Effect of process variables on the calorific value and compressive strength of the briquettes made from high moisture Empty Fruit Bunches (EFB)

2nd International Conference on Oleo and Petrochemical Engineering

Helwani, Z.^1 ; Fatra, W.^2 ; Arifin, L.^1 ; Othman, M.R.^3 ; Syapsan^4

Departement of Chemical Engineering, Riau University, Pekanbaru

28293, Indonesia^1

Departement of Mechanical Engineering, Riau University, Pekanbaru

28293, Indonesia^2

School of Chemical Engineering, Universiti Sains Malaysia, Nibong Tebal, Pulau Pinang

14300, Malaysia^3

Economic Faculty, Riau University, Pekanbaru

28293, Indonesia^4

关键词: Applied pressure;    Binder composition;    Empty fruit bunches;    Outside diameter;    Process condition;    Process Variables;    Response surface methodology;    Small particle size;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/345/1/012020/pdf
DOI  :  10.1088/1757-899X/345/1/012020

来源: IOP

【 摘 要 】

In this study, the manual hydraulic press was designed to prepare the briquettes from selected biomass waste. Each biomass was sun-dried and milled into small particle sizes before mixing with crude glycerol that used as a biomass binder. The effects of applied pressure levels of 100, 110, 120 bars, the particle size of 60, 80 and 100 mesh and the binder composition on the density, compressive strength and calorific heating value of the prepared briquettes were investigated using response surface methodology (RSM). Results showed that the briquettes have an average inside diameter, average outside diameter, and height of 12, 38, and 25-30 mm, respectively. The density of the briquettes increased with increasing the applied pressure, was in the range of 623-923 kg/m3. The densest briquettes were obtained at 80 mesh of particle size, 53:47 binder composition ratio and 110 bars of pressurizing. The heating value of the briquette reached up to 28.99 MJ/kg obtained on the particle size of 80 mesh, 53:47 binder composition, and 110 bars and the best compressive strength of 6.991 kg/cm2obtained at a particle size of 100 mesh, 60:40 binder composition, and 120 bars. Process conditions influence the calorific value significantly.