DAFTAR ISI

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

LEMBAR PENGESAHAN ......................................................................................................ii

SURAT PERNYATAAN ........................................................................................................iii

KATA PENGANTAR .............................................................................................................iv

DAFTAR ISI .............................................................................................................................v

DAFTAR GAMBAR ...............................................................................................................vi

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

INTISARI ..............................................................................................................................viii

ABSTRACT .............................................................................................................................ix

BAB I PENDAHULUAN .........................................................................................................1

1.1 Latar Belakang ..............................................................................................................11.2 Tema Sentral Masalah ...................................................................................................21.3 Identifikasi Masalah ......................................................................................................31.4 Premis ............................................................................................................................41.5 Hipotesis ........................................................................................................................41.6 Tujuan Penelitian ...........................................................................................................41.7 Manfaat Penelitian .........................................................................................................5

BAB II TINJAUAN PUSTAKA ...............................................................................................6

2.1 Gas Alam .......................................................................................................................6

2.2 Gas Pengasam ...............................................................................................................6

2.2.1 Karbon Dioksida (CO2) .....................................................................................6

2.2.2 Hidrogen Sulfida (H2S) .....................................................................................7

2.3 Pemisahan CO2 dan H2S dari Gas Alam dengan Proses Absorpsi ................................8

2.3.1 Absorpsi dengan Pelarut Berbasis Amina .........................................................8

2.3.2 Absorpsi dengan Air (Aquasorption) ..............................................................10

2.4 Teknologi Penjumputan Belerang dari Gas Alam ........................................................11

2.4.1 Proses Claus ....................................................................................................11

2.4.1.1 Acid Gas Enrichment ..........................................................................13

2.4.2 Liquid Redox ...................................................................................................14

2.4.3 Bio-desulfurisasi ..............................................................................................15

2.5 Ionic Liquid .................................................................................................................17

2.5.1 1-Propil-3-Metilimidazolium Bromida ([PMIM][Br]) ....................................18

2.6 Analisa Kuantitatif Menggunakan Online Weight Measurement .................................19

2.7 Analisa Kuantitatif Menggunakan Gas Chromatography ............................................19

2.8 Penelitian Terkait .........................................................................................................21

2.8.1 Sifat Volumetrik [PMIM][Br] (Sadeghi dkk., 2009) ........................................21

2.8.2 Densitas dan Viskositas [BMIM][Br] (Tshibangu dkk., 2011) ........................21

2.8.3 Interaksi antara CO2 dan Anion dalam Ionic Liquid (Indarto dan Palgunadi, 2009) ................................................................................................................23

2.8.4 Pemisahan H2S – CO2 dengan [BMIM][Br] pada Temperatur Ruang (Handy dkk., 2014) .......................................................................................................24

BAB III BAHAN DAN METODE PENELITIAN ..................................................................26

3.1 Bahan – Bahan Penelitian ............................................................................................26

3.2 Peralatan – Peralatan Penelitian ...................................................................................26

3.3 Metode Penelitian ........................................................................................................27

3.4 Prosedur Penelitian ......................................................................................................28

3.4.1 Percobaan Utama .............................................................................................28

3.4.2 Percobaan Sampling .........................................................................................29

3.4.3 Percobaan Recovery .........................................................................................30

3.5 Analisis dan Pengolahan Data ......................................................................................31

3.5.1 Metode Analisis Online Weight Measurement ................................................32

3.5.2 Metode Analisis GC .........................................................................................32

3.6 Lokasi dan Jadwal Kerja Penelitian .............................................................................34

DAFTAR GAMBAR

Gambar 2.1 Diagram Skematik Proses Pemisahan Gas Pengasam dengan Pelarut Berbasis Amin ..................................................................................................................9

Gambar 2.2 Diagram Skematik Proses Aquasorption ..........................................................11

Gambar 2.3 Diagram Skematik Proses Claus .....................................................................12

Gambar 2.4 Diagram Skematik Proses Acid Gas Enrichment ............................................14

Gambar 2.5 Diagram Skematik Proses LO-CAT ................................................................15

Gambar 2.6 Diagram Skematik Proses Bio-Desulfurisasi ..................................................17

Gambar 2.7 Struktur [PMIM][Br] .......................................................................................19

Gambar 2.8 Skema Sistem GC ............................................................................................20

Gambar 2.9 Skema Instrumen Elektroforesis Kapiler ........................................................21

Gambar 2.10 Grafik Densitas [BMIM][Br] Murni terhadap Temperatur .............................22

Gambar 2.11 Grafik Viskositas [BMIM][Br] Murni terhadap Temperatur ..........................23

Gambar 3.1 Skema Rangkaian Alat Penyerapan Gas CO2 dan H2S ...................................27

Gambar 3.2 Diagram Alir Metode Penelitian .....................................................................28

Gambar 3.3 Diagram Alir Perhitungan Komputasi Molekular ...........................................29

Gambar 3.3 Diagram Alir Absorpsi Gas Pengasam ............................................................30

Gambar 3.4 Diagram Alir Prosedur Sampling ....................................................................31

Gambar 3.5 Diagram Alir Percobaan Recovery ..................................................................32

Gambar 3.7 Diagram Alir Proses Metode GC ....................................................................34

DAFTAR TABEL

Tabel 1.1 Konsentrasi H2S dan CO2 Pada Gas Alam di Berbagai Kilang di Indonesia ..........................................................................................................................2

Tabel 2.1 Komposisi Gas Alam dari Berbagai Sumur Pengilangan ..............................6

Tabel 2.2 Sifat Fisik CO2 .................................................................................................7

Tabel 2.3 Sifat Fisik H2S .................................................................................................8

Tabel 2.4 Perbandingan Pelarut Berbasis Amin ............................................................10

Tabel 2.5 Contoh Ionic Liquid ......................................................................................18

Tabel 2.6 Gas Pembawa dan Jenis Detektor yang Sesuai .............................................21

Tabel 2.7 Struktur Ionic Liquid beserta Kelarutan CO2, Volume Molar (VM), dan Energi Ikatan CO2-anion Menggunakan MP2/6-311+G(d) ..........................24

Tabel 3.1 Variasi dalam Penelitian ..................................................................................28

Tabel 3.2 Jadwal Kerja Penelitian ...................................................................................34