Catalytic deoxygenation of stearic acid and waste cooking oil over Pd/SBA-15 for obtaining hydrocarbons with potential as renewable liquid fuels

2019 ◽  
Vol 26 (5) ◽  
pp. 1541-1557
Author(s):  
José G. Pacheco-Sosa ◽  
Anel I. Castillo-Escobedo ◽  
Juan C. Chavarria-Hernandez ◽  
María C. Díaz-Félix ◽  
Hermicenda Pérez-Vidal ◽  
...  
ALCHEMY ◽  
2019 ◽  
Vol 7 (2) ◽  
pp. 58
Author(s):  
Hendro Juwono ◽  
Ardita Elliyanti ◽  
Firman Satria Pamungkas ◽  
Anas Assari ◽  
Ahmad Hawky Dermawan ◽  
...  

<p>Liquid fuel from polystyrene waste and waste cooking oil biodiesel was successfully obtained through catalytic cracking using Al-MCM-41/Ceramic. The structure, morphology, acidity, and porosity of the catalyst were studied by SEM-EDX, pyridine FTIR, and N<sub>2</sub> gas adsorption-desorption. The products of catalytic cracking were analyzed using gas chromatogram-mass spectroscopy (GC-MS). The highest yield was obtained at feedstock variations of 57% (P): 43% (M) with the number of hydrocarbon fractions (&lt; C<sub>7</sub>) is 0.48%, hydrocarbon fraction (C<sub>8 </sub>- C<sub>12</sub>) is 20.99%, and hydrocarbon fraction (&gt; C<sub>12</sub>) is 78.53% in the cracking time 1 hours. Physical characteristics were reported in the form of density, flash point, and caloric value respective. The performance of liquid fuels with commercial fuels, Premium (RON 88), and additives of methyl tertiary butyl ether (MTBE) comparisons of 225 (mL): 750 (mL): 18.25 (mL) respectively produce thermal efficiency on engine use gasoline generator sets was 28.22% at the load of 2118 Watts. Based on this research, all variations of feedstock produce liquid fuels that are in accordance with SNI 06-3506-1994 concerning the quality of gasoline fuel types.</p><p> </p>Keywords: Catalytic cracking, polystyrene waste, waste cooking oil, liquid fuel


2021 ◽  
Vol 149 ◽  
pp. 106235
Author(s):  
Shilei Ding ◽  
Fuwei Li ◽  
Zhixia Li ◽  
Hongchang Yu ◽  
Caifeng Song ◽  
...  

Fuel ◽  
2021 ◽  
pp. 122695
Author(s):  
Norshakirah Ahmad Rashidi ◽  
Elnida Mustapha ◽  
Yeow Yean Theng ◽  
Noor Azira Abdul Razak ◽  
Najihah Abdul Bar ◽  
...  

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Tadesse Anbessie Degfie ◽  
Tadios Tesfaye Mamo ◽  
Yedilfana Setarge Mekonnen

AbstractBiodiesel production from waste cooking oil (WCO) provides an alternative energy means of producing liquid fuels from biomass for various uses. Biodiesel production by recycling WCO and methanol in the presence of calcium oxide (CaO) nano-catalyst offers several benefits such as economic, environmental and waste management. A nano-catalyst of CaO was synthesized by thermal-decomposition method and calcinated at 500 °C followed by characterization using x-ray diffraction (XRD) and scanning electron microscope (SEM) techniques. The XRD results revealed nano-scale crystal sizes at high purity, with a mean particle size of ~29 nm. The SEM images exhibited morphology of irregular shapes and porous structure of the synthesized nanocatalysts. The highest conversion of WCO to biodiesel was estimated to be 96%, at optimized experimental conditions i.e., 50 °C, 1:8 WCO oil to methanol ratio, 1% by weight of catalyst loading rate and 90 minutes reaction time, which is among few highest conversions reported so far. Biodiesel properties were tested according to the American (ASTM D6571) fuel standards. All reactions are carried-out under atmospheric pressure and 1500 rpm of agitation.


2021 ◽  
Vol 154 ◽  
pp. 106248
Author(s):  
Wan Nor Adira Wan Khalit ◽  
N. Asikin-Mijan ◽  
Tengku Sharifah Marliza ◽  
M. Safa Gamal ◽  
Mohd Razali Shamsuddin ◽  
...  

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.


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.


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

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