scholarly journals Development of bimetallic nickel-based catalysts supported on activated carbon for green fuel production

RSC Advances ◽  
2020 ◽  
Vol 10 (61) ◽  
pp. 37218-37232
Author(s):  
Wan Nor Adira Wan Khalit ◽  
Tengku Sharifah Marliza ◽  
N. Asikin-Mijan ◽  
M. Safa Gamal ◽  
Mohd Izham Saiman ◽  
...  

In this work, the catalytic deoxygenation of waste cooking oil (WCO) over acid–base bifunctional catalysts (NiLa, NiCe, NiFe, NiMn, NiZn, and NiW) supported on activated carbon (AC) was investigated.

2016 ◽  
Vol 707 ◽  
pp. 175-181 ◽  
Author(s):  
Ghassan Abdulkareem-Alsultan ◽  
N. Asikin-Mijan ◽  
Yun Hin Taufiq-Yap

Under nitrogen atmosphere, waste cooking oil (WCO) was deoxygenated in semi-batch experiments by using the nanorods of phosphate-activated carbon, which is derived from walnut shell and promoted by CaO as catalyst at 350 °C. The deoxygenation reaction showed high activity (> 48% hydrocarbon yield) and high selectivity towards decarboxylation/decarbonylation (deCOx) reactions via exclusive formation of green diesel C15 fraction (> 60%). The high activity and high selectivity were attributed to the good physicochemical characteristics of the catalyst, including improved metal dispersion, high surface area and high basic properties. Overall, this study demonstrates CaO/AC catalytic deoxygenation as a promising approach to produce liquid green diesel C15 from WCO under hydrogen-free atmosphere.


2020 ◽  
Vol 1010 ◽  
pp. 424-430
Author(s):  
Wan Nor Adira Wan Khalit ◽  
Tengku Sharifah Marliza ◽  
Yun Hin Taufiq-Yap

Waste cooking oil (WCO) that contained triglycerides and fatty acid derivatives can be transformed to green fuel that have similar properties to the fossil fuel. Hence, this study was focusing on the production of green fuel hydrocarbons from feedstock of waste cooking oil by deoxygenation process. The deoxygenation reaction of WCO was conducted using different loading of nickel (Ni) (5, 10, 15 and 20 % w/w) supported on commercial activated charcoal. Based on the catalytic deoxygenation (DO) reaction, the highest conversion of hydrocarbon was achieved when the reaction undergo using Ni20%AC as catalyst at 350°C for 3 hours under inert atmosphere. The present of the higher loading active metal showed high DO reaction by decarboxylation and decarbonylation pathways with high hydrocarbon yield of 83% and high selectivity of n-C15 and n-C17. DO reaction also favoured the optimum strength of acidity. This study revealed that Ni20%AC catalyst is a promising catalyst for the green fuel production in WCO.


2008 ◽  
Vol 4 (4) ◽  
pp. 318-323 ◽  
Author(s):  
Hirotsugu KAMAHARA ◽  
Shun YAMAGUCHI ◽  
Ryuichi TACHIBANA ◽  
Naohiro GOTO ◽  
Koichi FUJIE

2020 ◽  
Vol 223 ◽  
pp. 113296 ◽  
Author(s):  
Brandon Han Hoe Goh ◽  
Cheng Tung Chong ◽  
Yuqi Ge ◽  
Hwai Chyuan Ong ◽  
Jo-Han Ng ◽  
...  

2013 ◽  
Vol 146 ◽  
pp. 785-788 ◽  
Author(s):  
Changjun Zou ◽  
Pinwen Zhao ◽  
Lihong Shi ◽  
Shaobing Huang ◽  
Pingya Luo

EKUILIBIUM ◽  
2012 ◽  
Vol 11 (1) ◽  
Author(s):  
Dwi Ardiana Setyawardani

<p><strong><em>Abstract: </em></strong><em>Glycerol is biodiesel byproduct and has high economic value, so it needs purification to get high purity.Crude glycerol was obtained from triglyceride transesterification with methanol and KOH catalyst. The aims of this research were purify glycerol from biodiesel byproduct and determine the suitable of adsorbent for bleaching of glycerol. Crude glycerol used in this research was from waste of cooking oil and kapokseed oil. In purification of glycerol from waste cooking oil is started by separate methanol and water by distillation. It followed byadding 6% acid solution (HCl, H<sub>2</sub>SO<sub>4</sub>, H<sub>3</sub>PO<sub>4</sub>). Glycerol was mixed with acid solution by 3:10 ratio and the solution was then filtrated to separate the salt.  The filtrate was then bleached by adding 2% weight adsorbent (activated carbon, bleaching earth and activated zeolite), then stirred for 30 minutes at 30 <sup>o</sup>C. The solution was settled for 120 minutes and then filtered by whatman paper. The results showed that the optimum density of glycerol was 1.26 g/ml with addition of H<sub>2</sub>SO<sub>4</sub> 6% volume and 0,5% water content. The brightest color of glycerol was light brown resulted from the adsorption process used bleaching earth.  </em></p><p><strong><em>Keywords: </em></strong><em>Glycerol, Activated Carbon, Bleaching earth, Activated Zeolite.</em><em></em></p><p> </p>


Polymers ◽  
2021 ◽  
Vol 13 (22) ◽  
pp. 3952
Author(s):  
Firdous Ahmad Ahangar ◽  
Umer Rashid ◽  
Junaid Ahmad ◽  
Toshiki Tsubota ◽  
Ali Alsalme

In this study, a novel idea was proposed to convert the polyethylene terephthalate (PET) waste drinking-water bottles into activated carbon (AC) to use for waste cooking oil (WCO) and palm fatty acid distillate (PFAD) feasibility to convert into esters. The acidic and basic char were prepared by using the waste PET bottles. The physiochemical properties were determined by employing various analytical techniques, such as field emission scanning electron microscopy (FESEM), thermogravimetric analysis (TGA), Fourier transform infrared (FTIR), Brunauer–Emmett–Teller (BET) and temperature-programmed desorption – ammonia/carbon dioxide (TPD-NH3/CO2). The prepared PET H3PO4 and PET KOH showed the higher surface area, thus illustrating that the surface of both materials has enough space for impregnation of foreign precursors. The TPD-NH3 and TPD-CO2 results depicted that PET H3PO4 is found to have higher acidity, i.e., 18.17 mmolg−1, due to the attachment of phosponyl groups to it during pretreatment, whereas, in the case of PET KOH, the basicity increases to 13.49 mmolg−1. The conversion results show that prepared materials can be used as a support for an acidic and basic catalyst for the conversion of WCO and PFAD into green fuel.


Konversi ◽  
2012 ◽  
Vol 1 (1) ◽  
pp. 27
Author(s):  
Hesti Wijayanti ◽  
Harmin Nora ◽  
Rajihah Amelia

Abstrak - Penelitian ini bertujuan untuk mengetahui sejauh mana kemampuan arang aktif dari serbuk gergaji kayu ulin dalam proses adsorpsi minyak goreng bekas. Tujuan lainnya adalah untuk mengetahui waktu adsorpsi yang paling baik diantara range waktu yang digunakan untuk proses adsorpsi minyak goreng bekas dengan menggunakan arang aktif dari serbuk gergaji kayu ulin. Arang aktif dibuat dengan membakar serbuk gergaji kayu dan diaktivasi menggunakan ZnCl2 0,1 N. Arang aktif yang diperoleh digunakan untuk mengadsorpsi minyak goreng bekas dengan variasi jumlah arang sebanyak 5, 10 dan 15 gram. Selanjutnya minyak goreng bekas dan arang aktif yang sudah dicampurkan dalam Erlenmeyer tersebut diadsorpsi dengan variasi waktu 40, 60 dan 80 menit menggunakan shaker. Setelah disaring, minyak goreng bekas tersebut dianalisa angka asam, bilangan peroksida dan bilangan penyabunannya.Hasil penelitian yang didapatkan yang mememenuhi standar SNI 01- 3741-2002 dan hasil yang paling bagus adalah dengan berat arang aktif 15 gram dan dengan lama waktu pengadukan selama 80 menit. Dengan nilai angka asam sebesar 0,224 mgKOH/gram, bilangan peroksida sebesar 10 mg eq/gram, sedangkan untuk bilangan penyabunan yang memenuhi standar adalah dengan arang aktif 10 gram dan lama waktu pengadukan 40 menit yaitu sebesar 200,09 mg KOH/gram. Keywords : adsorpsi, minyak goreng bekas, arang aktif Abstract - This research conducted to investigate the ability of activated carbon from sawdust ulin wood for waste cooking oil adsorption and to get the best adsorption time from the used time range in this research. Activated carbon was gotten by carbonizing sawdust before activated it with 0.1 N ZnCl2. This activated carbon was used in adsorption waste cooking oil with weight variation of 5,10 and 15 gram that put into shaker for  40, 60 and 80 minute adsorption. After being filtered, this proceeded waste cooking oil would be analyzed in order to measure acid number, peroxide number and saponification number.As the result, the best dose for adsorption regarding SNI 01- 3741-2002 standard was 15 gram activated carbon in 80 minute adsorption which gave acid number was 0,224 mgKOH/gram, peroxide number was 10 mg eq/gram while the best dose to get saponification number that meet SNI 01- 3741-2002 standard was 10 gram in 40 minute adsorption which gave 200,09 mg KOH/gram. Keywords: adsorption, waste cooking oil, activated carbon


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