Pabrik Dimetil Eter (DME) Dari Limbah Polietilen Tereftalat (PET) Dengan Proses Direct Synthesis

Zulhilmi, Muhammad and Wiyono, Fajar (2014) Pabrik Dimetil Eter (DME) Dari Limbah Polietilen Tereftalat (PET) Dengan Proses Direct Synthesis. Diploma thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Impor LPG menunjukkan peningkatan tiap tahunnya, maka direncanakan mendirikan pabrik DME untuk memenuhi kebutuhan bahan bakar gas nasional. DME memiliki fungsi utama sebagai pengganti LPG konvensional. Rencana lokasi pendirian pabrik dipilih Sepanjang, Sidoarjo, karena ketersediaan bahan baku, kemudahan transportasi dan sumber air. DME dari limbah PET dibuat dengan proses sintesa langsung melalui 6 tahap. Tahap pertama untuk memperkecil ukuran dan menghilangkan impurities. Tahap kedua untuk mengubah bahan baku dari fase padat menjadi fase gas pada temperatur 950ºC dan tekanan 34 bar. Tahap ketiga untuk menambah kuantitas gas H2 dengan proses water gas shift reaction. Tahap keempat yaitu memisahkan gas dan H2O sisa pada alat separator. Tahap kelima yaitu mereaksikan CO dan H2 pada temperatur 250ºC dan tekanan 50 bar untuk menghasilkan DME. Tahap terakhir yaitu pemurnian DME dengan cara distilasi. Pabrik DME bekerja secara kontinyu dan beroperasi selama 330 hari/tahun dengan kapasitas produksi 10.000 ton/tahun. PET yang dibutuhkan sebesar 18.939 kg/hari. Kebutuhan utilitasnya adalah air sanitasi, air umpan boiler, air proses dan air make up masing-masing sebesar 7,17; 294,646; 1099,352 dan 58,929 m3/jam. ===================================================================================== Import of LPG indicates an increase every year, it is planned to set up factories to fulfill the national needs of the LPG. DME has a primary function as a substituent for LPG. Location plan of the establishment of the factory in Sepanjang, Sidoarjo, because of the availability of selected raw materials, ease of transportation and water source. DME from waste PET is made with the direct synthesis process through 6 stages. The first stage to minimize the size and eliminate impurities. The second stage is to change the material phase from solid to gas at temperature of 950 C and a pressure of 34 bar. third stage to increase the amount of H2 by water gas shift reaction. The fourth stage is separating the gas from the water. The fifth stage is reacting CO and H2 to produce DME at temperature 250 C and 50 bar pressure. The last stage is DME purification by distillation process. The DME factory worked continuously and operates over 330 days/year with production capacity 10,000 tons/year. PET waste is needed 18,939 kg/day. Needs of utility is the water sanitation, boiler feed water, process water and water make up each amounting to 7.17; 294,646; 1099,352 and 58,929 m3/hour.

Item Type: Thesis (Diploma)
Additional Information: RSK 661.84 Zul p
Uncontrolled Keywords: DME; limbah PET; direct synthesis; waste PET; Direct synthesis
Subjects: T Technology > TP Chemical technology
Divisions: Faculty of Industrial Technology > Chemical Engineering > (D3) Diploma
Depositing User: Mrs Anis Wulandari
Date Deposited: 22 May 2017 08:23
Last Modified: 22 May 2017 08:23
URI: http://repository.its.ac.id/id/eprint/41344

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