Two-Stage Liquefaction of Oil Palm Shell in Alkali Supercritical Ethanol–Water for Enhanced Bio-Oil Production

2019 ◽  
Vol 11 (6) ◽  
pp. 2745-2754 ◽  
Author(s):  
Thikhamporn Burimsitthigul ◽  
Chonnikan Tirapanichayakul ◽  
Piyatida Chantrangsuwan ◽  
Pattarapan Prasassarakich
2014 ◽  
Vol 554 ◽  
pp. 150-154 ◽  
Author(s):  
Faisal Mushtaq ◽  
Ramli Mat ◽  
Farid Nasir Ani

The oil palm shell was subjected to multimode microwave pyrolysis at a fixed microwave power of 300W at 2.54GHz using intimately mix and layer microwave heating methods to observe process temperature, pyrolysis product and bio-oil composition at various levels of Coconut Activated Carbon (CAC). The results indicated that the layers method achieved higher bio-oil yield with complete uniformity of process temperature at high CAC loading compared to intimate mix method. The increased CAC loading increased selectivity towards phenol in bio-oil with maximum phenol 80.23 %area and 51.77%area under GC-MS at 75wt% CAC loading using intimately mix and layer method, respectively. The layer method produced a new product 1,1-dimethyl hydrazine of 11.24–13.01 %area in bio-oils which was not found of using intimately mix method. The 1,1-dimethly hydrazine is an important source of high energy fuel. Keywords: Oil palm shell; intimately mix method; layer method; coconut activated carbon; microwave assisted pyrolysis; heating profile; bio-oil


2012 ◽  
Vol 622-623 ◽  
pp. 535-539
Author(s):  
Varin Han-U-Domlarpyos ◽  
Prapan Kuchonthara ◽  
Napida Hinchiranan

This work aimed to prepare the bio-oil with low oxygen content via two-step process involving pyrolysis and catalytic deoxygenation. The raw bio-oil was produced from the pyrolysis of oil palm shell in a screw pyrolyzer with a heating rate of 25°C/min. Then, 10 ml of obtained bio-oil with 54.5 % (w/w) of oxygen content was upgraded by catalytic deoxygenation carried out in a fixed-bed reactor containing 20 g of NiMoS/-Al2O3 catalyst under nitrogen atmosphere. When the temperature in the reactor reached to the target point, the bio-oil was dropped by using a syringe pump at a constant flow rate of 0.2 ml/min. The results indicated that this process was efficient to reduce the oxygen content in the bio-oil to 11.5% (w/w) when the reaction temperature was 500°C


2020 ◽  
Vol 3 (1) ◽  
pp. 10-16
Author(s):  
Musrifah Tohir ◽  
Findia Findia

ABSTRAKLimbah adalah kotoran atau buangan yang merupakan komponen pencemaran yang terdiri dari zat atau bahan yang tidak mempunyai kegunaan lagi bagi masyarakat. Penambahan abu cangkang kelapa sawit pada campuran lapis aspal beton di penelitian ini merupakan salah satu upaya pemanfaatan limbah dari produksi minyak kelapa sawit (MKS) agar limbah yang dihasilkan seminimal mungkin hasil produksinta tanpa limbah. Tujuan adalah untuk mengetahui nilai kekuatan (stability) dan keawetan (durability) pada campuran lapis aspal beton (Laston). Hasil uji stabilitas (kekuatan) penambahan abu cangkang sawit rata-rata 5 % = 957,52 Kg, 10 % = 1.599,37 Kg, 20 % = 1.498,98 Kg, 30 % = 803,28 Kg dan 40 % = 888,40 Kg.. Nilai uji durabilitas (keawetan) penambahan abu cangkang sawit rata-rata 5 % = 71,84 %, 10 % = 74,44 %, 20 % = 107,12 %, 30 % = 77,18 % dan 40 % = 84,81 KgKata kunci: Abu Cangkang Sawit, Stabilitas, Durabilitas, Laston ABSTRACTWaste is dirt or waste which is a component of pollution consisting of substances or materials that no longer have any use for society. The addition of oil palm shell ash to the concrete asphalt layer mixture in this study is an effort to use waste from palm oil production (MKS) so that the resulting waste is as minimal as possible without waste. The aim is to determine the value of the strength (stability) and durability (durability) of the mixture of asphalt concrete (Laston). The results of the stability test (strength) of the addition of palm shell ash with an average of 5% = 957.52 Kg, 10% = 1,599.37 Kg, 20% = 1,498.98 Kg, 30% = 803.28 Kg and 40% = 888, 40 Kg.  The value of durability test (durability) for the addition of palm shell ash on average 5% = 71.84%, 10% = 74.44%, 20% = 107.12%, 30% = 77.18% and 40% = 84.81 KgKeywords: Palm Shell Ash, Stability, Durability, Laston


2016 ◽  
Vol 8 (15) ◽  
pp. 47-54
Author(s):  
Haspiadi Haspiadi

The purpose of this research is to know the influence of pressure and use of conplast against mechanical properties which are a Modulus of Elasticity (MOE) and Modulus of Rupture (MOR) of plasterboard. The study is done because still low quality of plasterboard made from a mixture of ashes of oil-palm shell especially of the mechanical properties compared to the controls. The method of this reserach used variation of printed pressure and the addition of conplast. Test result is obtained that the highest value of Modulus of Elasticity (MOE) 90875.94 Kg/cm2, Modulus of Rupture (MOR) 61.16 Kg/cm2 and density values in generally good printed at the pressure 60 g/cm3 and the addition of conplast 25% as well as the composition of the ash of palm shell oil 40%: limestone 40%: cement 15%: fiber 5% and 300 mL of water. ABSTRAK Tujuan dari penelitian ini adalah untuk mengetahui pengaruh tekanan dan penggunaan conplast terhadap sifat mekanik yaitu kuat lentur dan keteguhan patah eternit berbahan dasar abu cangkang sawit. Penelitian ini dilakukan karena masi rendahnya mutu eternit berbahan campuran abu cangkang sawit dari bolier khususnya sifat mekanik dibandingkan dengan kontrol. Metode penelitian yang digunakan adalah dengan variasi tekanan cetak dan penambahan conplast. Hasil uji diperoleh bahwa kuat lentur tertinggi sebesar 90875,94 Kg/cm2 dan keteguhan patah sebesar 61,16 Kg/cm2, yang dicetak pada tekanan 60 g/cm3 dan penambahan conplast 25% dengan komposisi  abu cangkang sawit 40 %: kapur 40 % : semen 15 %: serat 5 % dan air 300 mL.Kata Kunci :  Abu cangkang sawit, conplast, kuat lentur, keteguhan patah.


2014 ◽  
Vol 894 ◽  
pp. 55-59
Author(s):  
Abdoullah Namdar ◽  
Fadzil Mat Yahaya ◽  
Kok Jun Jie ◽  
Lim Yen Ping

One of waste agriculture materials is oil palm shell ash. It has been producing in high quantity in palm oil mill, and for storage of that an investment requires. In this paper, an attempt has been made to analysis effect of oil palm shell ash on compressive and flexural strength of cement mortar. The compressive strength and flexural strength of cement mortar has been measured. To improve accuracy of work 50% cement and 50% fine sand has been proposed in cement mortar mix design. The results have been indicated that the effect of OPS ash on flexural and compressive strength of cement mortar is not same. The deflection, load sustainability and time to failure for compressive strength have independent fluctuation of flexural strength. The positive and negative effect of OPS ash on mechanical properties of cement mortar has been observed. The morphology of crack failure has not been investigated. The work can be continued with many waste agriculture materials. Keywords: waste agriculture, deflection, load sustainability, time to failure.


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