Optimization of co-gasification process parameters of pretreated palm kernel shell and pretreated Malaysian low rank coal using response surface methodology

2018 ◽  
Author(s):  
Razi Ahmad ◽  
Mohd Azlan Mohd Ishak ◽  
Nur Nasulhah Kasim ◽  
Khudzir Ismail
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Process Parameters ◽  
Palm Kernel ◽  
Low Rank ◽  
Low Rank Coal ◽  
Palm Kernel Shell ◽  
Gasification Process

Microwave-assisted pyrolysis of palm kernel shell: Optimization using response surface methodology (RSM)

2013 ◽  
Vol 55 ◽  
pp. 357-365 ◽  
Author(s):  
Muhammad 'Azim Jamaluddin ◽  
Khudzir Ismail ◽  
Mohd Azlan Mohd Ishak ◽  
Zaidi Ab Ghani ◽  
Mohd Fauzi Abdullah ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Palm Kernel ◽  
Palm Kernel Shell ◽  
Microwave Assisted ◽  
Shell Optimization

scholarly journals Magnesium-Palm Kernel Shell Biochar Composite for Effective Methylene Blue Removal: Optimization via Response Surface Methodology

2021 ◽  
Vol 29 (3) ◽  
Author(s):  
Nur Hanani Hasana ◽  
Rafeah Wahi ◽  
Yusralina Yusof ◽  
Nabisab Mujawar Mubarak
Keyword(s):  
Methylene Blue ◽  
Response Surface Methodology ◽  
Response Surface ◽  
Contact Time ◽  
Palm Kernel ◽  
Sem Analysis ◽  
Solution Ph ◽  
Average Pore ◽  
Palm Kernel Shell ◽  
Bet Analysis

This study investigates the properties and potential application of Mg-PKS biochar composite for methylene blue solution (MB) adsorption. The Mg-PKS biochar composite was developed from palm kernel shell biochar via steam activation followed by MgSO4 treatment and carbonization. The effect of process parameters such as solution pH (4-10), contact time (30-90 min) and adsorbent dosage (0.1-0.5 g) were investigated via central composite design, response surface methodology. Results revealed that the Mg-PKS biochar composite has irregular shapes pore structure from SEM analysis, a surface area of 674 m2g-1 and average pore diameters of 7.2195 μm based on BET analysis. RSM results showed that the optimum adsorption of MB onto Mg-biochar composite was at pH 10, 30 min contact time and 0.5 g/100 mL dosage with a removal efficiency of 98.50%. In conclusion, Mg treatment is a potential alternative to other expensive chemical treatment methods for biochar upgrading to the adsorbent.

Fiber laser processing of GFRP composites and multi-objective optimization of the process using response surface methodology

2018 ◽  
Vol 53 (11) ◽  
pp. 1459-1473 ◽  
Author(s):  
Shiva Dayal Rao B ◽  
Abhijeet Sethi ◽  
Alok Kumar Das
Keyword(s):  
Response Surface Methodology ◽  
Fiber Laser ◽  
Response Surface ◽  
Process Parameters ◽  
Heat Affected Zone ◽  
Cutting Speed ◽  
Kerf Width ◽  
Laser Irradiance ◽  
Input Process ◽  
Cut Surface

In the present investigation, a continuous wave fiber laser with maximum power of 400 W was used to cut a glass fiber reinforced plastic sheet of 4.56 mm thickness using Nitrogen as assisting gas. The influence processing parameters such as laser irradiance, gas pressure, and cutting speed on the cut surface quality were investigated by using response surface methodology. The different responses of laser cut surface such as upper kerf width, taper percentage along the cut depth, and heat-affected zone on the top surface were measured to analyze the influence of input process parameters on the responses. A statistical analysis on the obtained results was conducted and found that the optimum values of different input process parameters were laser irradiance: 8.28 × 105 watt/cm2, cutting speed: 600 mm/min and assisting gas pressure: 7.84 bar. The corresponding values of responses were upper kerf width: 177.4 µm, taper 0.73%, and heat-affected zone on top surface: 109.23 µm. The confirmation experiments were conducted with the obtained optimum parameter setting and observed that the predicted values and experimental values for upper kerf width, taper percentage and top surface heat-affected zone were within the error limits of 2.52%, 1.84%, and 0.45%, respectively. Furthermore, damages like loose fibers, interlayer fractures, evaporation of matrix material and fiber breakages were observed.

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