PRA RANCANGAN PABRIK 1,3 BUTADIENA DARI ETHYL ALCOHOL DENGAN PROSES DEHIDROGENASI

Maulana, Atha Mardhi (2025) PRA RANCANGAN PABRIK 1,3 BUTADIENA DARI ETHYL ALCOHOL DENGAN PROSES DEHIDROGENASI. Undergraduate thesis, UPN Veteran Jawa Timur.

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Abstract

A 1,3-Butadiene plant with a capacity of 50,000 tons/year will be established in the JIPEE industrial area, Manyar District, Gresik Regency, East Java. The plant will operate 24 hours a day and 330 days a year. The 1,3-Butadiene plant uses bioethanol as its raw material from PT. Energi Agro Nusantara (Enero) with the help of Chromium Alumina catalyst for reactor 1 and Tantala Silica for reactor 2. The 1,3-Butadiene product can be used as a monomer in the polymer and synthetic rubber industries such as Styrene Butadiene Rubber (SBR), Polybutadiene Rubber (BR), and Nitrile Butadiene Rubber (NBR). 1,3-Butadiene can be produced through several processes using butane, namely the Haundry Catadine (Houdry), Philips, and Oxidative Dehydrogenation processes. In addition, 1,3-Butadiene can be produced from ethanol using the Ethanol Dehydrogenation process. This plant uses the Ethanol Dehydrogenation process using ethanol as raw material with the help of chromium alumina and tantalum silica catalysts as catalysts. 95% ethanol which is still in liquid form will be converted into gas phase using a vaporizer. Gas phase ethanol will be heated first using a heater until it reaches a temperature of 325℃ to adjust the operating temperature in the reactor. Reactor 1 uses a fixed bed multitube reactor with a chromium alumina catalyst inside and operates at a temperature of 325℃ at atmospheric pressure. In rector 1, the ethanol dehydrogenation reaction occurs to produce acetaldehyde. The output product of reactor 1 is flowed using a blower to enter reactor 2. Reactor 2 uses a fixed bed multitube reactor with a tantalum silica catalyst inside and operates at a temperature of 325℃ at atmospheric pressure. In reactor 2, a conversion reaction occurs between ethanol and acetaldehyde to 1,3 Butadiene. The product output from reactor 2 will be fed to a separator to separate hydrogen and liquid phase products. The liquid phase product will then be fed to distillation 1 to purify 1,3-butadiene to 99% of the top product. The bottom product will be fed to distillation 2 to separate water from ethanol and acetaldehyde. The bottom product, water, is fed to the water treatment process, while the top product is fed back to reactor 2 as a recycle stream.

Item Type: Thesis (Undergraduate)
Contributors:
ContributionContributorsNIDN/NIDKEmail
Thesis advisor-, Suprihatin0708056303UNSPECIFIED
Thesis advisorPanjaitan, Renova0023069502UNSPECIFIED
Subjects: Q Science > Q Science (General)
Divisions: Faculty of Engineering > Departement of Chemical Engineering
Depositing User: Atha Mardhi Maulana
Date Deposited: 03 Nov 2025 07:20
Last Modified: 03 Nov 2025 07:20
URI: https://repository.upnjatim.ac.id/id/eprint/46013

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