Microwave Assisted Hydrolysis of Oil Palm Empty Fruit Bunch: Effect of Wave Distance Sources, Power, Time and Acid Concentration

1st International Symposium of Indonesian Chemical Engineering 2018

Madinah, I.^1 ; Sarah, M.^1^2

Departement of Chemical Engineering, Universitas Sumatera Utara, Padang Bulan Medan, Indonesia^1

Sustainable Energy and Biomaterial Centre of Excellent, Universitas Sumatera Utara, Indonesia^2

关键词: Acid concentrations;    Irradiation time;    Microwave assisted hydrolysis;    Microwave energies;    Microwave power;    Microwave power levels;    Oil palm empty fruit bunch;    Series reactors;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/543/1/012065/pdf
DOI  :  10.1088/1757-899X/543/1/012065

来源: IOP

【 摘 要 】

Hydrolysis of EFB's fiber was carried out using sulfuric acid in two series reactors each operates under microwave irradiation. First reactor operates at various microwave power level (medium, medium high and high), irradiation time (5, 7.5 and 10 minutes) and acid concentration (0.5, 1 and 1.5%) while the second reactor operates at constant time using similar combination of power and acid concentration. This study placed reactor A next to the waveguide, while the reactor B on the opposite position. Microwave energy emmited from magnetron into cavity through the waveguide. This study evaluated effect of wave distance source on temperature and glucose yield in both reactors. Effect of microwave power, irradiation time and acid concentration and their relationship with glucose and temperature were investigated. Overall, increment of time and power increased yield of glucose at first hydrolysis using sulfuric acid of 0.5%. Glucose yielded from reactor A usually higher as compared to reactor B. Increment acid concentration reduced the yield except the one with high power irradiation. This study observed that second stage hydrolysis had no significant contribution to add the yield.