PRARANCANGAN PABRIK MONOKLOBENZENE DARI BENZENE DAN KLORIN KAPASITAS 35000 TON/TAHUN

BHINARTA WINDU S, Budhijanto, ST, MT, Ph.D.

2014 | Skripsi | TEKNIK KIMIA

Monoklororbenzene (C6H5Cl) merupakan hasil klorinasi benzene yaitu mereaksikan gas Klorin dengan Benzen dengan bantuan katalisator Ferrychloride dalam reactor gelembung berpengaduk pada suhu masuk sebesar 80⁰C dan tekanan 2 atm. Panas reaksi yang timbul diambil dengan mengalirkan air pendingin melalui coil yang ditempatkan dalam reactor. Cairan hasil reaksi yang masih mengandung katalisator dinetralisasi dalam decanter. Cairan fase ringan decanter kemudian didestilasi dengan memperoleh hasil monoklorobenzen keluar pada bagian atas menara recycle, sedangkan bagian bawah pada menara distilasi-01 sebanyak 5168,0398 kg/jam, Diklorobenzen sebanyak 748,8478 kg/jam, dan 99% hasil dari Monoklorobenzen 99% keluar pada bagian atas menara distilasi-02 sebesar 4419,1919 kg/jam. Asam khloride yang keluar dari absorber sabagai hasil bawah sebanyak 5076,9616 kg/jam. Pabrik akan didirikan didaerah CIlegon, Jawa Barat, diatas tanah seluas 6 Ha termasuk perumahan dan perluasan. Modal tetap yang ditanam sebesar Rp 243.614.046.621,95, Modal kerja sebanyak Rp 67.917.460.740,79, Persen Return on Investmen sebelum pajak sebesar 33,43% dan sesudah pajak 16,72%. Break even point 48,13% dan shut down point 25,42%. Dilihat dari segi ekonomi, pabrik Monochlorobenzene dari Chlorine ini masih cukup menarik untuk dikaji lebih lanjut.

Monochlorobenzene (C6H5Cl) is the result of the chlorination of benzene by reacting chlorine gas and benzene, with the help of a catalyst ferrychloride in bubble stirred reactor at inlet temperature of 80⁰C and a pressure of 2 atm. The heat of reaction that arises was taken with the cooling water flowing through the coil that was placed inside reactor. The liquid reaction products that still contain the catalyst is neutralized in the decanter. Then lighter fluid phase decant distilled to obtain the results monochlorobenzene out at the top of the tower recycle, while the bottom of the distillation tower-01 as much as 5163.0398 kg/hour, as much dichlorobenzene 748,8478 kg/hour, and 99% yield of 99% monochlorobenzene out at the top of the distillation tower-02 at 4419,1919 kg/hour. Hydrochloric acid out of the absorber 5076,9616 kg/hour. The plant has capacity of 35000 ton/year and is established in Cilegon,Banten on an area of 6 hectares, including residential and extension. Fixed capital of Rp243.614.046.621,95 , working capital of Rp 67.917.460.740,79 , percent return of investment before tax of 33,43% and 16,72% after tax. Break even point is 48.13% and 25.42% shut down point. It can be concluded that this plant is feasible for further study.

Kata Kunci : monoklorobenzena, benzena, klorin, bei klorida