. Studi Kasus8.Ujian Section 28.Ujian Section 2
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SimulasiSimulasi ProsesProses ????SimulasiSimulasi ProsesProses ????
S t h t k l k k b• Suatu usaha untuk melakukan percobaan, analisa, optimasi, dan karakterisasifenomena-fenomena dalam industrifenomena fenomena dalam industriproses tanpa melakukan langsung dilapangan.
• Memindahkan proses yang berlangsung dipabrik ke dalam perangkat lunakkomputerkomputer.
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SEJARAH SIMULATORCa 1960 Research Simulators (PACER from Purdue University)1965 Industry in house program (CHEOPS from Chevron)1970 FLOWTRAN (from Monsanto)
DESIGN/2000 (from Chemshare)DESIGN/2000 (from Chemshare)FLOWPACK, CAPES.
1975 PROCESS (from Simulation Sciences/SimSci)1980 ASPEN (from MIT and DOE) ASPENTECH1981 PRO/II (from Simulation Sciences)
SPEED UP for dynamic simulationQUASILIN ADVENT (from England)HYSIM (from Hyprotech)HYSIM (from Hyprotech)CHEMCAD (from Chemstations Inc.)
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SEJARAH SIMULATOR (C )SEJARAH SIMULATOR (Cont.)Awal 1990 Advanced application (pinch analysis, conceptual
design)ENPRO (for environmental process)MAX (from ASPENTECH)MAX (from ASPENTECH)PROvision (from SimSci)
1995 Pengembangan ASPENPlus dan PRO/IIHYSIM became HYSISV d d l i b k di ifik iVendor‐vendor mulai mengembangkan diversifikasi
produkAkhir 1990‐an Penggabungan perusahaan‐perusahaan software development
SimSci dibeli oleh InvenSys‐ SimSci dibeli oleh InvenSys‐Hyprotech oleh AEATech‐ dan akhirnya diakuisisi oleh ASPENTECH
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Apa yang dapat dilakukan dengan ChemCAD? (cont’d)
PENDIDIKAN‐Memberikan gambaran nyata kepada mahasiswa mengenaig y p gkarakteristik sebuah proses dan unit operasi.‐Membantu pemahaman mahasiswa terhadap konsep dasarsuatu proses melalui simulasi.
b k b k d h h d k‐Memberikan gambaran kepada mahasiswa terhadap aspek‐aspek praktis industri kimia melaluisimulasi suatu industri.Mengiring imajinasi mahasis a pada proses ang sebenarn a‐Mengiring imajinasi mahasiswa pada proses yang sebenarnyaterjadi.‐Menarik perhatian mahasiswa karena kecanggihan danmodernitas simulatormodernitas simulator.‐ Sebuah tools untuk melengkapi kompetensi lulusan teknikkimia.
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Contoh mata kuliah yang dapat menggunakan simulator
Azas Teknik Kimia (Neraca Massa dan Azas Teknik Kimia (Neraca Massa dan Energi)TermodinamikaO i T k ik Ki i (P i h Operasi Teknik Kimia (Pemisahan Difusional, Mekanika Fluida)Alat‐alat industri Kimia
Azas Teknik Kimia 29%Operasi Teknik Kimia 31%
Perpindahan panas (HE)Teknik Reaksi KimiaPengendalian Proses
Pemisahan Difusional 57%Mekanika Fluida 7%Termodinamika Teknik Kimia 36%Teknik Reaksi Kimia 18%g
Tugas Akhir ‐‐> Prarancangan Pabrik Pengendalian Proses 52%Perpindahan Panas 13%Prarancangan Pabrik 94%
Dahm, et. al (2002)Dahm, et. al (2002)
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APLIKASI CHEMCADAPLIKASI CHEMCADDistilasi/ekstraksi/absorpsi(Batch dan Kontinyu)
• Perhitungan kesetimbangan fasa uap-cair (VLE)(Batch dan Kontinyu)
Reaksi (Batch dan Kontinyu)Proses‐proses elektrolitikPerhitungan sifat fisik dantermodinamika
fasa uap cair (VLE), uap-cair-cair (VLLE), cair-cair (LLE).
• Perhitungan ukuran peralatan (equipment sizing)termodinamika (equipment sizing)
• Perhitungan perpindahan panas
• Piping system• Heat exchanger networkHeat exchanger network • Utility network• Safety analysis
• Neraca massa dan energi• Plotting• Perkiraan harga peralatang p• Solid handling
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DATA DATA ENGINEERINGDATA‐DATA ENGINEERING
Bank data untuk sifat fisikdan termodinamika (lebihdari 2000 bahan kimia danelektrolit)Bank data BIP’s untukpersamaan koefisienpersamaan koefisienaktivitasBank data elektrolitB k d t i t k iBank data interaksifasa uap
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ChemCAD 5 5 (chemicals)ChemCAD 5.5 (chemicals)2150 senyawa kimia5 yOrganik, an‐organik, elektrolit, bahan kimia formulasi (dengan merk dagang)Fasa (gas, cair, padat)Dapat ditambahkan senyawa lain (yang belum ada)Dapat dieditDapat dieditMetode searching nama (kimia/dagang), rumus molekul, nomor urut (ChemCAD library), ( y)
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METODE TERMODINAMIKAlK‐Value
> Hidrokarbon : Peng‐Robinson, Soave‐Redlich‐Kwong (SRK), K‐chart, API Soave, dll> Chemicals : NRTL, UNIFAC, Wilson, UNIQUAC, Margules, Van Laar, dllg> Polymers : UNIFAC for polymers, Florry‐Huggins> Sistem khusus/spesial : Amines, sour water, dll> Lain‐lain : Henry,s gas law, vapor pressure, K‐tables
EntalphiEntalphi> Hydrocarbon dan petrokimia : BWRS, Peng‐Robinson, Soave‐Redlich‐Kwong (SRK), Lee‐Kessler, dll
> Chemicals : Latent heat, integral heat of solution> Water : steam tables> Lain‐lain : amines, polynomial, H‐tables.
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Satuan OperasiSatuan OperasiReaktor
Reaktor stoikiometriReaktor kesetimbangan
GeneralGeneralMetanasiShift konversi
R k GibbReaktor GibbsReaktor kinetik
CTSRPFR
Reaktor batch
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Gas/Vapor Liquid SeparationGas/Vapor‐Liquid SeparationDistilasiDistilasi
ShortcutRigorousgTower plus (side stream, multiple feed, pump around, intercooling)Distilasi reaktifDistilasi reaktif
AbsorpsiFlashFlashComponent separator
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Perpindahan PanasPerpindahan PanasHeat Exchanger (one‐sided, two sided)eat c a ge (o e s ded, t o s ded)Heat Exchanger (shell and tube, double pipe, air‐colled, plate and frame)Heat exchanger (sensible heat, latent heat, condensation, evaporation)Furnace
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SOLID HANDLINGSOLID HANDLINGCrystallizeryCentrifugal filterCycloneWasherVenturi ScrubberBaghouse filterScreenH d lHydrocycloneVaccum filterElectrolitic PrecipitatorDryerDryerSedimentation separatorCrusher/grinder
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Pengaliran BahanPengaliran BahanPompao paFeed and ProductKompresor/Ekspanderp / pPipeStreamValveMixer/divider
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EQUIPMENT SIZINGEQUIPMENT SIZINGTray (sieve, valve, bubble cap)Packing (random and stuctured)PipesPipesHeat Exchanger (Shell and Tube, Air‐cooled, Plate and Frame, double i )pipe)
Pressure vesselsOrificesControl valvesRelief valves
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PlottingPlottingTP‐xy diagramy d ag aPhase envelopeResidue curveBinodal plotHeat curveComposite curveDistillation curveDynamic curve
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DYNAMIC SIMULATIONBatch distillationBatch reactorsBatch reactorsPID controllerControl valveControl valveDynamic vesselRAMP controllerRAMP controller
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SOFTWARE ???Just TOOLS………
It’s useless to operate withoutIt s useless to operate without…….Chemical Engineer’s mind andSense of engineeringSense of engineering
Good process knowledge and experiences
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METHANOL CO-PRODUCTION IN AMMONIA PLANT
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CARBONDIOXIDE REMOVAL WITH LEAN BENFIELD
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FORMALDEHYDE PRODUCTION FROM METHANOL OXIDATION
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DASAR‐DASAR PENGGUNAAN CHEMCAD / HYSYSCHEMCAD / HYSYS
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Flash & RecycleFlash & Recycle
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DISTILLATION COLUMNDISTILLATION COLUMN
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Shortcut Column untuk Prediksi J l h St d F d StJumlah Stage dan Feed Stage
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Shortcut Column SpecificationShortcut Column Specification
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Plate Column from Shortcut ColumnColumn
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Plate Column SpecificationPlate Column Specification
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