Dehidrasi Etanol Menggunakan Zeolit Teraktivasi Irradiasi Lampu Sinar Ultraviolet (UV Light) pada Kolom Fixed Bed

To obtain ethanol purity >99.5%, an adsorption method using Lampung Natural Zeolite (ZAL) is needed. In order to be used as a zeolite adsorbent, activation must be carried out using UV light lamp irradiation germicidal lamp 254 nm, blacklight lamp 360 nm and insect lamp 546 nm. The results of the BET characteristic test showed that the surface area of ??the non-treated zeolite was 41,331 m2/g, the germicidal lamp was 41,158 m2/g, the black light lamp was 40,399 m2/g and the insect lamp was 38,796 m2/g. The largest total pore volume was obtained from UV germicidal lamp activated zeolite 0.0690 cc/gram and the average pore size was found in insect lamp activated zeolite 35.57. After the activation of the zeolite, pellets were formed using a binder from wheat flour with a composition of 35% by weight of zeolite, then the zeolite was calcined to remove the binder that was still attached and opened the pores that were closed by the binder. The results obtained were dehydrated ethanol to increase purity using zeolite activated by UV germicidal lamp 98.69% v/v for 45 minutes, blacklight and insect lamp 98.69% v/v for 55 minutes.Untuk mendapatkan kemurnian etanol >99,5% diperlukan metode adsorpsi menggunakan Zeolit Alam Lampung (ZAL). Agar dapat digunakan sebagai adsorben zeolit harus dilakukan aktivasi dengan menggunakan irradiasi lampu sinar ultraviolet germicidal lamp 254 nm, black light lamp 360 nm dan insect lamp 546 nm. Hasil uji karakteristik BET didapatkan luas permukaan zeolit non-treatment 41,331 m2/g, germicidal lamp 41,158 m2/g, black light lamp 40,399 m2/g dan insect lamp 38,796 m2/g. Total volume pori terbesar didapat dari zeolit aktivasi sinar uv germicidal lamp 0,0690 cc/gram dan ukuran rata-rata pori terdapat pada zeolit akivasi insect lamp 35,57 Å. Setelah diaktivasi zeolit dibentuk pellet menggunakan binder dari tepung terigu dengan komposisi 35% berat zeolit, kemudian zeolit di kalsinasi untuk menghilangkan binder yang masih merekat dan membuka pori yang tertutup binder. Hasil yang diperoleh di dehidrasi etanol untuk meningkatkan kemurnian dengan menggunakan zeolit yang teraktivasi sinar uv germicidal lamp 98,69% v/v selama 45 menit, black light dan insect lamp 98,69% v/v selama 55 menit