Effect of Temperature and Concentration of Zeolite Catalysts from Geothermal Solid Waste in Biodiesel Production from Used Cooking Oil by Esterification–Transesterification Process

The production of biodiesel using zeolite catalysts from geothermal solid waste has been studied. This study aims to make zeolite catalysts as catalysts in biodiesel production, assessing the effect of catalyst concentration, and temperature in the esterification–transesterification process on the biodiesel yield produced. The results showed that the synthesized zeolite catalyst was an analcime zeolite catalyst (Al1.9Na1.86O12Si4). The biodiesel yield of 98.299% with 100% fatty acid alkyl ester (FAAE) content was achieved at a catalyst concentration of 5%wt and a reaction temperature of 300 °C for one-hour reaction time. The yield of biodiesel decreased with repeated catalysts, which experienced morphological changes before and after three usage times. Consequently, in this case, the catalyst cannot be regenerated.

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Pengaruh Temperatur, Konsentrasi Katalis Dan Rasio Molar Metanol-Minyak Terhadap Yield Biodisel Dari Minyak Goreng Bekas Melalui Proses Netralisasi-Transesterifikasi

METANA ◽

10.14710/metana.v13i1.11340 ◽

2018 ◽

Vol 13 (1) ◽

pp. 30

Author(s):

Antonius Prihanto ◽

T.A. Bambang Irawan

Keyword(s):

Temperature Variation ◽

Catalyst Concentration ◽

Process Condition ◽

Effect Of Temperature ◽

Molar Ratio ◽

Concentration Variation ◽

Cooking Oil ◽

Used Cooking Oil

Telah dilakukan penelitian tentang pembuatan biodisel dari minyak goreng bekas melalui proses netralisasi-transesterifikasi. Tujuan penelitian ini adalah untuk mengkaji pengaruh temperatur terhadap yield biodiesel, pengaruh konsentrasi katalis terhadap yield biodiesel dan pengaruh rasio molar methanol-minyak goreng bekas terhadap yield biodiesel melalui proses netralisasi dan transesterifikasi. Untuk mendapatkan kondisi proses transesterifikasi terbaik, maka dikaji pengaruh variasi suhu (30 oC, 40 oC, 50 oC, 60 oC, 70 oC), variasi konsentrasi katalis KOH (0,75 %, 1 %, 1,25 %, 1,5 %, 1,75 %) dan rasio molar metanol-minyak (6:1; 7:1; 8:1; 9:1; 10:1) terhadap yield biodiesel yang dihasilkan dari minyak goreng bekas. Hasil penelitian menunjukkan pada rasio 6 : 1, konsentrasi katalis KOH 1 % pada suhu 60 oC mengahasilkan yield biodiesel maksimal sebesar 87,3 %. Effect of Temperature, Catalyst Concentration and Methanol-Oil Molar Ratio Against Biodiesel Yield from Used Cooking Oil Through Neutralization Transesterification ProcessA research has been conducted on the making of biodiesel from used cooking oil through a neutralization-transesterification process. The purpose of this study was to examine the effect of temperature on biodiesel yield, the effect of catalyst concentration on biodiesel yield and the effect of molar ratio of methanol to used biodiesel yield through neutralization and transesterification process. To obtain the best transesterification process condition, the effect of temperature variation (30 oC, 40 oC, 50 oC, 60 oC, 70 oC), KOH catalyst concentration variation (0.75%, 1%, 1.25%, 1,5 %, 1.75%) and the molar ratio of methanol-oil (6: 1; 7: 1; 8: 1; 9: 1; 10: 1) to the yield of biodiesel produced from used cooking oil. The results showed at a ratio of 6: 1, the concentration of 1% KOH catalyst at 60 ° C resulted in a maximum biodiesel yield of 87.3%.

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Synthesis and characterization of coal fly ash supported zinc oxide catalyst for biodiesel production using used cooking oil as feed

Renewable Energy ◽

10.1016/j.renene.2021.01.101 ◽

2021 ◽

Vol 170 ◽

pp. 302-314

Author(s):

Adeyinka S. Yusuff ◽

Aman K. Bhonsle ◽

Jayati Trivedi ◽

Dinesh P. Bangwal ◽

Lok P. Singh ◽

...

Keyword(s):

Zinc Oxide ◽

Fly Ash ◽

Oxide Catalyst ◽

Coal Fly Ash ◽

Biodiesel Production ◽

Synthesis And Characterization ◽

Cooking Oil ◽

Used Cooking Oil

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Utilization of eggshell waste as low-cost solid base catalyst for biodiesel production from used cooking oil

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/67/1/012021 ◽

2017 ◽

Vol 67 ◽

pp. 012021 ◽

Cited By ~ 4

Author(s):

N P Asri ◽

B Podjojono ◽

R Fujiani ◽

Nuraini

Keyword(s):

Low Cost ◽

Biodiesel Production ◽

Solid Base ◽

Base Catalyst ◽

Solid Base Catalyst ◽

Cooking Oil ◽

Used Cooking Oil ◽

Eggshell Waste

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Konsentrasi Katalis dan Suhu Optimum pada Reaksi Esterifikasi menggunakan Katalis Zeolit Alam Aktif (ZAH) dalam Pembuatan Biodiesel dari Minyak Jelantah

Jurnal Natur Indonesia ◽

10.31258/jnat.14.3.219-226 ◽

2013 ◽

Vol 14 (3) ◽

pp. 219 ◽

Cited By ~ 3

Author(s):

Dwi Kartika ◽

Senny Widyaningsih

Keyword(s):

Physical Properties ◽

Natural Zeolite ◽

Oil And Gas ◽

Catalyst Concentration ◽

Waste Cooking Oil ◽

Effect Of Temperature ◽

Molar Ratio ◽

Cooking Oil ◽

Biodiesel Synthesis ◽

Directorate General

Transesterification of waste cooking oil into biodiesel using KOH catalyst with and without esterification process usingactivated natural zeolite (ZAH) catalyst has been carried out. Activation of the zeolite was done by refluxing with HCl 6Mfor 30 min, followed calcining and oxydized at 500oC for 2 hours, consecutively. The transesterification without esterificationprocess were done using KOH catalyst 1% (w/w) from oil and methanol weight and oil/methanol molar ratio 1:6 at 60oC. Theesterification reaction was also done using ZAH catalyst then continued by transesterification using KOH catalyst inmethanol media. In order to study the effect of ZAH catalyst concentration at constant temperature, the catalysts werevaried, i.e. 0, 1, 2, and 3% (w/w). To investigate the effect of temperature, the experiments were done at various temperaturefrom 30, 45, 60, and 70oC at constant catalyst concentration. The conversion of biodiesel was determined by 1H-NMRspectrometer and physical properties of biodiesel were determined using ASTM standard methods. The results showedthat the transesterification using KOH catalyst without esterification produced biodiesel conversion of 53.29%. The optimumcondition of biodiesel synthesis via esterification process were reached at 60oC and concentration of ZAH catalyst of2% (w/w), that could give biodiesel conversion = 100.00%. The physical properties were conformed with biodiesel ASTM2003b and Directorate General of Oil and Gas 2006 specification.

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Synthesis of Ti(SO 4 )O solid acid nano-catalyst and its application for biodiesel production from used cooking oil

Applied Catalysis A General ◽

10.1016/j.apcata.2016.08.031 ◽

2016 ◽

Vol 527 ◽

pp. 81-95 ◽

Cited By ~ 67

Author(s):

Jabbar Gardy ◽

Ali Hassanpour ◽

Xiaojun Lai ◽

Mukhtar H. Ahmed

Keyword(s):

Solid Acid ◽

Biodiesel Production ◽

Cooking Oil ◽

Used Cooking Oil ◽

Nano Catalyst

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Techno-economical and Experimental Analysis of Biodiesel Production from Used Cooking Oil

BioPhysical Economics and Resource Quality ◽

10.1007/s41247-018-0050-7 ◽

2019 ◽

Vol 4 (1) ◽

Cited By ~ 11

Author(s):

Sumitkumar Joshi ◽

Pradipkumar Hadiya ◽

Manan Shah ◽

Anirbid Sircar

Keyword(s):

Experimental Analysis ◽

Biodiesel Production ◽

Cooking Oil ◽

Used Cooking Oil

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Alternative Raw Materials to Produce Biodiesel through Alkaline Heterogeneous Catalysis

Catalysts ◽

10.3390/catal9080690 ◽

2019 ◽

Vol 9 (8) ◽

pp. 690 ◽

Cited By ~ 5

Author(s):

Edgar M. Sánchez Faba ◽

Gabriel O. Ferrero ◽

Joana M. Dias ◽

Griselda A. Eimer

Keyword(s):

Heterogeneous Catalysis ◽

Raw Materials ◽

Fatty Acid Content ◽

Biodiesel Production ◽

Molar Ratio ◽

Absolute Methanol ◽

Solid Catalyst ◽

Oil Refineries ◽

Cooking Oil ◽

Used Cooking Oil

Recent research focuses on new biodiesel production and purification technologies that seek a carbon-neutral footprint, as well as cheap, renewable and abundant raw materials that do not compete with the demand for food. Then, many attractive alternatives arise due to their availability or low-cost, such as used cooking oil, Jatropha oil (non-edible) or byproducts of vegetable oil refineries. Due to their composition and the presence of moisture, these oils may need a pretreatment to reach the established conditions to be used in the biodiesel production process so that the final product complies with the international quality standards. In this work, a solid catalyst based on 10 wt % sodium oxide supported on mesoporous silica SBA-15, was employed in the transesterification of different feedstocks (commercial sunflower and soybean oil, used cooking oil, acid oil from soapstock and Jatropha hieronymi oil) with absolute methanol in the following reaction conditions—2–8 wt % catalyst, 14:1 methanol to oil molar ratio, 60 °C, vigorous magnetic stirring and 5 h of reaction. In this way, first- and second-generation biodiesel was obtained through heterogeneous catalysis with methyl ester yields between 52 and 97 wt %, depending on the free fatty acid content and the moisture content of the oils.

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