Effect of Time and Concentration of Sulfuric Acid on Yield Bioethanol Produced In Making Bioethanol from Peat Soil

Roni, Kiagus Ahmad; Hastarina, Merisha; Herawati, Netty

doi:10.1088/1742-6596/1167/1/012056

Cited by 8 publications

(7 citation statements)

References 6 publications

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“…In addition, the more yeast periods with the same fermentation time, the amount of bioethanol concentration decreases. This difference in results is caused by the activity of bacteria that are reduced in nutrient sources (YSC, NPK and Urea), so that the longer the fermentation time is carried out, the impact on the level of bioethanol produced [5,24]. The concentration of bioethanol decreased very significantly and was the lowest in SCC-7 with a yeast period of 2.5 g against a fermentation time of 6 days, which was 18.210%.…”

Section: Gas Chromatography (Gc) Analysismentioning

confidence: 99%

Characterization of Bioethanol from Tuber of Porang Waste Fermented with Saccharomyces cerevisiae Enzyme: Effect of Fermentation Time and Yeast Ratio

Ridara,

Muhammad,

Setiawan

et al. 2023

J. Tek. Kim. Ling

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The production of bioethanol from non-plant lignocellulosic materials has reached a commercial scale and is advocated as a possible solution for the decarbonization of the transport sector. Porang pulp tubers can be converted into bioethanol because they have abundant potential due to their high glucomannan content. The purpose of this study was to determine the effect of fermentation time and the ratio of yeast addition on bioethanol production. The methods used are hydrolysis, fermentation and distillation methods. The hydrolysis process used 5% (v/v) HCl catalyst, the fermentation process with 6 gr sample powder tuber of waste used Saccharomyces cerevisiae bacteria with varying ratios of 2.5, 4 and 6.5 g and variations in fermentation time for 2, 4 and 6 days at 38-40˚C. The results showed that the duration of fermentation had a significant effect on the yield of bioethanol, where microorganisms have the opportunity to break down more glucose to produce bioethanol. While the ratio of the addition of yeast added to the fermentation process, the greater the ratio of the addition of yeast, the greater the bioethanol produced. Where the addition of 6.5 grams of yeast and 6 days of fermentation time, resulted in a yield of 9.889%, a bioethanol concentration of 37.599%, a refractive index of 1.3642 and a density of 1.04 g/ml.

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Section: Gas Chromatography (Gc) Analysismentioning

confidence: 99%

Characterization of Bioethanol from Tuber of Porang Waste Fermented with Saccharomyces cerevisiae Enzyme: Effect of Fermentation Time and Yeast Ratio

Ridara,

Muhammad,

Setiawan

et al. 2023

J. Tek. Kim. Ling

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“…This result agreed with the experiment on the effect of time and concentration of sulphuric acid on the yields of bioethanol from peat soil and concluded that a period of 6 days yielded the best outcome and a concentration of 3M produced the best yield of bioethanol production. (Kiagus et al, 2019).…”

Section: Effects Of Fermentation Daysmentioning

confidence: 99%

Bioethanol Production from Two Varieties (Saccharum Officinarum and Saccharum Barberi) Of Sugarcane Peels

Abu,

Bagudo,

Sani

et al. 2023

IJSGS

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Provision of an alternative clean source of fuel with less cost, will reduce fossil fuel demand. Pollution is the major environmental problem. Air pollution is among the three types of pollution where harmful substances such as CO2 and CO are introduced to the environment and cause harm to humans and animals. Fossil fuel combustion from automobiles and industries causes this type of pollution. There is need to replace another source of fuel with renewable feedstock such as the peels of Saccharum officinarum and Saccharum barberi which are lignocellulose materials to produce bioethanol that has a lower impact on air pollution and the Ozone layer which causes Green-House effect than fossil fuels. Dilute H2SO4 at different concentrations of 1M,2M,3M,4M and 5M were replicated into three different parts respectively as hydrolysing solution. Saccharomyces cerevisiae was used as fermentation enzymes. Different pH values of 5, 6 and 7 was used for fermentation periods of 5, 6 and 7 days, respectively. The Bioethanol was distilled by the use of fractional distillation. Hydrolysed samples of 3M for 6th day of both Saccharum officinarum and Saccharum barberi produced the best yields of bioethanol at the pH of 5 and 5M hydrolysed samples of both Saccharum officinarum and Saccharum barberi produced the least bioethanol for all pH values and fermentation days. The Bioethanol produced was blended with kerosene fuel to create EK10 and EK20 kerosene-bioethanol blends for use as a fuel source in a kerosene lamp. EK10 blend took 126 hours to burn in a rotary kerosene lamp, while EK20 blend took 167 hours to burn-off in the same kerosene lamp. Hydrolysed H2SO4 of 3M, pH 5 and fermentation period of 6 days for both Saccharum officinarum and Saccharum barberi shows the best sample to produce bioethanol. The bioethanol kerosene blend EK10 and E20 was concluded to show long period of burning with clean soot in a rotary kerosene lamp, therefore the bioethanol kerosene blends can be used as substitutes for kerosene fuel.

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“…The cellulose yield was drastically reduced from 60.36% to 13.10% when acid hydrolysis was performed at 15 min and 60 min, respectively. The longer the hydrolysis time, the more cellulose was converted into simple glucose [37], resulting in less cellulose isolated from the OPEFB. ANOVA on the yield of cellulose isolated based on acid concentration and hydrolysis time is available in Supplementary Data (Table S2).…”

Section: Effect Of Acid Concentration and Time On The Yield Of Cellulosementioning

confidence: 99%

Valorization of Oil Palm Empty Fruit Bunch for Cellulose Fibers: A Reinforcement Material in Polyvinyl Alcohol Biocomposites for Its Application as Detergent Capsules

et al. 2022

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Cellulose fibers isolated from oil palm empty fruit bunches (OPEFB) have been studied as a potential reinforcement for polyvinyl alcohol (PVA) biocomposite. Analysis of variance (ANOVA) showed that all three parameters—hydrolysis temperature, time and acid concentration, as well as their interactions—significantly affected the yield of cellulose. Moving Least Squares (MLS) and Multivariable Power Least Squares (MPLS) models demonstrated good fitness. The model also proved that acid concentration was the dominant parameter, supported by the Fourier transform infrared spectroscopy (FTIR) analysis. Hydrolysis using 54% acid at 35 °C and 15 min achieved the highest cellulose yield of 80.72%. Cellulose-reinforced PVA biocomposite films demonstrated better mechanical strength, elongation at break, moisture barrier properties, thermal stability and poorer light transmission rate compared to neat PVA due to the high aspect ratio, crystallinity and good compatibility of cellulose fibers. These findings suggested the potential of cellulose fibers-reinforced PVA biocomposite film as water-soluble detergent capsules.

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Effect of Time and Concentration of Sulfuric Acid on Yield Bioethanol Produced In Making Bioethanol from Peat Soil

Cited by 8 publications

References 6 publications

Characterization of Bioethanol from Tuber of Porang Waste Fermented with Saccharomyces cerevisiae Enzyme: Effect of Fermentation Time and Yeast Ratio

Characterization of Bioethanol from Tuber of Porang Waste Fermented with Saccharomyces cerevisiae Enzyme: Effect of Fermentation Time and Yeast Ratio

Bioethanol Production from Two Varieties (Saccharum Officinarum and Saccharum Barberi) Of Sugarcane Peels

Valorization of Oil Palm Empty Fruit Bunch for Cellulose Fibers: A Reinforcement Material in Polyvinyl Alcohol Biocomposites for Its Application as Detergent Capsules

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