scholarly journals Solar-driven steam gasification of oil palm empty fruit bunch to produce syngas: Parametric optimization via central composite design

2022 ◽  
Vol 227 ◽  
pp. 107118
Author(s):  
Saqr A.A. Al-Muraisy ◽  
Lais Americo Soares ◽  
Srirat Chuayboon ◽  
Shahrul Bin Ismail ◽  
Stéphane Abanades ◽  
...  
Keyword(s):  
Central Composite Design ◽  
Oil Palm ◽  
Parametric Optimization ◽  
Steam Gasification ◽  
Empty Fruit Bunch ◽  
Central Composite

scholarly journals Characterizing Particle Board Made of Oil Palm Empty Fruit Bunch Using Central Composite Design

2018 ◽  
Vol 22 (1) ◽  
Author(s):  
Mirna Rahmah Lubis ◽  
Teuku Maimun ◽  
Jon Kardi ◽  
Rifdullah Bikri Masra
Keyword(s):  
Central Composite Design ◽  
Oil Palm ◽  
Empty Fruit Bunch ◽  
Particle Board ◽  
Central Composite

scholarly journals Optimisation of Simultaneous Saccharification and Fermentation (SSF) for Biobutanol Production Using Pretreated Oil Palm Empty Fruit Bunch

Molecules ◽  
2018 ◽  
Vol 23 (8) ◽  
pp. 1944 ◽  
Author(s):  
Nur Md Razali ◽  
Mohamad Ibrahim ◽  
Ezyana Kamal Bahrin ◽  
Suraini Abd-Aziz
Keyword(s):  
Oil Palm ◽  
Substrate Concentration ◽  
Clostridium Acetobutylicum ◽  
Simultaneous Saccharification And Fermentation ◽  
Consolidated Bioprocessing ◽  
Empty Fruit Bunch ◽  
Initial Ph ◽  
Central Composite ◽  
Simultaneous Saccharification ◽  
Clostridium Acetobutylicum Atcc 824

This study was conducted in order to optimise simultaneous saccharification and fermentation (SSF) for biobutanol production from a pretreated oil palm empty fruit bunch (OPEFB) by Clostridium acetobutylicum ATCC 824. Temperature, initial pH, cellulase loading and substrate concentration were screened using one factor at a time (OFAT) and further statistically optimised by central composite design (CCD) using the response surface methodology (RSM) approach. Approximately 2.47 g/L of biobutanol concentration and 0.10 g/g of biobutanol yield were obtained after being screened through OFAT with 29.55% increment (1.42 fold). The optimised conditions for SSF after CCD were: temperature of 35 °C, initial pH of 5.5, cellulase loading of 15 FPU/g-substrate and substrate concentration of 5% (w/v). This optimisation study resulted in 55.95% increment (2.14 fold) of biobutanol concentration equivalent to 3.97 g/L and biobutanol yield of 0.16 g/g. The model and optimisation design obtained from this study are important for further improvement of biobutanol production, especially in consolidated bioprocessing technology.

scholarly journals Soda-anthraquinone pulping optimization of oil palm empty fruit bunch

BioResources ◽  
2020 ◽  
Vol 15 (3) ◽  
pp. 5012-5031
Author(s):  
Nurul Husna Mohd Hassan ◽  
Noorshashillawati Azura Mohammad ◽  
Mazlan Ibrahim ◽  
Nor Yuziah Mohd Yunus ◽  
Siti Noorbaini Sarmin
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Oil Palm ◽  
Regression Models ◽  
Empty Fruit Bunch ◽  
Paper Properties ◽  
Empty Fruit Bunches ◽  
Tensile Index ◽  
Folding Endurance ◽  
Central Composite

The influence of soda-anthraquinone (AQ) pulping conditions on paper properties of oil palm empty fruit bunches was studied using Response Surface Methodology (RSM) based on Central Composite Design (CCD). The alkali charge, NaOH (A), pulping temperature (T), and pulping time (t) ranged between 20 and 30%, 160 and 180 °C, and 60 and 120 minutes, respectively. The mechanical properties evaluated for the handsheets produced were the tensile index, tearing index, bursting index, folding endurance, zero-span tensile strength, and the optical properties (brightness and opacity). The effects of soda-AQ pulping conditions on oil palm empty fruit bunch paper were elucidated by the regression models obtained. The optimum pulping condition were at 27.3% alkali charge, 160 °C, and 60 min that produced paper properties with 26.8 N.m/g tensile index, 7.95 mN.m2/g tearing index, 5.32 kPa.m2/g bursting index, 1.70 log10 folding endurance, 46.2 N zero-span tensile strength, 51.8% brightness, and 95.8% opacity.

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