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    ANALISA PULP LOSS DAN PENGARUH BAHAN CHEMICAL

    RETENTION AID DAN AKD TERHADAP PULP LOSS DALAM PROSES

    PEMBUATAN KERTAS

    LAPORAN KERJA PRAKTEK

    Disusun oleh :

    1. KHOIRUN NISA SAHID ( 3335120351)

    2. SYAHRI RAHMAN ( 3335120701 )

    JURUSAN TEKNIK KIMIA – FAKULTAS TEKNIK

    UNIVERSITAS SULTAN AGENG TIRTAYASA

    CILEGON - BANTEN

    2015

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    Analisa Pulp Loss dan Pengaruh Chemical Retention Aid dan AKD

    terhadap Pulp Loss dalam Proses Pembuatan Kertas

    Laporan Kerja Praktek ini disusun sebagai syarat kelulusan

    mata kuliah Kerja Praktek dan salah satu syarat

    menempuh sarjana Strata I Teknik Kimia Universitas Sultan AgengTirtayasa

    Cilegon – Banten

    Disusun oleh :

    1. KHOIRUN NISA SAHID ( 3335120351 )2. SYAHRI RAHMAN ( 3335120701 )

    JURUSAN TEKNIK KIMIA – FAKULTAS TEKNIK

    UNIVERSITAS SULTAN AGENG TIRTAYASA

    CILEGON - BANTEN

    2015

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    DAFTAR ISI

    Halaman

    HALAMAN JUDUL ........................................................................................................ i

    HALAMAN PENGESAHAN JURUSAN ..................................................................... ii

    KATA PENGANTAR....................................................................................................iii

    DAFTAR ISI................................................................................................................... iv

    DAFTAR TABEL ......................................................................................................... vii

    DAFTAR GAMBAR....................................................................................................viii

    BAB I PENDAHULUAN

    1.1. Latar Belakang Perusahaan................................................................ .................. 1

    1.2. Sejarah Perusahaan .............................................................................................. 1

    1.3. Tujuan Kerja Praktek ................................................................ ........................... 3

    1.4. Ruang Lingkup kerja Praktek .............................................................................. 4

    1.5. Waktu dan Tempat pelaksanaan Kerja Praktek ................................................... 4

    1.6. Tata Letak Pabrik................................................................................................. 4

    1.7. Visi dan Misi Perusahaan..................................................................................... 6

    1.8. Struktur Organisasi Perusahaan ........................................................................... 7

    BAB II DESKRIPSI PROSES

    2.1 Sejarah Umum Kertas ................................................................ ........................ 13

    2.2 Proses Produksi ................................................................ .................................. 13

    2.2.1 Stock Preparation..................................................................................... 13

    2.2.2 Paper Machine ................................................................ ......................... 16

    2.2.3 Finishing –  Converting ............................................................................ 21

    2.3 Bahan Baku Produksi......................................................................................... 22

    2.4 Bahan Penunjang Produksi ................................................................ ................ 26 2.4.1 Filler......................................................................................................... 26

    2.4.2 AKD ( Alkyl Ketene Dimer )................................................................... 27

    2.4.3 Cationic Starch......................................................................................... 27

    2.4.4 OBA ( Optical Brightning Agent )........................................................... 27

    2.4.5 Dyes ......................................................................................................... 27

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    2.4.6 SSA (Surface Sizing Agent ) ................................................................... 28

    2.4.7 Retention Aid ........................................................................................... 28

    2.4.8 Biocide ..................................................................................................... 28 2.4.9 Defoamer................................................................ .................................. 28

    Halaman

    2.4.10 PVA ( Polyvinyl Alkohol ) .................................................................... 29

    2.4.11 Tapioka ................................................................ .................................. 29

    2.4.12 Enzym .................................................................................................... 29

    2.4.13 NaOH ..................................................................................................... 29

    2.4.14 NaOCl .................................................................................................... 29

    2.4.15 Wax Emulsion........................................................................................ 30

    2.4.16 Flokulan ................................................................ ................................. 30

    2.4.17 Allum ( Al2(SO4)3.18H2O ).................................................................... 30

    2.4.18 CaCl2 ( Calcium Chloride ).................................................................... 31

    2.4.19 Zinc Sulfat ( ZnSO4 ) ............................................................................. 31

    2.4.20 BOC ( Boli Out Chemical ) ................................................................... 31

    2.5 Bahan Bakar....................................................................................................... 34

    2.6 Pengawasan Mutu Bahan ................................................................................... 34

    2.6.1 Pengawasan Mutu Bahan Baku ............................................................... 35

    2.6.2 Pengawasan Mutu Bahan dalam Proses................................................... 35

    2.6.3 Pengawasan Mutu Produk........................................................................ 37

    BAB III ALAT PROSES DAN INSTRUMENTASI

    3.1 Spesifikasi Alat Unit Stock Preparation ............................................................ 39

    3.1.1 Pulper ....................................................................................................... 39

    3.1.2 Pulper Chest ............................................................................................. 40

    3.1.3 Magnetic Stirrer ................................................................ ....................... 40

    3.1.4 Double Disc Refiner ................................................................................ 40

    3.1.5 High Centrifugal Cleaner ......................................................................... 41

    3.1.6 Flow Tank ................................................................................................ 42

    3.1.7 Mixing Chest............................................................................................ 42 3.1.8 Medium Chest ................................................................ .......................... 42

    3.1.9 Machine Chest ................................................................ ......................... 42

    3.1.10 Settling Tank................................................................ .......................... 43

    3.1.11 Shower Pit.............................................................................................. 43

    3.2 Spesifikasi Alat Unit Paper Machine ................................................................. 44

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    3.2.1 Fan Pump ................................................................ ................................. 44

    3.2.2 Centrifugal Cleaner.................................................................................. 44

    3.2.3 Horizontal Screener ................................................................ ................. 44 3.2.4 Pack Pulper .............................................................................................. 45

    3.2.5 Head Box ................................................................ ................................. 45

    3.2.6 Screen wire ( Plastic wire ) ................................................................ ...... 46

    3.2.7 Press Part.................................................................................................. 48

    Halaman

    3.2.8 Dryer ........................................................................................................ 48

    3.2.9 Size Press ................................................................ ..............