Biodiesel production from Bauhinia variegata seeds oil using homogeneous catalyst

Author(s):  
Govindhan Perumal ◽  
Dharmendira Kumar Mahendradas
2019 ◽  
Author(s):  
Chem Int

Biodiesel produced by transesterification process from vegetable oils or animal fats is viewed as a promising renewable energy source. Now a day’s diminishing of petroleum reserves in the ground and increasing environmental pollution prevention and regulations have made searching for renewable oxygenated energy sources from biomasses. Biodiesel is non-toxic, renewable, biodegradable, environmentally benign, energy efficient and diesel substituent fuel used in diesel engine which contributes minimal amount of global warming gases such as CO, CO2, SO2, NOX, unburned hydrocarbons, and particulate matters. The chemical composition of the biodiesel was examined by help of GC-MS and five fatty acid methyl esters such as methyl palmitate, methyl stearate, methyl oleate, methyl linoleate and methyl linoleneate were identified. The variables that affect the amount of biodiesel such as methanol/oil molar ratio, mass weight of catalyst and temperature were studied. In addition to this the physicochemical properties of the biodiesel such as (density, kinematic viscosity, iodine value high heating value, flash point, acidic value, saponification value, carbon residue, peroxide value and ester content) were determined and its corresponding values were 87 Kg/m3, 5.63 Mm2/s, 39.56 g I/100g oil, 42.22 MJ/Kg, 132oC, 0.12 mgKOH/g, 209.72 mgKOH/g, 0.04%wt, 12.63 meq/kg, and 92.67 wt% respectively. The results of the present study showed that all physicochemical properties lie within the ASTM and EN biodiesel standards. Therefore, mango seed oil methyl ester could be used as an alternative to diesel engine.


2021 ◽  
Author(s):  
Wijittra Wongjaikham ◽  
Doonyapong Wongsawaeng ◽  
Vareeporn Ratnitsai ◽  
Manita Kamjam ◽  
Kanokwan Ngaosuwan ◽  
...  

Abstract Fatty acid methyl esters (FAMEs) are sustainable biofuel that can alleviate high oil cost and environmental impacts of petroleum-based fuel. A modified 1,200 W high efficiency fruit blender was employed for continuous transesterification of various refined vegetable oils and waste cooking oil (WCO) using sodium hydroxide as a homogeneous catalyst. The following factors have been investigated on their effects on FAME yield: baffles, reaction volume, total reactant flow rate, methanol-oil molar ratio, catalyst concentration and reaction temperature. Results indicated that the optimal conditions were: 2,000 mL reaction volume, 50 mL/min total flow rate, 1% and 1.25% catalyst concentration for refined palm oil and WCO, respectively, 6:1 methanol-to-oil molar ratio and 62 - 63oC, obtaining yield efficiency over 96.5% FAME yield of 21.14 ´ 10-4 g.J-1 (for palm oil) and 19.39 ´ 10-4 g.J-1 (for WCO). All the properties of produced FAMEs meet the EN 14214 and ASTM D6751 standards. The modified household fruit blender could be a practical and low-cost alternative biodiesel production apparatus for continuous biodiesel production for small communities in remote areas.


Author(s):  
J. Vaishnavi Sree ◽  
Boddu Akhil Chowdary ◽  
Kottu Santosh Kumar ◽  
Mohana Preethi Anbazhagan ◽  
Sindhu Subramanian

2015 ◽  
Vol 501 ◽  
pp. 48-55 ◽  
Author(s):  
Carlo Pastore ◽  
Emanuele Barca ◽  
Guido Del Moro ◽  
Antonio Lopez ◽  
Giuseppe Mininni ◽  
...  

2018 ◽  
Vol 2 (2) ◽  
pp. 85-92
Author(s):  
F. Fitriyah ◽  
Frebhika Sri Puji Pangesti

ABSTRAK Pemanfaatan zeolit alam Bayah Banten sebagai katalis homogen dalam penelitian ini adalah sebagai alternatif penggunaan katalis sintetik. Selain itu bakteri Rhizopus sp. digunakan sebagai pretreatment biokatalis dalam pemanfaatan minyak jelantah untuk pembuatan biodiesel. Hal ini akan memberikan beberapa keuntungan, yaitu dapat mereduksi limbah minyak jelantah,  mengurangi biaya produksi pembuatan bahan bakar serta memanfaatkan kekayaan alam terutama yang terdapat di Provinsi Banten. Penelitian ini bertujuan mempelajari metode pembuatan biodiesel dari minyak jelantah menggunakan katalis zeolit alam Bayah dan biokatalis bakteri  Rhizopus sp serta uji kualitatif dan kuantitatif standar biodiesel. Metode yang digunakan dalam penelitian ini adalah reaksi esterifikasi/transesterifikasi minyak dengan alkohol rantai pendek melalui bantuan katalis. Hasil penelitian ini menunjukan minyak jelantah yang sudah diolah menjadi  biodiesel, yaitu viskositas (pada suhu  40°C) sebesar 0,862 g/ml dan 29,7, kadar air 0,05 % , titiknyala 120°C, titiktuang 18°C, bilangan asam 0,49 mg KOH/g, angka setana 55, belerang 0,11 mg/kg, fosfor 1,7 mg/kg, waktu bakar 43 detik, residu 1,8 % , sisa pembakaran 9,6% telah memenuhi standar biodiesel SNI-04-7182-201 Kata Kunci : biodiesel, zeolite bayah, minyak jelantah   ABSTRACT Utilization of Banten Bayah natural zeolite as a homogeneous catalyst in making biodiesel is an alternative to the use of synthetic catalysts. In addition, the bacteria Rhizopus sp., was used as a biocatalyst in waste cooking oil for the manufacture of biodiesel. This will provide several advantages, reduces waste cooking oil, reduce cost biodiesel production and utilize natural resources, especially those found in Banten Province. This study aims to study the method of making biodiesel from waste cooking oil using natural Bayah zeolite catalyst and Rhizopus sp bacterial as biocatalyst as the quantitative and quantitative standard tests of biodiesel. The methods in this study is the esterification / transesterification reaction of oil with short chain alcohols through of a catalyst. The results of this research show that waste cooking oil has been processed into biodiesel that is density and viscosity parameters (at 40°C ) is 0.862 g/mL and 29.7, 0.05% moisture content 120 ° C point, 18 ° C point, acid number is 0.49 mg KOH / g, setana number 55, sulfur content 0.11 mg / kg, phosphorus content 1.7 mg / kg, burn time 43 seconds, residue 1.8%, residual combustion 9.6% it has fulfilled the biodiesel standard SNI-04-7182-2012. Keyword : biodiesel, zeolite bayah, bacteria, cooking oil


2020 ◽  
Vol 8 ◽  
Author(s):  
Eslam G. Al-Sakkari ◽  
Mohammed G. Mohammed ◽  
Alaaeldin A. Elozeiri ◽  
Omar M. Abdeldayem ◽  
Mahmoud M. Habashy ◽  
...  

This study aims to provide the technoeconomic aspects of two clean processes for biodiesel production. The first process utilizes waste cooking oil as a feedstock and potassium hydroxide as a homogeneous catalyst. The second process uses cement kiln dust heterogeneous catalyst and virgin soybean oil. A comparison was performed between the results of the technical and economic assessments to determine the more feasible process. Theoretical purities of biodiesel and glycerol obtained upon conducting the simulation of both processes are high, i.e., 99.99%. However, the homogeneous process is economically superior as its payback period is slightly more than 1 year while the return on investment is higher than 74%, and the unit production cost is USD 1.067/kg biodiesel. Sensitivity analysis revealed that the profitability of biodiesel production is very sensitive to the feedstock price and recommends shifting toward waste vegetable oils as a cheap feedstock to have a feasible and economic process.


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