Design of mesoporous SO42−/ZrO2–SiO2(Et) hybrid material as an efficient and reusable heterogeneous acid catalyst for biodiesel production

2010 ◽  
Vol 12 (12) ◽  
pp. 2135 ◽  
Author(s):  
Wei Li ◽  
Zijiang Jiang ◽  
Fengyan Ma ◽  
Fang Su ◽  
Ling Chen ◽  
...  
Keyword(s):  
Hybrid Material ◽  
Acid Catalyst ◽  
Biodiesel Production ◽  
Heterogeneous Acid Catalyst

An efficient heterogeneous acid catalyst derived from waste ginger straw for biodiesel production

2021 ◽  
Author(s):  
Hewei Yu ◽  
Yunlong Cao ◽  
Heyao Li ◽  
Gaiju Zhao ◽  
Xingyu Zhang ◽  
...  
Keyword(s):  
Acid Catalyst ◽  
Biodiesel Production ◽  
Heterogeneous Acid Catalyst

scholarly journals Optimization of Biodiesel Production from Waste Cooking Oil Using S–TiO2/SBA-15 Heterogeneous Acid Catalyst

Catalysts ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 67 ◽  
Author(s):  
Muhammad Hossain ◽  
Md Siddik Bhuyan ◽  
Abul Md Ashraful Alam ◽  
Yong Seo
Keyword(s):  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Waste Cooking Oil ◽  
Biodiesel Production ◽  
Catalyst Loading ◽  
Esterification Reaction ◽  
Impregnation Method ◽  
Cooking Oil ◽  
Heterogeneous Acid Catalyst

The aim of this research was to synthesize, characterize, and apply a heterogeneous acid catalyst to optimum biodiesel production from hydrolyzed waste cooking oil via an esterification reaction, to meet society’s future demands. The solid acid catalyst S–TiO2/SBA-15 was synthesized by a direct wet impregnation method. The prepared catalyst was evaluated using analytical techniques, X-ray diffraction (XRD), Scanning electron microscopy (SEM) and the Brunauer–Emmett–Teller (BET) method. The statistical analysis of variance (ANOVA) was studied to validate the experimental results. The catalytic effect on biodiesel production was examined by varying the parameters as follows: temperatures of 160 to 220 °C, 20–35 min reaction time, methanol-to-oil mole ratio between 5:1 and 20:1, and catalyst loading of 0.5%–1.25%. The maximum biodiesel yield was 94.96 ± 0.12% obtained under the optimum reaction conditions of 200 °C, 30 min, and 1:15 oil to methanol molar ratio with 1.0% catalyst loading. The catalyst was reused successfully three times with 90% efficiency without regeneration. The fuel properties of the produced biodiesel were found to be within the limits set by the specifications of the biodiesel standard. This solid acid catalytic method can replace the conventional homogeneous catalyzed transesterification of waste cooking oil for biodiesel production.

Ultrasound-Intensified Biodiesel Production from Mixed Nonedible Oil Feedstock Using Heterogeneous Acid Catalyst Supported on Rubber De-oiled Cake

2018 ◽  
Vol 57 (44) ◽  
pp. 14926-14938 ◽  
Author(s):  
Ritesh S. Malani ◽  
Harshad Sardar ◽  
Yash Malviya ◽  
Arun Goyal ◽  
Vijayanand S. Moholkar
Keyword(s):  
Acid Catalyst ◽  
Biodiesel Production ◽  
Heterogeneous Acid Catalyst

scholarly journals Optimization of Pyrolysis Operating Condition for Deriving Corn Starch Heterogeneous Acid Catalyst for Biodiesel Production

2015 ◽  
Vol 9 (7) ◽  
pp. 61 ◽  
Author(s):  
Herry Santoso ◽  
Christ Michael ◽  
Hillman Wira ◽  
Maria Inggrid
Keyword(s):  
Oleic Acid ◽  
Pyrolysis Temperature ◽  
Corn Starch ◽  
Edible Oils ◽  
Raw Materials ◽  
Acid Catalyst ◽  
Raw Material ◽  
Biodiesel Production ◽  
Fatty Oil ◽  
Heterogeneous Acid Catalyst

Biodiesel can be produced from various oils and fats. Due to possibility of diversion of edible oils from feedstocks to raw materials for biodiesel production, which may lead to food crisis, it is preferable to choosenon-edible oils as raw material for biodiesel production. As a country rich in natural resources, Indonesia has avast amount and variety of non-edible fatty-oil production plants. However, non-edible oils usually have highfree fatty acid (FFA) contents. Oils with high FFA contents cannot be converted directly to biodiesel using aconventional alkaline catalyzed process due to saponification problem. To avoid this problem, the high FFAcontents in the oils must be reduced via esterification process using acid catalyst. The use of homogeneous acidcatalyst in this process can be very corrosive and not environmentally friendly while the use of commerciallyavailable heterogeneous acid catalyst can be very expensive. In this research, a heterogeneous acid catalystsuitable for biodiesel production will be derived from corn starch through pyrolysis followed by sulphonationprocesses. The purpose of this research is to study the effects of pyrolysis temperature and time to the aciddensity of the catalyst and the activity of the catalyst in the esterification of oleic acid using a 22 factorial designwith 3 center points experimental design. It is found that the catalyst obtained from pyrolysis at 400°C for 15hours has the optimum–HSO3 content of 5.9% which corresponds to the highest average conversion of theesterification of oleic acid of 97.45%.

Synthesis of renewable heterogeneous acid catalyst from oil palm empty fruit bunch for glycerol-free biodiesel production

2020 ◽  
Vol 727 ◽  
pp. 138534 ◽  
Author(s):  
Wan-Ying Wong ◽  
Steven Lim ◽  
Yean-Ling Pang ◽  
Siew-Hoong Shuit ◽  
Wei-Hsin Chen ◽  
...  
Keyword(s):  
Oil Palm ◽  
Acid Catalyst ◽  
Biodiesel Production ◽  
Empty Fruit Bunch ◽  
Heterogeneous Acid Catalyst

Utilisation of biomass wastes based activated carbon supported heterogeneous acid catalyst for biodiesel production

2020 ◽  
Vol 158 ◽  
pp. 91-102 ◽  
Author(s):  
Zo-Ee Tang ◽  
Steven Lim ◽  
Yean-Ling Pang ◽  
Siew-Hoong Shuit ◽  
Hwai-Chyuan Ong
Keyword(s):  
Activated Carbon ◽  
Acid Catalyst ◽  
Biodiesel Production ◽  
Heterogeneous Acid Catalyst

scholarly journals Optimization and blends study of heterogeneous acid catalyst-assisted esterification of palm oil industry by-product for biodiesel production

2020 ◽  
Vol 7 (1) ◽  
pp. 191592
Author(s):  
Shehu-Ibrahim Akinfalabi ◽  
Umer Rashid ◽  
Imededdine Arbi Nehdi ◽  
Thomas Shean Yaw Choong ◽  
Hassen Mohamed Sbihi ◽  
...  
Keyword(s):  
Reaction Time ◽  
Methyl Ester ◽  
Iodine Value ◽  
Kinematic Viscosity ◽  
Catalyst Concentration ◽  
Acid Catalyst ◽  
Acid Value ◽  
Fuel Properties ◽  
Biodiesel Production ◽  
Heterogeneous Acid Catalyst

The optimum conditions to produce palm fatty acid distillate (PFAD)-derived-methyl esters via esterification have been demonstrated with the aid of the response surface methodology (RSM) with central composite rotatable design in the presence of heterogeneous acid catalyst. The effect of four reaction variables, reaction time (30–110 min), reaction temperature (30–70°C), catalyst concentration (1–3 wt.%) and methanol : PFAD molar ratio (3 : 1–11 : 1), were investigated. The reaction time had the most influence on the yield response, while the interaction between the reaction time and the catalyst concentration, with an F -value of 95.61, contributed the most to the esterification reaction. The model had an R 2 -value of 0.9855, suggesting a fit model, which gave a maximum yield of 95%. The fuel properties of produced PFAD methyl ester were appraised based on the acid value, iodine value, cloud and pour points, flash point, kinematic viscosity, density, ash and water contents and were compared with biodiesel EN 14214 and ASTM D-6751 standard limits. The PFAD methyl ester was further blended with petro-diesel from B0, B3, B5, B10, B20 and B100, on a volumetric basis. The blends were characterized by TGA, DTG and FTIR. With an acid value of 0.42 (mg KOH g −1 ), iodine value of 63 (g.I 2 /100 g), kinematic viscosity of 4.31 (mm 2 s −1 ), the PFAD methyl ester has shown good fuel potential, as all of its fuel properties were within the permissible international standards for biodiesel.

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