Nugroho, Sutra Amelia (2025) PRA RENCANA PABRIK PABRIK HIGH DENSITY POLYETHILENE (HDPE) MENGGUNAKAN ETILEN, 1-BUTENA, SIKLOHEKSANA, DAN HIDROGEN DENGAN PROSES SOLUTION KAPASITAS 65.000 TON/TAHUN. Undergraduate thesis, UPN VETERAN JAWA TIMUR.
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Abstract
A High-Density Polyethylene (HDPE) plant with a capacity of 65,000 tons/year will be established in Kosambironyok, Serang, Banten. The main raw material is ethylene (C₂H₄), which will be supplied by PT Chandra Asri Tbk. Supporting materials include 1-butene (C₄H₈) sourced from PT Pertamina Refinery Unit IV, hydrogen (H₂) obtained from PT Samator Indonesia, and cyclohexane (C₆H₁₂) along with the Ziegler-Natta catalyst (TiCl₄Al(C₂H₅)₃) which will be directly imported from PT Ziirlong, China, as the regular supplier. The HDPE product is formed through the polymerization process of ethylene, 1-butene, and hydrogen with the aid of a Ziegler-Natta catalyst based on titanium tetrachloride and TEAL, using cyclohexane as the solvent. Polymerization occurs in a stirred tank reactor (R-210). Ethylene and 1-butene are mixed in a mixer (M-170), then pumped and heated using a double pipe heat exchanger (E-172). The solid Ziegler-Natta catalyst is dissolved in cyclohexane in a mixer (M-180), then pumped to a double pipe heat exchanger (E-182) and pressurized using a compressor (G-183). The prepared raw materials are fed into the stirred tank reactor (R-210) from the top at a temperature of 160°C and a pressure of 34 atm. The reaction proceeds exothermically, and to maintain a constant temperature within the reactor, it is equipped with a cooling jacket. Ethylene and 1-butene continuously bind to the active sites of the catalyst to form polymer chains. Hydrogen from a storage tank (F-130) is fed into the reactor to terminate the polymer chain formation. The hydrogen breaks the Ti-C bond, causing the carbon chain to bind with hydrogen, thereby stopping the polymerization reaction. A chain-growth polymerization reaction occurs inside the reactor.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Subjects: | Q Science > QD Chemistry |
| Depositing User: | Sutra Amelia Nugroho |
| Date Deposited: | 23 Jun 2025 03:51 |
| Last Modified: | 23 Jun 2025 03:51 |
| URI: | https://repository.upnjatim.ac.id/id/eprint/38934 |
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