Fateha, Salesa Amilia (2026) PRA RANCANGAN PABRIK HIDROGEN PEROKSIDA (H2O2) DARI HIDROGEN (H2) DAN OKSIGEN (O2) DENGAN PROSES AUTOOKSIDASI ANTRAKUINON KAPASITAS 50.000 TON/TAHUN. Undergraduate thesis, UPN Veteran Jawa Timur.
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Abstract
Hydrogen peroxide (H₂O₂) is an oxidizing compound widely used across various industries, including pulp and paper, textiles, water treatment, chemical synthesis, and others. The demand for hydrogen peroxide in Indonesia remains high, with a portion of domestic needs still met through imports. This situation serves as the basis for designing a hydrogen peroxide plant with a production capacity of 50,000 tons/year, utilizing the anthraquinone autoxidation process. Based on an analysis of market demand and the capacities of existing hydrogen peroxide plants in Indonesia, a capacity of 50,000 tons/year was selected to help meet national demand. The production process employs 2-ethyl anthraquinone (EAQ) as the working compound, dissolved in a mixture of organic solvents comprising trimethylbenzene (TMB) and diisobutyl carbinol (DIBC). The process operates cyclically through two primary reaction stages: hydrogenation and oxidation. In the hydrogenation stage, EAQ reacts with hydrogen over a Pd/Al₂O₃ catalyst to produce 2-ethyl anthrahydroquinone (EAQH₂) with a conversion rate of 60%. This reaction takes place in a multitubular reactor at 40°C and 3 atm, with unreacted hydrogen recycled back to the reactor feed. The EAQH₂ stream is then directed to an oxidation reactor—specifically, a bubble reactor. Air, previously dried using molecular sieves, is contacted in a counter-current flow with the EAQH₂ solution at 40°C and 2.5 atm. The oxidation reaction produces H₂O₂ while simultaneously regenerating EAQ, allowing the working compound to be reused in the process cycle. The oxidation stage is designed for an efficiency of 95%. The formed H₂O₂ is subsequently separated from the working solution in an extraction tower using water as the extraction solvent. Extraction is carried out in a counter-current manner at 40°C and atmospheric pressure with an extraction efficiency of 99%, yielding an aqueous H₂O₂ solution with a concentration of approximately 45 wt%. The unextracted working solution is separated via a decanter and recycled to the mixing tank, enabling the continuous use of the working compound and solvent. The extracted H₂O₂ solution is then purified using a vacuum distillation tower. Distillation is performed at approximately 57.9°C and a pressure of 0.13 atm to increase the H₂O₂ concentration to 70 wt% while minimizing the risk of H₂O₂ decomposition. Water vapor from the top of the column is condensed, while the bottom product is cooled to 30°C before being sent to the product storage tank. A vacuum system utilizing a steam jet ejector maintains the column's operating conditions.
| Item Type: | Thesis (Undergraduate) | ||||||||||||
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| Subjects: | T Technology > TP Chemical technology > TP155 Chemical engineering | ||||||||||||
| Divisions: | Faculty of Engineering > Departement of Chemical Engineering | ||||||||||||
| Depositing User: | SALESA AMILIA FATEHA | ||||||||||||
| Date Deposited: | 01 Sep 2026 03:37 | ||||||||||||
| Last Modified: | 01 Sep 2026 03:37 | ||||||||||||
| URI: | https://repository.upnjatim.ac.id/id/eprint/59176 |
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