Perancangan Sistem Reaktor Fischer Tropsch Tipe Slurry Bed untuk Produksi Hidrokarbon dari Syngas Hasil Gasifikasi Biomassa

Abstract

Syngas from gasifier could be converted to hydrocarbon component with Fischer Tropsch (FT) process. The objectives of this research were to design Water Gas Shift (WGS) reactor, FT reactor, and hydrocyclone from syngas gasifier assisted by Aspen Plus 23.0 simulation. Simulation used to three processes, WGS reaction, FT reaction, and hydrocyclone. Ratio of H2 : CO from syngas gasifier were 1 : 2.6 converted by WGS reaction to ratio of 2.1 : 1 by plug flow reactor model, with diameter and length of reactor 10 cm and 68.8 cm. FT reaction converts syngas to hydrocarbon by stokiometri model based on Anderson Schulz Flory (ASF) distribution; from 240 m3 syngas produced 4.09 kg hour-1 methane, 0.628 kg hour-1 LPG, 1.635 kg jam-1 gasoline, 0.842 kg hour-1 kerosene, 1.449 kg hour-1 diesel, dan 2.961 kg hour-1 C20+, with diameter and height of reactor 12 cm and 1.07 m. Hydrocyclone was designed to separate wax and catalyst with separation eficiency were obtained from simulation 98.46%. Produced heat from every process decreased, begin from 395.43 kW (rice husk), 300 kW (syngas), dan 153.05 kW (hydrocarbon).