PEMBUATAN BIODIESEL DARI MINYAK DEDAK PADI DENGAN REAKSI TRANSESTERIFIKASI MENGGUNAKAN KATALIS HETEROGEN ZEOLIT ALAM YANG DIMODIFIKASI DENGAN KOH

Biodiesel was usually produced from transesterification using alchohol. In this research rice bran oil was used as feedstock and methanol was used as reagent. The transesterification of rice bran oil had studied using KOH/natural zeolite as a solid heterogeneous catalyst. The objective of this study was to discover the effectivess of using natural zeolite modified by KOH as heterogeneous catalysts in the production of biodiesel from rice bran oil (RBO). KOH/natural zeolite catalyst was prepared by modification through impregnation method which was conducted on various KOH concentration (75 gram/100 ml – 175 gram/100 ml). Transesterification reaction was conducted at 60 ºC, 500 rpm, and various amount of catalyst (2-4%), reaction time (1,5-3,5 hour) and molar ratio alcohol/oil (8:1-12:1). The highest yield of biodiesel was 98,71%, which was obtained by using 2% catalyst, reaction time 2 hour, molar ratio alcohol/oil 10:1. Natural zeolite as heterogeneous catalyst which modified by KOH could get the higher yield biodiesel on transesterification.

Download Full-text

TRANSESTERIFIKASI MINYAK BIJI KARET (Hevea brasiliensis) MENGGUNAKAN KATALIS HETEROGEN CANGKANG KEPITING LIMBAH SEAFOOD TERMODIFIKASI K2O

Jurnal Kimia ◽

10.24843/jchem.2019.v13.i01.p01 ◽

2019 ◽

Vol 13 (1) ◽

pp. 1 ◽

Cited By ~ 1

Author(s):

N. K. D. Astuti ◽

I N. Simpen ◽

I W. Suarsa

Keyword(s):

Methyl Ester ◽

Heterogeneous Catalyst ◽

Hevea Brasiliensis ◽

Heterogeneous Catalysts ◽

Seed Oil ◽

Molar Ratio ◽

Impregnation Method ◽

Crab Shell ◽

Rubber Seed Oil ◽

Rubber Seed

The CaO heterogeneous catalysts can be prepared by CaCO3 calcination process, with one source of CaCO3 being a crab shell from seafood waste. The preparation of the heterogeneous catalyst was successfully carried out by modification with KOH using a wet impregnation method at 800oC for 5 hours. The purpose of this research is to determine the physical and chemical characteristics of heterogeneous catalyst of K2O-modified crab shell and to examine the heterogeneous catalyst of K2O-modified shells in converting rubber seed oil into biodiesel. The results showed that the lowest basic alkalinity possessed without modified catalyst (1.0428 mmol g-1) and the highest alkali possessed potassium-modified catalyst (1.8314 mmol g-1). Characterization of specific surface area of ??crab shells without and with modified K2O were relatively the same. The surface morphology of the catalyst without and K2O modified was uniform. The catalyst examination results for conversion of rubber seed oil (Hevea brasiliensis) to biodiesel, the optimum catalyst concentration of 3% and the molar ratio of oil:methanol of 1:9 capable converting to biodiesel with the yield of 91.05%. The content of biodiesel were stearic methyl ester, linoleic methyl ester, linolenic methyl ester, and palmitic methyl ester.

Download Full-text

Biodiesel Production from Rice Bran Oil over Modified Natural Zeolite Catalyst

International Journal of Technology ◽

10.14716/ijtech.v9i2.1084 ◽

2018 ◽

Vol 9 (2) ◽

pp. 400 ◽

Cited By ~ 4

Author(s):

Arif Hidayat ◽

Nur Indah Fajar Mukti ◽

Bagus Handoko ◽

Bachrun Sutrisno

Keyword(s):

Rice Bran ◽

Natural Zeolite ◽

Zeolite Catalyst ◽

Rice Bran Oil ◽

Biodiesel Production

Download Full-text

Biodiesel production from rice bran oil by transesterification using heterogeneous catalyst natural zeolite modified with K2CO3

IOP Conference Series Materials Science and Engineering ◽

10.1088/1757-899x/309/1/012107 ◽

2018 ◽

Vol 309 ◽

pp. 012107 ◽

Cited By ~ 3

Author(s):

Taslim ◽

Iriany ◽

O Bani ◽

S Z D M Parinduri ◽

P R W Ningsih

Keyword(s):

Heterogeneous Catalyst ◽

Rice Bran ◽

Natural Zeolite ◽

Rice Bran Oil ◽

Biodiesel Production

Download Full-text

PENGARUH RASIO MOLAR MINYAK JELANTAH DENGAN METANOL DAN SUHU REAKSI DALAM REAKSI TRANSESTERFKASI TERKATALIS CaO/ZEOLIT ALAM TERHADAP YIELD BIODIESEL

Jurnal Kimia ◽

10.24843/jchem.2016.v10.i01.p07 ◽

2016 ◽

Author(s):

Ana Malia ◽

Putu Suarya ◽

Ida Ayu Raka Astiti Asih ◽

I Made Wisnu Adhi Putra

Keyword(s):

Specific Surface ◽

Surface Area ◽

Specific Surface Area ◽

Natural Zeolite ◽

Transesterification Reaction ◽

Molar Ratio ◽

High Yield ◽

Co2 Absorption ◽

Impregnation Method ◽

Bet Method

The research of transesterification reaction catalyzed by CaO/natural zeolite has been carried out. This work was aimed to obtain the high yield of biodiesel. The supporting process of CaO on natural zeolite (CaO/ZAA) was done by using wet impregnation method and characterization of CaO/ZAA was performed using XRD, FTIR and the determination of specific surface area of natural zeolite as CaO supporter was performed by BET method. This research aims to study the influence of transesterification reaction which was executed by varying molar ratio of oil to methanol and reaction temperature. Analysis of functional groups and minerals using FTIR and XRD, respectively, showed no significant changes before and after the impregnation of CaO on natural zeolites. CaO supported on natural zeolite was undetected by FTIR. Instead, it was detected by the vibration of carbonate groups as the result of the CO2 absorption by CaO and the result of surface area analysis using BET method showed that the greater the size of natural zeolite, the smaller the specific surface area of catalyst. The result analysis using BET method showed that the spesific surface area of 200 mesh sized natural zeolite as CaO supporter was 9.993 m2/g. The simple gravimetric test revealed that the amount of CaO supported on 200 mesh sized natural zeolite was 0.2155 g/g. It was concluded that CaO/ZAA 200 mesh was the most suitable catalyst which was then used in the production of biodiesel. The transesterification result showed that the highest biodiesel yield of 98.34% was gained at molar ratio of oil to methanol of 1:15 and at the temperature of 60 oC. The GC-MS analysis indicated that the main components of the biodiesel were methyl palmitate and methyl oleate.

Download Full-text

Transesterification Reaction from Rice Bran Oil to Biodiesel over Heterogeneous Base Calcium Oxide Nanoparticles Catalyst

Science & Technology Indonesia ◽

10.26554/sti.2020.5.3.62-69 ◽

2020 ◽

Vol 5 (3) ◽

pp. 62

Author(s):

Nur Fatin Sulaiman ◽

Abdul Rahim Yacob ◽

Siew Ling Lee

Keyword(s):

Calcium Oxide ◽

Rice Bran ◽

Rice Bran Oil ◽

Earth Metal ◽

Single Step ◽

Transesterification Reaction ◽

Bet Surface Area ◽

Base Catalyst ◽

Heterogeneous Base Catalyst ◽

Heterogeneous Base

This research focused on the use of heterogeneous base catalyst, calcium oxide (CaO), an alkaline earth metal oxide to produce biodiesel. The aim of this research is to investigate the potential of commercial calcium carbonate, CM-CaCO3 to be transformed to nanostructured CaO and further used as a heterogeneous base catalyst for single step transesterification of rice bran oil to biodiesel. The CaO samples were calcined at temperatures of 100°C to 700°C under vacuum at 10-3 mbar. TGA-DTA result displayed that the calcination temperature for CM-CaCO3 to form CaO must be higher than 600°C. This was supported by FTIR results which indicated the complete formation of CaO at 700°C. XRD showed the rhombohedral CaCO3 and hexagonal Ca(OH)2 were totally disappeared, leaving only crystalline cubic CaO at 700oC. Interestingly, CaO obtained at 700°C (CaO-700) showed the larger BET surface area and highest basicity with 11.5 m2g-1 and 1.959 mmol/g, respectively. The prepared nanostructured CaO-700 was selected and applied for single step transesterification reaction of rice bran oil to produce biodiesel. NMR and GC-FID results further confirmed that biodiesel was successfully formed using CaO-700 as catalyst.

Download Full-text

Evaluation of the tribological properties and oxidative stability of epoxidized and ring opened products of pure rice bran oil

Proceedings of the Institution of Mechanical Engineers Part J Journal of Engineering Tribology ◽

10.1177/1350650120950535 ◽

2020 ◽

pp. 135065012095053

Author(s):

Ananthan D Thampi ◽

Abhishek R John ◽

M Muhammed Arif ◽

S Rani

Keyword(s):

Hydrogen Peroxide ◽

Vegetable Oils ◽

Rice Bran ◽

Rice Bran Oil ◽

Research Work ◽

Viscosity Index ◽

Oxidation Stability ◽

High Viscosity ◽

Molar Ratio ◽

Four Levels

Vegetable oils constitute a potential base stock for bio-lubricants, which has good biodegradability, high flash point, high viscosity index and excellent boundary lubrication properties. They also possess some limitations like low thermal and oxidation stability, poor low temperature properties and narrow range of viscosities. These limitations can be altered by modifying the vegetable oils chemically or by providing additives into the oils. This research work focused on the chemical modification of pure rice bran oil by epoxidation process using 30% hydrogen peroxide and glacial acetic acid. The epoxidized rice bran oil was then subjected to ring opening process using butanoic acid. The epoxidation process was optimized with four factors (Temperature, Time, Weight % of Catalyst, Hydrogen Peroxide molar ratio), each factors having four levels. The lubricant properties of pure rice bran oil (RBO), epoxidized rice bran oil (ERBO) and ring opened rice bran oil (RRBO) were studied. It was noted that the lubricant properties of ERBO and RRBO were better compared to pure RBO.

Download Full-text

Characterization and Application of Catalysts Hard Green Clay and MoO3/ Hard Green Clay in Transesterification Reaction of Soybean Oil

Materials Science Forum ◽

10.4028/www.scientific.net/msf.958.29 ◽

2019 ◽

Vol 958 ◽

pp. 29-34

Author(s):

Fabiana Medeiros do Nascimento Silva ◽

Erivaldo Genuíno Lima ◽

Tellys Lins de Almeida Barbosa ◽

Meiry Gláucia Freire Rodrigues

Keyword(s):

Soybean Oil ◽

Transesterification Reaction ◽

Molar Ratio ◽

Impregnation Method ◽

X Ray Diffraction ◽

Design Assessment ◽

X Ray ◽

Molybdenum Metal ◽

The Individual ◽

Green Clay

The present study describes the preparation of catalyst MoO3 supported on smectite clay by the solution impregnation method and its evaluation as a heterogeneous catalyst in the production of biodiesel from soybean oil. The individual effects of catalyst (hard green clay and MoO3/hard green clay) on kinematic viscosity of produced biodiesel and conversion were investigated. The samples were characterized by X-ray diffraction, X-ray fluorescence spectroscopy and N2 adsorption-desorption. Conditions of soybean oil transesterification were: 5% catalyst by weight, 1:12 oil to methanol molar ratio, at 200 oC for 60 minutes. Patterns of X-ray diffraction showed the characteristic peaks of the structure of smectite. The results of X-ray diffraction suggests that MoO3 species exist as highly dispersed surface species. Molybdenum metal identified as effective catalysts for the transesterification reaction of soybean oil with methanol. A preliminary design assessment show that this catalysts (MoO3/HGC) is sufficiently active achieving conversion in excess of 62,07% at temperature below 200 oC.

Download Full-text

MODIFIED MESOPOROUS Γ-ALUMINA FROM KANO KAOLIN IN HETEROGENEOUS TRANSESTERIFICATION OF RICE BRAN OIL

Jurnal Teknologi ◽

10.11113/jt.v77.6360 ◽

2015 ◽

Vol 77 (13) ◽

Cited By ~ 1

Author(s):

Abdu Muhammad Bello ◽

Abdul Rahim Yacob ◽

Kamaluddeen Suleiman Kabo

Keyword(s):

Fourier Transform ◽

Rice Bran ◽

Fossil Fuel ◽

Rice Bran Oil ◽

Attenuated Total Reflection ◽

Resonance Spectroscopy ◽

High Catalytic Activity ◽

Impregnation Method ◽

Alternative Source ◽

Infra Red

The environmental problems caused by the excessive usage of fossil fuel, prompted the need for an alternative source of energy. Renewable energy from biodiesel is one of the most promising substitutions of fossil fuel due its environmental-friendliness. In the present work NaOH-modified γ-alumina heterogeneous base catalysts were prepared using wet impregnation method, and characterized by Nitrogen Adsorption Analysis (BET), Fourier Transform Infra-Red (FTIR), X-Ray Powder Diffraction (XRD), basic back titration, and Temperature Programmed Desorption-CO2 (CO2-TPD). The catalysts were tested for the transesterification of rice bran oil with methanol, and the biodiesel product characterized by Fourier Transform Infra-Red-Attenuated Total Reflection (FTIR-ATR) and Nuclear Magnetic Resonance Spectroscopy (NMR) analyses. Catalyst synthesize with 50% NaOH was found to have the highest basic sites and when applied for the transesterification of rice bran oil it gave the highest yield of 81.2%. The high catalytic activity is attributed to the formation of NaAlO2 that is believed to contribute to the basicity of the catalyst.

Download Full-text

Biodiesel Production using Synthesized HY Zeolite Catalyst

Journal of Petroleum Research and Studies ◽

10.52716/jprs.v11i3.529 ◽

2021 ◽

Vol 11 (3) ◽

pp. 1-18

Author(s):

Dr. Ban A. Al-Tabbakh ◽

Sattar J. Hussein ◽

Zena A. Hadi

Keyword(s):

Oleic Acid ◽

Reaction Time ◽

Sunflower Oil ◽

Zeolite Catalyst ◽

Weight Ratio ◽

Biodiesel Production ◽

Molar Ratio ◽

Hy Zeolite ◽

Factors Affecting ◽

Acid Esterification

Biodiesel was produced using oleic acid esterification and transesterification of the sunflower oil methods. Many different factors affecting production procedures were studied such as reaction temperature, the molar ratio of ethanol to oil, reaction time and concentration of HY catalyst. Different techniques such as TGA, FTIR and Mass spectroscopy were used to syntheses biodiesel. Results showed that 78% of oleic acid maximum conversion was obtained at a temperature of 70oC with molar ratio 12:1 ethanol: oil with 5 wt.% catalysts at 90 min reaction time, while for sunflower oil conversion of 98% at 200oC with 5 weight ratio of ethanol: oil at a time of 3 h was successfully obtained.

Download Full-text