Rancang Bangun Steam Methane Reformer untuk Produksi Syngas Kaya Akan Hidrogen dari Syngas Hasil Pirolisis Biomassa Tempurung Kelapa Kapasitas 10 Kg

Abstract

A reliable, efficient energy supply system, reducing greenhouse emissions, minimizing global warming and not damaging the environment is the goal of energy use. Most domestic industries and activities depend on fossil fuels whose energy sources are non-renewable, reserve supplies are limited and produce toxic gases. Therefore, various alternative solutions have been offered by some researchers. Biomass is an alternative energy source that can produce energy where hydrogen is an energy source produced from biomass that has low emissions and high efficiency . Hydrogen is not a natural resource, therefore hydrogen must be produced through several processes with various technologies. This research aims to obtain an integrated pyrolysis unit process flow system with SMR by simulating and experimental modeling, testing the ability of the SMR system, and analyzing efficiency Reformer system with raw materials in the form of shell pyrolysis output syngas. This research was conducted in a simulation using AspenPlus and Solidworks software and was carried out experimentally. The results of integrated SMR simulation modeling with slow pyrolysis with a working temperature of 500oC and a pressure of 1.0325 bar were obtained. Pyrolysis output mass percentage is H2 by 25.45%, CH4 is 13.56%, CO2 is 21.66%, CO is 2.93% and H2O is 36.30%. In the SMR reactor there is a reaction between syngas and water vapor with S/C 2, and obtained H2 results of 42.88%, CH4 of 0.00%, CO2 of 14.04%, CO of 10.69% and H2O of 32.32%. In the WGS reactor there is a reaction between CO and H2O with H2 output of 50.36%, CH4 as much as 0.00%, CO2 as much as 21.53%, CO was 3.21% and H2O was 24.83%. Sensitivity tests are carried out to determine the effect of independent variables on the process and work results in the system. The results of the experimental analysis of SMR integrated with pyrolysis found a ratio of the percentage of O2 content of pyrolysis output of 2.9 %vol after the SMR content increased after addition of H2O vapor to 14%vol. The EX value of pyrolysis output is 40% in LEL, but after passing SMR it increases by 151% in UEL. The H2S and CO content did not change at all %volume, the H2S content was 0.0194 %vol and the CO content was 0.1285 %vol. The thermal efficiency produced in the simulation process was 92.60%, while in experimental it was 67.2%. It can be concluded that the greatest efficiency is in the simulation because the work process is in a steady state condition.