Laporan Kerja Praktik PT BADAK NGL

LAPORAN UMUM KERJA PRAKTIK PT BADAK NATURAL GAS LIQUEFACTION Bontang – Kalimantan Timur

KATA PENGANTAR

Alhamdulillah, laporan kerja praktik di PT Badak NGL Bontang, Kalimantan Timur selama periode 10 Oktober 2011 s/d 8 Desember 2011 telah selesai disusun. Laporan ini dibuat untuk memenuhi salah satu syarat pendidikan S-1 di Program Studi Teknik Kimia, Fakultas Teknologi Universitas Diponegoro Semarang. Pada kesempatan ini penulis ingin mengucapkan terima kasih kepada semua pihak yakni : 1. Bapaknda Budi Eko Musprijoto, S.E dan mamahnda tercinta Erny Susilowaty, S.E., serta keluarga yang telah banyak memberi dukungan. 2. Dr. Ir. Abdullah selaku ketua jurusan Teknik Kimia Undip. 3. Ir. C Sri Budiyati selaku koordinator kerja praktik. 4. Ir. Diyono Ikhsan, S.U. selaku pembimbing kerja praktik. 5. Bapak Posma Rajagukguk selaku Training Manager. 6. Bapak Ibnu Milan Prayoga selaku Section Head Training. 7. Bapak Zudiharto selaku Process & SHE Engineering Manager. 8. Bapak Dedik Rahmat Ermawan, selaku pembimbing di PT Badak NGL. 9. Bapak Finny Langitan, Ibu Dwi Setiyani, Ibu Tely, Bapak Samsir, Bapak Muis dan Bapak Budi di Training Section. 10. Segenap karyawan Process & SHE Engineering Section PT Badak NGL: Mas Sutariyono, Mas Fahmi, Bapak M. Qirom, Bapak M. Hatta, Bapak M. Arief, Bapak Novendri, Mbak Irma, Bapak Mahendra, Bapak Sapto, Mas Akbar, Bapak Agung, Bapak Ronggo Ahmad, Bapak Nasir, Mas Kamil, Mas Dedik, Ibu Nia, Bapak Madju, Bapak Nugrahanto, dan Bapak Madel.

11. Segenap karyawan Operation Department PT Badak NGL, Bapak Iwan, Bapak Sumarno, Bapak Sulis, Bapak Asep, Bapak Widoyono, Bapak Wiyono, Bapak Heru, Bapak Yusran, Bapak Jarot, Bapak Golfred, Bapak Richard, Bapak Firman, Bapak Puji, Bapak Wipy, Bapak Jimmy, Bapak Harsono, Bapak Andi, Bapak Herman, Bapak Joko, Bapak Rizal, Bapak Didiek, Bapak Maliki, Bapak Budi, Bapak Nasib, Bapak Hendrik, Bapak Matius, Mas Ahmad, Mas Paramitha S.B.U. (L2C0 08 091) Jurusan Teknik Kimia Fakultas Teknik Universitas Diponegoro

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Akbar, Mas Teuku, Mas Richard, Mas Gani, Mas Edo dan segenap karyawan di MCR 1 yang susah diingat. Bapak Israq, Bapak Budi, dan operator MCR 2 TrainHotel.

12. Bapak Muhaimin selaku Production Planning & EC Manager. 13. Bapak Johan A.I. selaku karyawan di Production Planning section. 14. Bapak Fany Arfianto dan Bapak Sujito selaku karyawan Laboratory & Environment Control Section.

15. Bapak M.Irfan H. selaku karyawan di Inspection Section. 16. Teman-teman pendahulu kerja praktik di Badak dan teman-teman yang KP di PKT selama di Bontang: Prita, Wayan, Ardhito, Indra, Adit, Haidar, Mbak Santi, Desmaniar, Mameg, Arkie, Rahman, Ridwan.

17. Erlinda Khoirunisa selaku teman seperjuangan, sekamar dan rival kerja praktik. 18. Teman-teman di Tekim Undip angkatan 2008 Eksis atas semua doa dan dukungannya dalam bentuk apapun. 19. Teman-teman foreigners, Baroos, Sumbu, Elena, Daniel, dan Samuel dari

Angola, Gomez yang pulang duluan, juga mas-mas Jepang, Mitsu, Atsu, Koba, Kei, Taka, Sakabe, Ikeda dan Kaki. 20. Segenap karyawan di apartment Nam-Nam (Bapak Udin, Bapak Holoson, dan Ibu EV), Meshall (Mas Bambang, Bapak Ketut, dan Bapak Didik), dan Supir antar jemput atau shuttle (Bapak Rahmad, Bapak Johnson, Bapak Aris,Bapak Udin dan Bapak Taufik).

21. Dan pihak-pihak yang tidak dapat disebutkan satu per satu. Penulis sadar bahwa penulisan laporan ini masih belum sempurna. Untuk itu

penulis mengharapkan kritik dan saran yang membangun untuk menyempurnakan laporan ini. Semoga laporan ini bermanfaat bagi semua pihak. Bontang, Desember 2011

Penulis Paramitha S.B.U. (L2C0 08 091) Jurusan Teknik Kimia Fakultas Teknik Universitas Diponegoro

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DAFTAR ISI

KATA PENGANTAR .......................................................................................................... i DAFTAR ISI ....................................................................................................................... iii DAFTAR TABEL ............................................................................................................... vi DAFTAR GAMBAR ......................................................................................................... vii

BAB I PENDAHULUAN .....................................................................................................1 I.1 Latar Belakang. ..........................................................................................................1 I.2 Kegiatan Kerja Praktik ...............................................................................................2 I.2.1 Waktu dan Tempat Pelaksanaan Kerja Praktik ..............................................2 I.2.2 Tujuan Kerja Praktik.......................................................................................2 I.2.3 Ruang Lingkup Kerja Praktik .........................................................................2 I.2.4 Tugas Kerja Praktik ........................................................................................2 I.2.4.1 Tugas Umum ....................................................................................2 I.2.4.2 Tugas Khusus ....................................................................................3 I.3 Sistematika Laporan .................................................................................................3

BAB II TINJAUAN UMUM ................................................................................................4 II.1 Sekilas Gas Alam......................................................................................................4 II.2 Produksi LNG di Indonesia ......................................................................................5 II.3 Proses Pencairan Gas Alam ......................................................................................6 II.4 Pangsa Pasar LNG ....................................................................................................8

BAB III LOKASI DAN TATA LETAK PABRIK ............................................................9 III.1. Lokasi Pabrik..........................................................................................................9 III.2. Tata Letak Pabrik .................................................................................................10

Paramitha S.B.U. (L2C0 08 091) Jurusan Teknik Kimia Fakultas Teknik Universitas Diponegoro

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BAB IV STRUKTUR ORGANISASI PERUSAHAAN. .................................................12 IV.1 Production Division ..............................................................................................16 IV.1.1 Operation Department ................................................................................16 IV.1.2 Maintenance Department............................................................................18 IV.1.3 Technical Department .................................................................................21 IV.2 Business Support Division ....................................................................................24 IV.2.1 Human Resources and Development Department ......................................24 IV.2.2 Information Technology Department ..........................................................25 IV.2.3 Procurement and Contract Department .....................................................25 IV.2.4 Services Department ...................................................................................25 IV.3 Accounting Operation and Control Department .................................................26 IV.4 Internal Audit Department ....................................................................................26 IV.5 Safety & Health Environment Quality Department .............................................26 IV.6 Corporate Strategic Planning and Business Development Department ...............26 IV.7 Corporate Secretary Department..........................................................................26

BAB V DESKRIPSI PROSES. ..........................................................................................27 V.1 Plant-1 : Unit Pemisahan CO2................................................................................28 V.2 Plant-2 : Unit Penghilangan H2O dan Hg ..............................................................33 V.3 Plant-3 : Unit Fraksinasi ........................................................................................37 V.3.1 Scrub Column (3C-1) ...................................................................................38 V.3.2 De-ethanizer Unit (3C-4) ............................................................................40 V.3.3 De-propanizer Unit (3C-6)...........................................................................42 V.3.4 De-butanizer (3C-8) .....................................................................................43 V.4 Plant-4 : Unit Pendingin (Refrigerasi) ...................................................................45 V.4.1 Garis Besar Uraian Proses di Propane Refrigerant Sistem..........................46 V.4.2 Garis Besar Uraian Proses di MCR Sistem ..................................................50 V.5 Plant-5 : Unit Pencairan LNG ................................................................................52


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BAB VI SISTEM UTILITAS ............................................................................................56 VI.1 Plant-29 : Penyedia Gas Nitrogen. .......................................................................56 VI.2 Plant-31 : Penyedia Steam dan Tenaga Listrik .....................................................58 VI.2.1 Pembangkit Steam ...............................................................................58 VI.2.2 Pembangkit Tenaga Listrik .................................................................61 VI.3 Plant-32 : Penyedia Air Pendingin. ......................................................................63 VI.4 Plant-33 : Penyedia Air Pemadam Kebakaran .....................................................65 VI.5 Plant-35 : Penyedia Udara Bertekanan .................................................................67 VI.6 Plant-36/48/49 : Pengolahan Air dan Penyedia Air Umpan Boiler. .....................68 VI.7 Plant-48 : Pengolahan Air Limbah .......................................................................71

BAB VII STORAGE AND LOADING ...............................................................................73 VII.1 Pendahuluan ........................................................................................................73 VII.2 Plant-15 : LPG Refrigeration. .............................................................................73 VII.3 Plant-16 : Condensate Stabilizer.........................................................................75 VII.4 Plant-17 : LPG Plant ...........................................................................................76 VII.5 Plant-19 : Blow Down and Flare System. ...........................................................78 VII.6 Plant-20 : MCR, Condensate & Diesel Fuel Tank ..............................................79 VII.7 Plant-21 : KOD....................................................................................................80 VII.8 Plant-24 : Penyimpanan dan Pengapalan LNG. ..................................................81 VII.9 Plant-26 : LPG Bottling .......................................................................................84 VII.10 Plant-34 : Waste Water Treatment Plant...........................................................85 VII.11 Plant-38 : Interconnecting Piping System .........................................................85 VII.12 Plant-39 : Penyedia Gas Nitrogen .....................................................................86 VII.13 Plant-56 : Pipe Line and Pig Trap ....................................................................87

BAB VIII PENUTUP .........................................................................................................89

DAFTAR PUSTAKA .........................................................................................................90


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DAFTAR TABEL

Tabel VI.1 Spesifikasi Produksi Nitrogen Plant-29 .............................................................56 Tabel VI.2 Jenis Uap yang Dihasilkan Pada Sistem Utilitas ...............................................58 Tabel VI.3 Pembagian Tenaga Uap .....................................................................................59 Tabel VI.4 Sarana Pembangkit Tenaga Listrik Utilities - I..................................................62 Tabel VI.5 Sarana Pembangkit Tenaga Listrik Utilities - II ................................................62 Tabel VI.6 Jenis Generator Pada Plant-32 ...........................................................................64 Tabel VI.7 Sarana Penyediaan Air Pemadam Kebakaran Utilitas I .....................................66 Tabel VI.8 Sarana Penyediaan Air Pemadam Kebakaran Utilitas II ..................................66 Tabel VI.9 Sarana Penyedia Udara Bertekanan ...................................................................67 Tabel VI.10 Data Aliran dari Spesifikasi Desain Proses......................................................68 Tabel VI.11 Kapasitas Pengolahan Air & Umpan Ketel ......................................................71 Tabel VI.12 Kapasitas Pengolahan Air Minum ..................................................................71


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DAFTAR GAMBAR

Gambar II.1 Skema Proses APCI ...........................................................................................6 Gambar II.2 Skema Proses Conoco – Philips.........................................................................7 Gambar III.1 Lokasi Bontang dan Letak Sumur Gas Alam di Kalimantan Timur ..............10 Gambar IV.1 Kepemilikan Saham di PT. Badak NGL ........................................................12 Gambar IV.2 Skema Bisnis LNG di PT Badak NGL...........................................................13 Gambar IV.3 Struktur Organisasi PT. Badak NGL..............................................................15 Gambar IV.4 Struktur Organisasi Product DiVson ..............................................................16 Gambar V.1 Diagram alir proses pencairan gas alam di PT Badak NGL Bontang. ............27 Gambar V.2 Diagram Alir Plant-1 CO2 Absorption Unit ...................................................29 Gambar V.3 Diagram Alir Plant-2 Dehydration and Mercury Removal Unit. ....................33 Gambar V.4 Diagram Alir Plant-3 Fractionation Unit .......................................................37 Gambar V.5 Diagram Alir Scrub Column ............................................................................38 Gambar V.6 Diagram Alir De-Ethanizer .............................................................................40 Gambar V.7 Diagram Alir De-Propanizer ...........................................................................42 Gambar V.8 Diagram Alir De-Butanizer .............................................................................43 Gambar V.9 Diagram Alir Plant-4 Refrigeration Unit : Propane Refrigeration ................46 Gambar V.10 Diagram Alir Plant-4 Refrigeration Unit : MCR System ..............................50 Gambar V.11 Diagram Alir Plant-5 Liquefaction Unit .......................................................53 Gambar VI.1 Cooling Water System ....................................................................................65 Gambar VII.1 Simplified LPG Storage Tanks ......................................................................77 Gambar VII.2 Simplified Dry Flare .....................................................................................78 Gambar VII.3 Simplified KOD .............................................................................................80


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Laporan Kerja Praktik PT BADAK NGL

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