Suraira, Mayasti and Andini, Puji (2020) Pemanfaatan Gas Buang CO2 dari Industri Gas Alam Cair (LNG) sebagai Bahan Baku Pembuatan Dimethyl Carbonate (DMC). Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Gas Karbon Dioksida (CO2) adalah salah satu gas efek rumah kaca yang jumlahnya melimpah diatmosfer. Salah satu penyumbang gas CO2 terbesar adalah industri pengolahan minyak dan gas bumi. Sumber – sumber emisi dari industri tersebut berasal dari sumber pembakaran, emisi proses dan sumber pembuangan gas (waste gas), emisi fugitif, serta sumber emisi tidak langsung. Dengan melimpahnya sumber CO2 maka potensi CO2 untuk dikonversi menjadi produk yang lebih berharga juga semakin tinggi. Pemilihan produk yang akan dibuat dengan berbahan dasar CO2 dilakukan dengan mempertimbangkan 3 aspek yaitu Engineering Performance, Economic Performance, serta Environmental, Health, and Safety Performance sehingga berdasarkan ketiga aspek tersebut dan tingginya permintaan pasar akan zat aditif, pra-desain pabrik ini akan berfokus pada pemanfaatan gas buang CO2 sebagai bahan baku pembuatan dimethyl carbonate (DMC). Pabrik DMC ini akan memanfaatkan gas buang dari amine regenerator plant acid gas removal unit PT Badak NGL Bontang, Kalimantan Timur dengan komposisi 94% gas CO2 dan sisanya impurities seperti uap air serta gas hidrokarbon. DMC dibuat dengan direct synthesis dimana metanol direaksikan dengan gas CO2 dalam rekator trickle bed berisi katalis cerium oxide (CeO2) dengan kehadiran dehydrating agent 2-cyanopiridine. Proses ini berlangsung secara optimum dalam kondisi 120 oC dan 30 bar untuk konversi yang dihasilkan sebesar 92.4%. Pra-desaian pabrik DMC ini berkapasitas 58481,08 kg/jam pengolahan bahan baku CO2. Sehingga produk DMC yang dihasilkan sebesar 40260,04 kg/jam. Berdasarkan analisis ekonomi, pabrik DMC ini akan membutuhkan Total Capital Investment sebesar 3,82 Triliun Rupiah, Total Production Cost sebesar 12,23 Triliun Rupiah/tahun, Penjualan Total sebesar 13,45 Triliun Rupiah/tahun, Break Event Point sebesar 56,85%, waktu pengembalian modal 2,96 tahun serta Internal Rate of Return sebesar 37,32% dengan bunga bank 12,5%/tahun dan inflasi 4%/tahun, sehingga pabrik DMC ini layak untuk didirikan.
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Carbon Dioxide (CO2) is one of the abundant greenhouse gases in the atmosphere. One of the biggest contributors to CO2 gas is the oil and gas processing industry. Sources of emissions from the industry come from sources of combustion, process emissions and sources of gas (waste gas), fugitive emissions, and sources of indirect emissions. With the abundance of CO2 sources, the potential for CO2 to be converted into more valuable products is also higher. The selection of products to be made based on CO2 is done by considering 3 aspects, namely Engineering Performance, Economic Performance, and Environmental, Health, and Safety Performance so that based on these three aspects and high market demand for additives, the pre-designed plant will focus on use of CO2 exhaust gas as a raw material for making dimethyl carbonate (DMC). The DMC plant will utilize exhaust gas from the amine regenerator plant acid gas removal unit of PT Badak NGL Bontang, East Kalimantan with a composition of 94% CO2 gas and the remaining impurities such as water vapor and hydrocarbon gases. DMC is made by direct synthesis in which methanol is reacted with CO2 gas in a trickle bed adhesive containing a cerium oxide (CeO2) catalyst in the presence of a 2-cyanopiridine dehydrating agent. This process takes place optimally under conditions of 120 oC and 30 bar for the resulting conversion of 92.4%. The pre-design of this DMC plant has a capacity of 58481.08 kg / hour of processing of CO2 raw materials. So that the resulting DMC products amounted to 40260.04 kg / hour. Based on economic analysis, this DMC plant will require a Total Capital Investment of 3.82 Trillion Rupiah, Total Production Cost of 12.23 Trillion Rupiah / year, Total Sales of 13.45 Trillion Rupiah / year, Break Event Point of 56.85% , the payback period is 2.96 years and the Internal Rate of Return is 37.32% with a bank interest of 12.5% / year and inflation of 4% / year, so that the DMC factory is feasible to be established.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSK 660.284 4 Sur p-1 |
| Uncontrolled Keywords: | Dimethyl Carbonate, Zat Aditif, CO2, Industri LNG, Desain Pabrik |
| Subjects: | T Technology > TP Chemical technology > TP343 Liquid and gaseous fuel T Technology > TP Chemical technology > TP359.B46 Biodiesel fuels. |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Chemical Engineering > 24201-(S1) Undergraduate Thesis |
| Depositing User: | Suraira Mayasti |
| Date Deposited: | 28 Apr 2023 07:52 |
| Last Modified: | 28 Apr 2023 07:52 |
| URI: | http://repository.its.ac.id/id/eprint/73659 |
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