bahan kuliah-ppki
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PERANCANGAN PROSES KIMIA I (PPK I)
Pengampu :
Aji Prasetyaningrum ST,MSi
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PERANCANGAN PROSESTUJUAN PEMBELAJARAN:
• MEMAHAMI JENIS - JENIS PERANCANGAN PROSES
• MENGUASAI CARA – CARA / KUNCI PERANCANGAN
• MEMPERHATIKAN ASPEK LINGKUNGAN DALAM PERANCANGAN
• MENERAPKAN PRINSIP – PRINSIP DASAR DALAM PERANCANGAN
• MENGUASAI PERHITUNGAN DALAM SISTEM PERANCANGAN
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PERANCANGAN : opportunities
Perancangan produk kimia dimulai dengan identifikasi dan kreasi dari peluang potensial untuk memenuhi kebutuhan pasar dan menghasilkan keuntungan (profit)
Pembagian / klasifikasi :
1. Produk kimia dasar
2. Produk industri
3. Produk untuk konsumen
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CONTOH 2 INDUSTRI KIMIA
• PRODUK KIMIA DASAR Diproduksi dari sumber alam, contoh ethylene, acetone, vynil chlorida, difluoroethylene, ethylen glikol, dll.
• PRODUK INDUSTRIDiproduksi dari bahan kimia dasar, contoh : film, fiber, kertas.
• PRODUK KONSUMENDiproduksi dari bahan kimia dasar dan kimia industri. Contoh : industri sabun, kosmetika, obat – obatan dll
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MANUFACTURE OF CHEMICAL PRODUCT
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STEPS IN PRODUCT AND PROCESS DESIGN
• DETERMINING THE COMPOSITION
• CREATING FLOWSHEET
• CREATING CONFIGURED INDUSTRIAL AND CONSUMER PRODUCTS
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Example
• Example 1.6• Vinyl chlorida manufacture
Untuk memenuhi kebutuhan pasar direncanakan menambah kapasitas produksi vynil chlorida menjadi 800 lb/th.
Bandingkan alternatif 1,2,3 dan 4 (Seider hal. 10)
Beberapa alternatif dapat diseleksi dari sejumlah gagasan.
Dasar pemilihan proses adalah jenis dan kapasitas bahan baku, lokasi pabrik,kapasitas produksi, pemilihan proses produksi EFFISIENSI PROSES PRODUKSI
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SURVEY LITERATUR
Dapat membantu menyelesaikan permasalahan mengenai :• Informasi produk• Sifat termofisika • Flowsheet• Deskripsi peralatan• Model proses
Sumber – sumber literatur :• Stanford Research Institute (SRI)• Ensiklopedi• Handbook• Paten• Data Elektronik, dll
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Properties and Performance of Chemicals
Dasar pengelompokan :1. Product quality factor- Functional quality factor- Rheological quality factor- Physical quality factor- Sensorial quality factor
2. Product formulation- Ingredient- Emulsion- Emulsifier- Microstructure
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KREASI PROSES
Untuk menghasilkan produk, tim perancangan harus melakukan tahapan kreasi proses.
Data yang dibutuhkan : thermophysical, vapor–
liquid equilibrium, flammability, toxicity, chemical price,information for process synthesis.
Preliminary process synthesis :
meliputi pembuatan flowsheet yang mempertimbangkan reaksi, separasi, perubahan kondisi operasi suhu dan tekanan.
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PENGEMBANGAN DASAR PROSES
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DETIL PROSES SINTESIS
SISTEM KONTINU :1. Evaluasi reaktor (konversi, dll)2. Evaluasi Unit Pemisahan3. Evaluasi recycle reaktor-separator4. Evaluasi energy recovery5. Evaluasi safety terhadap lingkungan
SISTEM BATCH :Optimasi schedule operasi batch
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CHAPTER 3
PROSES KREASI
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Introduction
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PRELIMINARY DATA BASEPRELIMINARY DATA BASE
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Example Example
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Process Operation
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Synthesis Steps
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Example of Process Synthesis
• MANUFACTURE OF VYNIL CHLORIDA
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MANUFACTURE OF VYNIL CHLORIDA
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MANUFACTURE OF VYNIL CHLORIDA
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REACTION (THERMAL CRAKCING)
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TAHAPAN
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