scholarly journals Esterification of Waste Cooking Oil using Heterogeneous Catalyst from Pearl Shell

2020 ◽  
Vol 9 (3) ◽  
pp. 183-190
Author(s):  
Iwan Sumarlan ◽  
Rona B. Mentari

Biodiesel is a renewable and environmentally friendly energy source. The process of using a homogeneous catalyst has several disadvantages, such as: removing a lot of waste water from washing the catalyst residue and cannot be reused. This catalyst is also low in corrosion and is more environmentally friendly. The purpose of this study was to study the preparation of heterogeneous catalysts from pearl shells applied to the cooking oil esterification reaction. The oil was then characterized by the XRD, XRF, SEM, and FTIR. The results of GCMS for reaction without catalysts yield only 27.07% by weight of alkyl ester, whereas using a catalyst is 93.4%. The influence of time, in the 60th minute, was the optimal time for the esterification reaction, and the effect of the weight of the catalyst which was 1% the optimal weight. This shows that pearl oyster shell catalyst can act as an esterification catalyst for used cooking oil and can be used as an alternative to a homogeneous catalyst substitute catalyst.

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

2020 ◽  
Vol 2 (1) ◽  
pp. 69
Author(s):  
Chandra Chandra ◽  
Asrinawaty Asrinawaty ◽  
Ahmad Fauzan ◽  
Norsita Agustina

Cooking oil is a daily necessity used by housewives for cooking purposes, but basically the community does not yet know and realize that cooking oil that has not been used can be used as household products. Waste cooking oil waste if not managed properly will make the environment dirty and can pollute water and soil. To overcome this problem, innovation in the management of waste cooking oil is needed by involving the community so that waste can be utilized as a product of economic value.One potential of cooking oil waste is a high content of fatty acids so that it can be utilized as an environmentally friendly dish soap. On one hand, in general the community is not yet economically productive, it is difficult to foster an entrepreneurial spirit to create jobs. The method to be used in achieving the objectives is by providing training in recycling used cooking oil into an eco-green floor cleaning and dishwashing soap, entrepreneurship education, encouraging home industries, and helping with product marketing. So that it can improve the standard of living of fostered orphans and poor people and the surrounding community can create jobs, so that people's lives will be better.


Catalysts ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 67 ◽  
Author(s):  
Muhammad Hossain ◽  
Md Siddik Bhuyan ◽  
Abul Md Ashraful Alam ◽  
Yong Seo

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.


2015 ◽  
Vol 1113 ◽  
pp. 322-327
Author(s):  
Norkamruzita Saadon ◽  
Nor Ashikin Mohd Yusof ◽  
Noraini Razali ◽  
Marshahida Mat Yashim ◽  
Amira Khairin Roslan

Biodiesel is clear liquid with a light to dark yellow color. Biodiesel is one of the alternative fuels that are attractive because of its favorable characteristics such as being non-toxic, biodegradable, renewable, carbon neutral and low emission. Fatty acid methyl ester (FAME) is a type of biodiesel. In this study, it was produced by using transesterification of waste cooking oil (WCO) which was reacted with methanol and heterogeneous catalyst. The two heterogeneous catalysts that were used in this study were sodium (Na) metal hydroxide supported on oil palm frond (OPF) and Na metal supported on oil palm kernel shell (OPKS). The support metal used was sodium hydroxide solution (NaOH). OPF and OPKS were used as they are the major residues obtained from the oil palm plantation that covers approximately 14.72% of Malaysian’s total landmass. The parameters that in this study were the reaction temperatures of the transesterification process from 30°C to 60°C and the catalyst loading from 0.5wt% to 3wt%. The reaction time and ratio methanol to oil were kept constant which were 4 hours and 1:10 respectively. This experiment was conducted in order to investigate the effect of two different heterogeneous catalysts on both temperature and catalyst loading on the yield production of FAME. The results were obtained by using GCMS analysis. From the experiment that was conducted, the results of FAME production by using two different catalysts indicate that the higher the reaction temperature is, the higher the production of FAME which is at 60°C. It also shows that the percentage yield of FAME increases with the increase of catalyst loading until it reaches the best value which is at 1wt%.


Konversi ◽  
2018 ◽  
Vol 5 (1) ◽  
pp. 8
Author(s):  
Muthia Elma ◽  
Satria Anugerah Suhendra ◽  
Wahyuddin Wahyuddin

Abstrak-Indonesia memiliki hasil produksi buah kelapa yang hanya dimanfaatkan untuk memasak. Minyak jelantah merupakan hasil dari sisa penggorengan rumah tangga yang setelah penggunaanya menjadi limbah dan dapat mencemari lingkungan. Penelitian ini bertujuan untuk memproduksi biodiesel dengan memanfaatkan campuran antara minyak kelapa dan minyak jelantah terhadap efek penambahan metanol dan waktu reaksi optimum dari pembuatan biodiesel. Proses produksi biodiesel dari campuran kedua bahan baku menggunakan proses dimana minyak kelapa dan minyak jelantah dicampurkan berdasarkan %-v/v dari 200 mL dengan perbandingan minyak jelantah (MJ) dan minyak kelapa (MK) yaitu 100MJ:0MK; 75MJ:25MK; 50MJ:50MK; 25MJ:75MK; dan 0MJ:100MK dengan komposisi metanol serta esterifikasi 38%; 30%; 28%; 19% serta untuk trasesterifikasi 19%; 20%; 21%; 25%. Pada reaksi esterifikasi menggunakan komposisi katalis H2SO4 0,5%, dan transesterifikasi menggunakan katalis KOH 0,9%. Yield yang dihasilkan dari penelitian ini adalah: 100MJ:0MK 92,15%; 93,65%, 75MJ:25MK (96,65%), 50MJ:50MK (95,11%), 25MJ:25MK (96,65%) dan 100MK:0MJ (82,65%). Analisa gliserol total yang didapat pada penelitian ini adalah 100MJ:0M (0,19%), 75MJ:25MK (0,21%), 50MJ:50MK (0,23%) 25MJ:25MK (0,22%) dan 100MK:0MJ (0,26%). Dari hasil analisa gliserol total tersebut didapat sampel yang terbaik yakni 50MJ:50MK dengan nilai glirserol total 0,23% dengan waktu 60 menit untuk esterifikasi dan 70 menit untuk transesterifikasi, dengan analisa angka asam yang didapatkan sebesar 0,2117, angka penyabunan 198,41; ester content  yang didapat sebesar 98,163% water content untuk sebesar 0,56 ppm. Keseluruhan dari hasil analisa biodiesel tersebut memenuhi standar EN 14214.  Kata kunci: minyak kelapa, minyak jelantah, biodiesel, FFA, trigliserida, gliserol total.  Abstract-Coconut oil is normally produced as cooking oil in some areas in Indonesia. However, palm oil mostly produced by industries as vegetable/cooking oil.Waste cooking oil from palm oil becomes a big problem in the environment, and creates pollution. This research aims to use waste cooking oil to produce biodiesel by mixing waste cooking oil and coconut oil. Those mixed oils become raw materials for this proces. The composition of the mixtures are  100MJ: 0MK; 75MJ: 25MK; 50MJ: 50MK; 25MJ: 75MK; and 0MJ: 100MK (% v / v of waste cooking oil (MJ) and coconut oil (MK)).The total of 200 mL oil mixtures was used for the esterification process with methanol composition were 38%; 30%; 28%; and trans-esterification were 19%; 20%; 21%; 23%. Esterification reaction was using the 0,5% H2SO4 as a catalyst, while transesterification was using 0.9% KOH as catalyst. The yield of biodiesel this reaserch were: 100MJ: 0MK (92.15%), 75MJ: 25MK (96.65%), 50MJ: 50MK (95.11%), 25MJ: 25MK (96.65%) and 100MK: 0MJ (82.65%). Furthermore, the total glycerol values were 100MJ:0MK (0.19%), 75MJ: 25MK (0.21%), 50MJ:50MK (0.23%) 25MJ: 25MK (0.22%) and 100MK: 0MJ (0.26%). EN14214 standard shows that the best composition of mixtured oils was 50MJ:50MK. Then, the total glycerol was 0.23% (60-70 minutes for the esterification and transesterification reaction). Acid number value was 0.2117, saponification number was 198.41; ester content was 98.163% and water content was 0.56 ppm.  Keywords: coconut oil, waste cooking oil, biodiesel, FFA, triglyceride, total glycerol.


2017 ◽  
Vol 4 (2) ◽  
pp. 45
Author(s):  
Loo Hariyanto Raharjo ◽  
Monica Monica

Waste cooking oil causes increased level of total cholesterol and LDL and decreased level of HDL serum, which became coronary heart disease. The aim of this study was to evaluate the effect of mangosteen peels extract, which contain alpha-mangostin (xanthone) to decreased level of total cholesterol and LDL and increased level of HDL in rats exposed to waste cooking oil per oral. This study used true experimental designs with randomized post-test only control group design. This study used thirty rats were dividing into six treatment group, which control with Na-CMC 0,5%, control with extract of mangosteen pericarp at dosages of 800 mg/ kg body weight, exposed to waste cooking oil per oral, and exposed to waste cooking oil per oral with extract of mangosteen pericarp at dosages of 600, 800, and 1000 mg/kg body weight. All groups were given treatment for 12 weeks. After 12 weeks, rats were anesthetized with chloroform for collection of blood by cardiac puncture. Analysis of level of total cholesterol , LDL, and HDL serum with spectrophotometer. From Post Hoc test with Least Significant Differences it was concluded that extract of mangosteen peels can decreased level of total cholesterol and LDL and increased level of HDL serum.


2020 ◽  
Vol 8 (2) ◽  
Author(s):  
Sri Endang Wahyuni ◽  
Septian Wulandari

Abstract. Used cooking oil is used cooking oil and waste which is quite dangerous for the ecosystem if carelessly discharged can result in clogged waterways and contamination of water and soil. The method used is Socialization and Workshop activities of the utilization of waste cooking oil which is purified using wood charcoal for 3 weeks and then processed into solid washing soap. The socialization was carried out through pamphlets distributed to participants about the dangers of throwing waste cooking oil carelessly and how to purify used cooking oil. Then a workshop on washing soap made from used cooking oil was conducted. In this activity PKK ladies were very enthusiastic in practicing directly how to make washing soap. Participants in the activity did not find it difficult to make washing soap because the ingredients were easily obtained and the manufacturing process was not complicated. Hopefully, after participating in this socialization and workshop, the participants will become more knowledgeable about not throwing waste cooking oil carelessly and making use of it into solid washing soap so that the products produced can be of economic value.Keywords: used cooking oil, charcoal, washing soap.Abstrak. Minyak jelantah merupakan minyak nabati bekas memasak dan limbah yang cukup berbahaya bagi ekosistem bila dibuang sembarangan dapat mengakibatkan tersumbatnya saluran air dan tercemarnya air dan tanah. Metode yang digunakan adalah kegiatan Sosialisasi dan Workshop pemanfaatan limbah minyak jelantah yang dimurnikan menggunakan arang kayu selama 3 minggu kemudian diolah menjadi sabun cuci padat. Sosialisasi dilakukan melalui pamflet yang dibagikan kepada peserta mengenai bahaya membuang minyak jelantah sembarangan dan cara memurnikan minyak jelantah. Selanjutnya dilakukan workshop pembuatan sabun cuci dari minyak jelantah, pada kegiatan ini ibu-ibu PKK sangat antusias dalam mempraktekkan langsung cara membuat sabun cuci. Peserta kegiatan tidak merasa kesulitan dalam pembuatan sabun cuci karena bahan yang mudah didapat dan proses pembuatannya yang tidak rumit. Semoga setelah mengikuti sosialisasi dan workshop ini peserta kegiatan menjadi bertambah pengetahuannya untuk tidak membuang minyak jelantah sembarangan dan memanfaatkannya menjadi sabun cuci padat sehingga produk yang dihasilkan kelak dapat bernilai ekonomi.Kata Kunci: Minyak Jelantah, arang, sabun cuci.


Elkawnie ◽  
2018 ◽  
Vol 4 (2) ◽  
Author(s):  
Juliansyah Harahap ◽  
Yullia Yullia

Penelitian ini dilaksanakan di Kota Banda Aceh, provinsi Aceh dengan mengambil sampel pada sejumlah restoran dan rumah makan berizin di Kota Banda Aceh. Tujuan utama dari penelitian ini adalah untuk mendapatkan data potensi limbah minyak jelantah yang dihasilkan dari restoran dan rumah makan di Kota Banda Aceh yang nantinya akan dipakai sebagai data awal dalam penentuan kebijakan pengelolaan limbah minyak jelantah sebagai sumber energi alternatif yaitu biodiesel. Metode yang digunakan dalam penelitian ini adalah metode deskriptif analitis dengan pendekatan kuantitatif dimana untuk mendapatkan jumlah potensi limbah minyak jelantah dilakukan dengan menggunakan metode statistik dengan pengambilan sampel populasi secara acak. Hasil dari penelitian ini adalah didapatkannya besaran jumlah potensi limbah minyak jelantah yang dihasilkan oleh sebanyak 52 restoran dan rumah makan berizin yang ada di kota Banda Aceh yaitu sebesar 184,956 liter per harinya.This research was conducted in the city of Banda Aceh, Aceh province by sampling a number of licensed restaurants in the city of Banda Aceh. The main objective of this study was to obtain data on the potential waste of used cooking oil from restaurants in the city of Banda Aceh which would later be used as preliminary data in determining the management policy of waste cooking oil as an alternative energy source, namely biodiesel. The method used in this study was a descriptive analytical method with a quantitative approach where to obtain the potential amount of waste used cooking oil is done using statistical methods with randomly population sampling technique. The results of this study are obtaining the potential amount of waste cooking oil produced by as many as 52 licensed restaurants and food court/shop in the city of Banda Aceh, amount to 184,956 liters per day.


Author(s):  
Fiona Rachma Annisa ◽  
Indang Dewata ◽  
Hary Sanjaya ◽  
Latisma Dj ◽  
Ananda Putra ◽  
...  

This work has investigated the reusability of silica-titania in various temperatures (50 – 70°C) of biodiesel production from waste cooking oil. The reused silica-titania catalyst collected from silica-titania catalyst waste produced from the process of separating the catalyst from biodiesel products from palm oil and used cooking oil at various temperatures. The 1st and 2nd reused SiO2-TiO2 were characterized by DR UV-Vis and the spectra were deconvoluted for calculate the fraction of titanium in tetrahedral coordination. In addition the biodiesel products were characterized using FTIR, and several properties of biodiesel such as density, flow rate and acid value were analyzed in order to get the information about catalytic activity reused SiO2-TiO2. The results show the titanium tetrahedral fraction in reused catalyst (1st) and (2nd) are found to be 24,98% and 24.65%, respectively. The FTIR characterization of biodiesel products and waste cooking oil are almost similar. The analysis of waste cooking oil converted to biodiesel shows an optimum temperature of 50oC that at this temperature the lowest density or highest flow rate gave highest conversion of 47.82% using BCR1 and 39.13% using BCR2.


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