Assessing the Theoretical Prospects of Bioethanol Production as a Biofuel from Agricultural Residues in Bangladesh: A Review

Miskat, Monirul Islam; Ahmed, Ashfaq; Chowdhury, Hemal; Chowdhury, Tamal; Chowdhury, Piyal; Sait, Sadiq M.; Park, Young-Kwon

doi:10.3390/su12208583

Cited by 24 publications

(14 citation statements)

References 71 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, the less the compression ratio, the more the capability of waste heat recovery. (6) According to the results, there is a direct relationship between ethanol in fuel content and the ̇̇ℎ ⁄ ratio. As the percentage of ethanol in fuel increases, the ̇̇ℎ ⁄ ratio rises.…”

Section: Discussionmentioning

confidence: 96%

“…h = 0.01298D −0.2 p 0.8 T −0.55 ω 0.8 (5) where B, P and T are cylinder bore, instantaneous cylinder pressure and gas temperature, respectively. The average cylinder gas velocity ω is specified in Equation (6).…”

Section: Heat Transfermentioning

confidence: 99%

“…This has worsened environmental issues such as air quality degradation and global warming [1,2]. During recent years, different solutions such as using alternative fuels including biofuels have been considered for conventional vehicles in order to reduce the emissions of fossil fuels [3][4][5][6]. For using alternative fuels, researchers applied different methods to ameliorate the performance of engines consuming biofuels.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effects of Compression Ratio of Bio-Fueled SI Engines on the Thermal Balance and Waste Heat Recovery Potential

et al. 2021

View full text Add to dashboard Cite

In internal combustion engines, a significant share of the fuel energy is wasted via the heat losses. This study aims to understand the heat losses and analyze the potential of the waste heat recovery when biofuels are used in SI engines. A numerical model is developed for a single-cylinder, four-stroke and air-cooled SI engine to carry out the waste heat recovery analysis. To verify the numerical solution, experiments are first conducted for the gasoline engine. Biofuels including pure ethanol (E100), E15 (15% ethanol) and E85 (85% ethanol) are then studied using the validated numerical model. Furthermore, the exhaust power to heat loss ratio (Q˙ex/Q˙ht) is investigated for different compression ratios, ethanol fuel content and engine speed to understand the exhaust losses potential in terms of the heat recovery. The results indicate that heat loss to brake power ratio (Q˙ht/W˙b) increases by the increment in the compression ratio. In addition, increasing the compression ratio leads to decreasing the Q˙ex/Q˙ht ratio for all studied fuels. According to the results, there is a direct relationship between the ethanol in fuel content and Q˙ex/Q˙ht ratio. As the percentage of ethanol in fuel increases, the Q˙ex/Q˙ht ratio rises. Thus, the more the ethanol in the fuel and the less the compression ratio, the more the potential for the waste heat recovery of the IC engine. Considering both power and waste heat recovery, the most efficient fuel is E100 due to the highest brake thermal efficiency and Q˙ex/Q˙ht ratio and E85, E15 and E00 (pure gasoline) come next in the consecutive orders. At the engine speeds and compression ratios examined in this study (3000 to 5000 rpm and a CR of 8 to 11), the maximum efficiency is about 35% at 5000 rpm and the compression ratio of 11 for E100. The minimum percentage of heat loss is 21.62 happening at 5000 rpm and the compression ratio of 8 by E100. The minimum percentage of exhaust loss is 35.8% happening at 3000 rpm and the compression ratio of 11 for E00. The most Q˙ex/Q˙ht is 2.13 which is related to E100 at the minimum compression ratio of 8.

show abstract

Section: Discussionmentioning

confidence: 96%

Section: Heat Transfermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effects of Compression Ratio of Bio-Fueled SI Engines on the Thermal Balance and Waste Heat Recovery Potential

et al. 2021

View full text Add to dashboard Cite

show abstract

“…The production of bioethanol from bagasse can be obtained by engineering the evolution of the super active fermentation yeast Saccharomyces cerevisiae through the suppression gene deletion process. This may have detrimental effects on fermentation and the overexpression of all metabolic pathways for the fermentation of glucose, xylose, arabinose sugars and processes for higher tolerance to inhibitors [70]. There are many benefits that may be obtained from bagasse waste as shown in the following table (Table 3).…”

Section: Methodsmentioning

confidence: 99%

Potential of Bagasse as Raw Material for Lignosulfonate Surfactant

Setiati¹,

Fatahanissa²,

Riswati³

et al. 2021

Sugarcane - Biotechnology for Biofuels

View full text Add to dashboard Cite

Anionic surfactants are generally used in surfactant injections because they are good, resistant in storage and stable. Furthermore, Commercially, anions are produced in the form of carboxylates, sulfates, sulfonates, phosphates, or phosphonates. The surfactants used in the process of implementing Enhanced Oil Recovery (EOR) are generally petroleum-based, such as Petroleum Sulfonate. Therefore, an increase in oil price, leads to an increase in the price of surfactant and the operational costs becomes relatively expensive. Lignosulfonate is a type of anionic surfactant which is made with lignin as raw material. This lignin is found in many plants, including wood stalks, plant leaves, peanut shells, corn cobs, bagasse, empty bunches of oil palm and wheat straw. Based on the results of previous studies, 25% of lignin component was discovered in bagasse. This may be a consideration that there is enough lignin in bagasse to be used as raw material in the production of lignosulfonate vegetable surfactants. Furthermore, lignin from bagasse is used because bagasse is easy to obtain, cheap and an environmental friendly vegetable waste. Currently, bagasse is only used as fuel in steam boilers and papermaking, cement and brick reinforcement, a source of animal feed, bioethanol, activated charcoal as adsorbent and compost fertilizer. This is a consideration to optimize the use of bagasse to become lignosulfonate as an alternative for surfactants in the petroleum sector. The purpose of this study is to show that lignin from bagasse has the potential of becoming a lignosulfonate surfactant. There are several studies that have processed bagasse into sodium lignosulfonate. The component test on the results showed that the surfactant component of sodium lignosulfonate from bagasse was almost the same as the commercial standard lignosulfonate component. Furthermore, the results of the HLB (Hydrophilic–Lipophilic Balance) value test show that the sodium lignosulfonate surfactant from bagasse can function as an emulsion form which is a required parameter for the surfactant injection mechanism. Based on the discussion of the study results, bagasse has the potential as a raw material to be processed into lignosulfonates.

show abstract

“…A wide range of waste types can be used as feedstock for biogas production. For instance, sludge from water resource recovery facilities (WRRFs) [3], agricultural residues [4][5][6][7], paper waste [8,9], food waste [10], and livestock manure [11,12]. The yield and composition of biogas from AD depend largely upon the type of feedstock and operating conditions [13,14].…”

Section: Introductionmentioning

confidence: 99%

Conversion of biogas from anaerobic digestion to single cell protein and bio-methanol: mechanism, microorganisms and key factors - A review

Salehi¹,

Chaiprapat

2021

Environmental Engineering Research

View full text Add to dashboard Cite

Biogas is a mixture of mainly CH 4 and CO 2 , which can be generated from anaerobic digestion of organic materials. The use of biogas is mostly limited to thermal energy and electricity generation. However, the abundance of cheap shale gas and solar energy could drive out biogas for such applications in the near future. Hence, alternative applications of biogas have recently received great attention among researchers across the globe. This review, for the first time, discusses the feasibility of the bioconversion of biogas to value-added products, including single cell protein as animal feed supplement, and methanol that is an important building block in the chemical industries. Mechanisms of the process, microorgnisms involved and key parameters affecting their efficiency are discussed in detail. Some future research needs are suggested in order to deepen our understanding of these biochemical processes.

show abstract

Assessing the Theoretical Prospects of Bioethanol Production as a Biofuel from Agricultural Residues in Bangladesh: A Review

Cited by 24 publications

References 71 publications

Effects of Compression Ratio of Bio-Fueled SI Engines on the Thermal Balance and Waste Heat Recovery Potential

Effects of Compression Ratio of Bio-Fueled SI Engines on the Thermal Balance and Waste Heat Recovery Potential

Potential of Bagasse as Raw Material for Lignosulfonate Surfactant

Conversion of biogas from anaerobic digestion to single cell protein and bio-methanol: mechanism, microorganisms and key factors - A review

Contact Info

Product

Resources

About