GASIFICATION OF OIL PALM EMPTY FRUIT BUNCHES (OPEFB) BRIQUETTES FOR BIO-SYNGAS PRODUCTION

2016 ◽  
Vol 78 (8-3) ◽  
Author(s):  
Bemgba Bevan Nyakuma ◽  
Arshad Ahmad ◽  
Anwar Johari ◽  
Tuan A. T. Abdullah ◽  
Olagoke Oladokun ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Oil Palm ◽  
Empty Fruit Bunches ◽  
Syngas Production ◽  
Bed Temperature ◽  
Fluidized Bed Gasifier ◽  
Bed Agglomeration ◽  
Solid Biomass Fuel ◽  
Solid Biomass

Gasification of Oil Palm Empty Fruit Bunches (OPEFB) briquettes was investigated in an air blown 4.5 kW allothermal fluidized bed gasifier to examine the effects of bed temperature (600 – 800 °C) and equivalence ratio (λ = 0.25) on bio-syngas yield and composition. In addition, physicochemical and thermochemical characterization of the fuel properties of the OPEFB briquettes were also examined. The results demonstrate that pelletization improved the solid biomass fuel (SBF) properties of OPEFB including moisture content and higher heating value (HHV). The gasification of OPEFB briquettes produced bio-syngas comprising H2, CO, CO2, CH4 as well as solid biochar with a HHV higher than the original OPEFB briquettes. The highest yield of H2 was obtained at 600 °C while HHV of the bio-syngas was within the range 4 - 8 MJ/Nm3 for air gasification in fluidized bed gasifiers. In addition, agglomeration of bed materials did not occur during OPEFB briquettes gasification despite its high bed agglomeration potential (BAP). In conclusion, the gasification of OPEFB briquettes into bio-syngas and biochar is a practical route for bioenergy production in Malaysia

scholarly journals Mitigating bed agglomeration in a fluidized bed gasifier operating on rice straw

2020 ◽  
Vol 6 ◽  
pp. 275-285
Author(s):  
Jurarat Nisamaneenate ◽  
Duangduen Atong ◽  
Anun Seemen ◽  
Viboon Sricharoenchaikul
Keyword(s):  
Fluidized Bed ◽  
Rice Straw ◽  
Fluidized Bed Gasifier ◽  
Bed Agglomeration

Recent Advances in Fluidized Bed Gasification of Oil Palm Empty Fruit Bunches

2020 ◽  
pp. 88-105
Author(s):  
Bemgba Bevan Nyakuma ◽  
Olagoke Oladokun
Keyword(s):  
Fluidized Bed ◽  
Oil Palm ◽  
Low Cost ◽  
Practical Method ◽  
Operational Parameters ◽  
Empty Fruit Bunches ◽  
Lignocellulosic Feedstock ◽  
Recent Developments ◽  
Gasification Technology ◽  
Potential Use

The chapter presents recent developments in the gasification of oil palm empty fruit bunches (EFB) through fluidized bed gasifiers. The bioenergy potential of oil palm EFB as an environmentally friendly biomass is presented. Furthermore, the chapter highlights the prospects of utilising biomass gasification technology as a practical method for valorising EFB. The successful development and deployment of gasification for oil palm EFB depends on a critical understanding of the fundamental theories of the chemical reactions, classification, and operational parameters of biomass gasifiers. Hence, the potential use of fluidized bed gasifiers for oil palm empty fruit bunches (EFB) is highlighted in detail. Next, the analysis of the fundamental theories, assumptions, and equations of fluidization critical to fluidized bed gasification of EFB is presented. The chapter concludes by highlighting the potential of oil palm EFB as a low-cost, abundant, lignocellulosic feedstock for valorisation through fluidized bed gasification.

scholarly journals Eco-Friendly Extraction and Characterization of Cellulose from Oil Palm Empty Fruit Bunches

BioResources ◽  
2013 ◽  
Vol 8 (2) ◽  
Author(s):  
Muhammad Shahid Nazir ◽  
Bambang Air Wahjoedi ◽  
Abdul Wahid Yussof ◽  
Mohd Azmuddin Abdullah
Keyword(s):  
Oil Palm ◽  
Empty Fruit Bunches

Characterization of a dual fluidized bed gasifier with blended biomass/coal as feedstock

2018 ◽  
Vol 254 ◽  
pp. 97-106 ◽  
Author(s):  
Linbo Yan ◽  
Yang Cao ◽  
Xuezheng Li ◽  
Boshu He
Keyword(s):  
Fluidized Bed ◽  
Dual Fluidized Bed ◽  
Fluidized Bed Gasifier

High H2/CO Ratio Syngas Production from Chemical Looping Gasification of Sawdust in a Dual Fluidized Bed Gasifier

2016 ◽  
Vol 30 (3) ◽  
pp. 1764-1770 ◽  
Author(s):  
Jimin Zeng ◽  
Rui Xiao ◽  
Dewang Zeng ◽  
Yang Zhao ◽  
Huiyan Zhang ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Chemical Looping ◽  
Syngas Production ◽  
Dual Fluidized Bed ◽  
Fluidized Bed Gasifier

scholarly journals Produksi dan karakterisasi lakase Omphalina sp. Production and characterization of Omphalina sp. laccase

2016 ◽  
Vol 75 (2) ◽  
Author(s):  
. SISWANTO ◽  
. SUHARYANTO ◽  
Rossy FITRIA
Keyword(s):  
Oil Palm ◽  
Laccase Activity ◽  
Research Result ◽  
White Rot Fungi ◽  
White Rot ◽  
Partial Purification ◽  
Empty Fruit Bunches ◽  
Optimum Ph ◽  
Laccase Enzyme

SummaryOmphalina sp. a white-rot fungi (WRF)originated from oil palm plantation has abilityto degrade empty fruit bunches of oil palm(EFBOP) so that it is expected to producelaccase with high activity. The ability ofOmphalina sp. to produce laccase enzyme onliquid fermentation will be studied. The enzymewill also be partially purified andcharacterized. The research result showed thatthe highest enzyme activity (1.162 U/mL) wasobtained using glucose malt yeast (GMY)medium at room temperature for four days.The addition of 2,5-xylidine as an inducerproduced laccase earlier i.e two days, but theactivity of laccase was less active afterprolonged incubation compared to that ofcontrol. The laccase produced on mediumcontaining 2% EFBOP reached optimumactivity as much as 0.38 U/mL after 10 th daysof incubation. Partial purification of laccaseon Sephacryl S-200 HR column resulted58.23% of yield recovery with twice purity thanbefore. The optimum pH of laccase was 4.5.Laccase activity was stable even after heatedon 50 o C for 30 minutes, but then decreasedwhen heated until 60 o C. The laccase has K Mand V max as much as 0.15 mM and 0.56 U/mLrespectively.RingkasanOmphalina sp., adalah fungi pelapuk putih(FPP) hasil isolasi dari kebun kelapa sawityang diketahui mampu mendegradasi tandankosong kelapa sawit (TKKS) dengan cepatsehingga diharapkan mampu menghasilkanlakase dengan aktivitas tinggi. KemampuanOmphalina sp. menghasilkan enzim lakasepada fermentasi cair akan dipelajari. Selain itu,lakase yang dihasilkan akan dimurnikan secaraparsial serta dilakukan karakterisasi pH, suhu,dan konsentrasi substrat optimum. Hasilpenelitian menunjukkan bahwa Omphalina sp.menghasilkan lakase dengan aktivitas tertinggi(1,162 U/mL) pada medium glucose malt yeast(GMY) yang diinkubasikan pada suhu ruangselama empat hari. Penambahan 2,5-xilidinsebagai induser mempercepat produksi lakaselebih awal yaitu dalam waktu dua hari, namunaktivitasnya masih lebih rendah dibandingkandengan kontrol pada inkubasi lebih lanjut.Lakase dari Omphalina sp. juga dapatdiproduksi pada medium yang mengandung2% TKKS dan aktivitasnya mencapai0,38 U/mL yang diinkubasi dalam suhu ruangselama 10 hari. Pemurnian parsial pada kolomSephacryl S-200 HR menghasilkan rendemensebesar 58,23% dengan kemurnian dua kalinya.Aktivitas lakase optimum pada pH 4,5 dantetap stabil setelah pemanasan selama 30 menitpada suhu ruang hingga 50 o C dan menuruntajam pada suhu 60 o C. Lakase Omphalina sp.menghasilkan nilai K M dan V maks masing-masing sebesar 0,15 mM dan 0,56 U/mL.

Preparation and characterization of activated carbons produced from oil palm empty fruit bunches

TANSO ◽  
2019 ◽  
Vol 2019 (286) ◽  
pp. 9-13 ◽  
Author(s):  
Tomoyoshi Sakamoto ◽  
Muhammad Abbas Ahmad Zaini ◽  
Yoshimasa Amano ◽  
Motoi Machida
Keyword(s):  
Oil Palm ◽  
Activated Carbons ◽  
Empty Fruit Bunches
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