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Performance Evaluation of Superior Accessions of Jatropha Curcas in Tropical Climate of Madhya Pradesh, India 印度中央邦热带气候条件下麻疯树优良种质性能评价
Pub Date : 1900-01-01 DOI: 10.5958/J.0976-3015.1.1.018
A. Pandey, P. Bhargava, A. Mandal
Escalating petroleum prices and alarmingly depleting fossil fuel reserves have brought biofuel to the forefront of energy crisis management plans in many developing countries. Due to stagnating domestic crude oil production, India imports approximately 72 percent of its petroleum requirement. The best alternatives are bio-fuels (nontoxic and biodegradable) and among them, bio-diesel have immense potential to mitigate the current and future energy needs of the country. To meet this challenging and catastrophic situation, Jatropha can act as an environmental friendly alternative feedstock for bio-diesel production. The ‘Jatropha oil’ can be easily processed to partially or fully replace petroleum-based diesel fuel. Thus, the use of this plant for large-scale biodiesel production is of great interest with regard to solving the energy shortage, reducing greenhouse gas (GHG) emissions, rural employment generation and increasing the income of farmers. For this, vast area should have to be brought under Jatropha plantation with quality planting material particularly in terms of higher yield and oil content of the seeds. With the objective of evaluating the potential and performance of superior accessions of Jatropha under tropical climate, a systematic research has been conducted at Tropical Forest Research Institute, Jabalpur under the national network programme of National Oilseeds and Vegetable Oils Development Board. In the study 33 accessions were evaluated for their growth performance (height, collar diameter, no. of branches, fruiting pattern, fruit yield, seed characteristics and oil percentage). The trials were established during 2005 in randomized block design with three replications. Growth data was recorded regularly and statistically analyzed. The study revealed that IGAU-1, TNMC-5 and TFRI-2 accessions are performing better among all other accessions. This study will provide baseline information for planning further Jatropha curcas improvement programmes.
在许多发展中国家,不断上涨的石油价格和令人震惊的化石燃料储量消耗,使生物燃料成为能源危机管理计划的首要问题。由于国内原油生产停滞不前,印度大约72%的石油需求依靠进口。最好的替代品是生物燃料(无毒且可生物降解),其中生物柴油具有巨大的潜力,可以缓解该国当前和未来的能源需求。为了应对这种具有挑战性和灾难性的情况,麻疯树可以作为一种环境友好的替代原料生产生物柴油。“麻疯树油”可以很容易地加工成部分或全部替代石油基柴油燃料。因此,在解决能源短缺、减少温室气体(GHG)排放、创造农村就业机会和增加农民收入方面,利用该工厂大规模生产生物柴油具有重大意义。为此,必须大面积种植麻疯树,使用优质种植材料,特别是在产量和种子含油量方面。为了评估热带气候下优质麻疯树的潜力和性能,在国家油籽和植物油开发委员会的国家网络方案下,在贾巴尔普尔热带森林研究所进行了一项系统研究。本研究对33个品种的生长性能(株高、株径、株数和株数)进行了评价。分枝,结果模式,果实产量,种子特性和含油率)。试验于2005年建立,采用随机区组设计,有3个重复。定期记录生长数据并进行统计分析。研究表明,IGAU-1、TNMC-5和tfr -2基因在所有其他基因中表现较好。这项研究将为进一步规划麻疯树改良计划提供基线信息。
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引用次数: 3
Synthesis and Characterisation of Soya Bean Oil Based Biodiesel under Optimal Sonic Frequency 最佳声频下豆油基生物柴油的合成与表征
Pub Date : 1900-01-01 DOI: 10.5958/J.0976-4763.4.1.004
K. L. Konge, Dinesh Balgude, A. Sabnis
The present study reports the transesterification of soya bean oil with methanol using sodium hydroxide (NaOH) as catalyst under the influence of simultaneous sonic and mechanical energies. The purpose was to optimise the optimal sonic frequency of ultrasonic reactor and optimal reaction conditions, including the amount of catalyst, the oil/methanol molar ratio was also investigated to achieve highest possible yield of soya bean oil methyl ester (SOME) to act as biodiesel. Experimental results showed that simultaneous sonication and mechanical mixing of soya bean oil with methanol might be a potential alternative route compared with the conventional base catalysed method. High reaction yields of ~96% were obtained at 60% sonic frequency, mild irradiation power of 350 W, oil to methanol molar ratio of 1:6, mechanical agitation speed of 200–300 rpm and temperature of 45°C in relatively short reaction time 60 min using 0.2 wt % NaOH. Further, the synthesised SOME was characterised for density, kinematic viscosity, acid number, cetane number, calorific value, flash point, distillation temperature, sulphated ash content, carbon residue and fatty acid composition according to the American standard testing method of analysis (ASTM) to ensure the quality of SOME to act as biodiesel.
本文报道了在声能和机械能同时作用下,以氢氧化钠(NaOH)为催化剂进行大豆油与甲醇的酯交换反应。通过优化超声波反应器的最佳声频和反应条件,包括催化剂用量、油/甲醇的摩尔比,以获得最高收率的大豆油甲酯(SOME)作为生物柴油。实验结果表明,与传统的碱催化方法相比,同时超声和机械混合大豆油与甲醇可能是一种潜在的替代途径。以0.2 wt % NaOH为原料,在60%声频、350 W轻度辐照功率、油与甲醇摩尔比为1:6、机械搅拌速度200-300转/分、温度45℃、反应时间60 min的条件下,反应得率高达96%。根据美国标准测试分析方法(ASTM)对合成的SOME进行了密度、运动粘度、酸值、十六烷值、热值、闪点、蒸馏温度、硫酸灰分、残碳和脂肪酸组成等方面的表征,以保证其作为生物柴油的质量。
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引用次数: 0
Optimisation and Kinetics of Rubber Seed Oil Biodiesel Production 橡胶籽油生物柴油生产工艺优化及动力学研究
Pub Date : 1900-01-01 DOI: 10.5958/0976-4763.2016.00008.8
W. Aisabor, Y. Lukman, A. Otaru, A. E. Anakhu, S. Otoikhian
Due to the increasing yearn to go environment friendly, keen interest has been placed on biofuels, this leads to further studies and research in biofuels. A search for suitable vegetable/plant oil that can work just as fossil fuels and be ecofriendly was made. Hence, the study of this work investigates the production of biodiesel from non-edible Hevea brasiliensis oil. The process was catalysed by two-step acid base transesterification. Reaction parameters, such as reaction temperature and time were studied. The yield conversion of biodiesel was found to be 50.2% under the optimum conditions of 1.0 wt % NaOH and 6:1 methanol: oil molar ratio at 60°C for a reaction time of 75 min. The kinetic study was carried out at various temperatures. The conversion of triglycerides into methyl esters obeys the pseudo first-order mechanism. The reaction-rate constants and activation energies were determined. The physical and chemical characteristics of H. brasiliensis and biodiesel were determined and compared with standard value.
由于人们对环境友好的渴望越来越强烈,人们对生物燃料产生了浓厚的兴趣,这导致了生物燃料的进一步研究和研究。寻找合适的植物油,可以像化石燃料一样工作,是生态友好的。因此,本研究探讨了从不可食用的巴西橡胶树油中生产生物柴油的方法。该工艺采用两步酸碱酯交换催化。研究了反应温度、反应时间等参数。在NaOH质量分数为1.0 wt %,甲醇:油摩尔比为6:1,反应时间为75 min的条件下,生物柴油的收率为50.2%。甘油三酯转化为甲酯遵循伪一级机理。测定了反应速率常数和活化能。测定了巴西螺和生物柴油的理化特性,并与标准值进行了比较。
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引用次数: 0
Indian Waste Frying Oils: Influence of Fatty Acid Composition on their Physico-Chemical Properties 印度废煎炸油:脂肪酸组成对其理化性质的影响
Pub Date : 1900-01-01 DOI: 10.5958/0976-4763.2014.00011.7
J. Pandian, B. Prabu, M. Pugazhvadivu
In this work, 22 samples of waste frying oils are collected from different Indian facilities and their fatty acid profiles are examined. The samples are then characterised for their properties such as viscosity, density, higher heating value, cetane number, cloud point and iodine value. The results are compared with Turkish waste frying oil samples given in the literature. The relationship between physico-chemical properties and degree of unsaturation/total saturation are verified. From the results it is found that the Indian waste frying oils are more saturated compared to Turkish sources. Four investigations were conducted, which include examination of fatty acid composition and properties of Indian waste frying oils, studying the influence of fatty acid composition on physico-chemical properties, comparison of composition and properties of Indian and Turkish waste frying oils. It is concluded that the Indian waste frying oils are found to be more saturated than Turkish sources.
在这项工作中,从不同的印度设施收集了22个废煎炸油样品,并对其脂肪酸谱进行了检查。然后对样品的特性进行表征,如粘度、密度、较高的热值、十六烷值、浊点和碘值。结果与文献中给出的土耳其废煎炸油样品进行了比较。验证了物理化学性质与不饱和度/全饱和度之间的关系。从结果中发现,与土耳其源相比,印度废煎炸油的饱和程度更高。进行了四项调查,包括检查印度废煎炸油的脂肪酸组成和性质,研究脂肪酸组成对理化性质的影响,比较印度和土耳其废煎炸油的组成和性质。结论是,发现印度废煎炸油比土耳其源更饱和。
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引用次数: 1
Use of Mango Seed Bio-Diesel as a Diesel Fuel Extender for a 4- Stroke CI Engine 芒果种子生物柴油用作4冲程CI发动机的柴油燃料扩展剂
Pub Date : 1900-01-01 DOI: 10.5958/0976-4763.2020.00007.0
P. A. K. Reddy
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引用次数: 0
Second-Generation Biofuels and Climate Change: an Indian Perspective 第二代生物燃料与气候变化:印度视角
Pub Date : 1900-01-01 DOI: 10.5958/0976-4763.2018.00006.5
Akram A. Khan, Talha Akbar Kamal, Furqan Khan
In India, the demand for energy to meet the growing pace of economic development and to improve human welfare and health is increasing at a very fast rate. To meet this increasing demand for energy, fossil fuels (coal, oil and gas) are the predominant sources. In 2014, fossil fuels account for around 92% of the total fuel consumption. The contribution of fossil fuels at this level in the total energy consumption of a country results in the rapid growth in carbon dioxide (CO2) emission. Carbon dioxide (CO2) is the major contributor of the greenhouse gas (GHG) emissions. According to the Intergovernmental Panel on Climate Change (IPCC), anthropogenic greenhouse gas emissions are likely to be the main reason for the increasing global average temperature since the mid-20th century. This shows that the extensive use of fossil fuel to meet the increasing demand of energy is the prime factor for the problem of climate change. For climate change mitigation without affecting the energy consumption, the use of second-generation biofuels is among the best alternatives, as they are considered as carbon neutral or even carbon negative. This characteristic of second-generation biofuels makes them the most favourite alternative of the fossil fuel. This paper provides an overview of the impacts of climate change caused due to the extensive use of fossil fuel along with capability of second-generation biofuels to mitigate the climate change without affecting the energy supply.
在印度,为满足日益增长的经济发展步伐和改善人类福利和健康而对能源的需求正在以非常快的速度增长。为了满足日益增长的能源需求,化石燃料(煤、石油和天然气)是主要来源。2014年,化石燃料约占燃料消费总量的92%。化石燃料在一个国家能源消费总量中所占的比例达到这一水平,导致二氧化碳排放量迅速增长。二氧化碳(CO2)是温室气体(GHG)排放的主要来源。据政府间气候变化专门委员会(IPCC)称,自20世纪中期以来,人为温室气体排放可能是全球平均气温上升的主要原因。这表明,为了满足日益增长的能源需求而大量使用化石燃料是造成气候变化问题的主要因素。为了在不影响能源消耗的情况下缓解气候变化,使用第二代生物燃料是最好的替代品之一,因为它们被认为是碳中和甚至是负碳的。第二代生物燃料的这一特性使其成为化石燃料最受欢迎的替代品。本文概述了由于化石燃料的广泛使用以及第二代生物燃料在不影响能源供应的情况下缓解气候变化的能力而引起的气候变化的影响。
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引用次数: 1
Production of Diesel Engine Fuel using Municipal Solid Waste 利用都市固体废物生产柴油机燃料
Pub Date : 1900-01-01 DOI: 10.5958/0976-4763.2021.00005.2
M. M. Ahmed, H. S. Pali, Mohammed M. Khan
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引用次数: 0
A Review of Third-Generation Biofuels from Microalgae 第三代微藻生物燃料研究进展
Pub Date : 1900-01-01 DOI: 10.5958/0976-4763.2016.00003.9
Prateek Upreti, S. Ambwani
Biofuel refers to the production of fuel from organic matter, these fuel have ability to replace conventional fossil fuels and also emit less pollution; hence, they are considered eco-friendly. The term ‘third-generation biofuel’ has only recently entered the mainstream; it refers to biofuel derived from algae. Microalgae can be converted into bioenergy such as biogas, biodiesel and bio oil. Microalgae have broad bioenergy potential as they can be used to produce liquid transportation and heating fuels, such as biodiesel and bioethanol. Despite these considerable advantages, microalgal biofuels are not yet commercially sustainable. Major challenges lie in improving both cultivation technologies and microalgal strains. In this review, we focus on understanding characteristics of microalgae and harnessing the third-generation biofuels from microalgae. We review the biomass production from microalgae along with process and importance of biodiesel and bioethnol production. We also take a look at current global trends in the production of biofuels along with its advantages and limitations. We conclude with the future prospects in the production of biofuels throughout the world.
生物燃料是指从有机物质中生产燃料,这些燃料具有替代传统化石燃料的能力,而且污染排放更少;因此,它们被认为是环保的。“第三代生物燃料”一词最近才进入主流;它指的是从藻类中提取的生物燃料。微藻可以转化为沼气、生物柴油和生物油等生物能源。微藻具有广泛的生物能源潜力,可用于生产液体运输和加热燃料,如生物柴油和生物乙醇。尽管有这些可观的优势,微藻生物燃料在商业上还不具有可持续性。主要的挑战在于改进培养技术和微藻菌株。本文就微藻的特性及其第三代生物燃料的研究进展作一综述。综述了微藻生物质生产的研究进展,以及微藻生产生物柴油和生物乙醇的过程和重要性。我们还将探讨当前生物燃料生产的全球趋势及其优势和局限性。最后,我们展望了全球生物燃料生产的未来前景。
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引用次数: 0
Evaluation of a Minimal Energy-Dependent Technique for Preparation of Ailanthus excelsa Hemicellulose Acid Hydrolysate Fermentable by Schefferomyces stipitis 最小能量依赖技术制备花梗半纤维素酸水解物的研究
Pub Date : 1900-01-01 DOI: 10.5958/J.0976-4763.3.2.011
P. Jain, R. Singh, S. Sahay
A low-energy-dependent sustainable technique for the preparation of hemicellulose hydrolysate from the wood chip of low input and less care-demanding tree, Ailanthus excelsa Roxb., involving two-stage dilute acid hydrolysis technique followed by fermentation by pentose (PS)-fermenting yeast, Schefferomyces stipitis (NCIM 3507), was standardised. The main parameters optimised were acid concentration and heating period. The maximum sugar yield was obtained by hydrolysis with 10% (v/v) sulphuric acid applying pressure at 120°C for 4 min. The hydrolysate thus obtained and treated (treated hemicellulose acid pre-hydrolysate (THAP) with lime and sodium sulphite, however, could not be fermented with S. stipitis, indicating the presence of inhibitors in intolerable concentration. Though it contained lesser sugars, the hydrolysate obtained with 1% acid and treated as above (THAP) could be easily fermented by yeast. Ethanol yield as a result of fermentation of hydrolysate medium containing 40, 50 and 70% of THAP was 8.47, 6.28 and 5.09 g/l, respectively, after 120 h. This paper highlights the use of woody material, A. excelsa, a fast-growing tree adapted for marginal land, as a source of hemicellulose acid hydrolysate fermentable by S. stipitis by applying modified two-stage dilute acid hydrolysis technique with minimal energy input.
研究了以低投入、低养护要求的臭椿木屑为原料制备半纤维素水解产物的低能量依赖可持续技术。采用两阶段稀酸水解技术,然后用戊糖(PS)发酵酵母进行发酵,Schefferomyces stipitis (NCIM 3507)被标准化。优化的主要参数为酸浓度和加热周期。用10% (v/v)硫酸在120°C压力下水解4分钟获得最大的糖产量。然而,用石灰和亚硫酸钠处理的水解产物(半纤维素酸预水解物(THAP))不能与stipitis发酵,这表明存在难以忍受浓度的抑制剂。虽然它含有较少的糖,但用1%的酸得到的水解液经上述处理(THAP)可以很容易地被酵母发酵。在含有40%、50%和70% THAP的水解培养基发酵120 h后,乙醇产量分别为8.47、6.28和5.09 g/l。本文重点介绍了利用适应边缘土地的速生树木a . excelsa木质材料作为半纤维素酸水解物的来源,采用改进的两阶段稀酸水解技术,以最小的能量输入,由stipitis发酵。
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引用次数: 3
Performance and Emissions of Biodiesel Blends in an Automotive Diesel Engine 混合生物柴油在汽车柴油发动机中的性能和排放
Pub Date : 1900-01-01 DOI: 10.5958/J.0976-3015.1.1.013
Wittison Kamei, I. Singh, M. Sharma, Kalyan Singh, S. K. Singal
Biodiesel has advantages over conventional diesel fuel in terms of lesser pollutant and greenhouse gas emissions. It has the capability to partially replace diesel fuel and thereby reduces the dependence on dwindling crude oil resources. Biodiesel can be used in diesel engines with little or no modification. It is renewable and can be produced from non-edible oil seeds such as jatropha carcus and pongamia pinnata, which can be grown on wasteland. In this paper, results of a study on performance and mass emissions of an automotive diesel engine using jatropha curcus derived ethyl ester (JEE) blends are reported. The physico-chemical properties of the biodiesel, teseted as per ASTM methods, were within the standard limits. The mass emissions of NOx showed 4–9% increase with 10–20% JEE blends. PM emission for JEE-20 was almost same as that of diesel. There was no significant change in brake horse power (bhp) of both blends when compared to that of diesel.
与传统柴油相比,生物柴油在污染物和温室气体排放方面具有优势。它有能力部分替代柴油燃料,从而减少对日益减少的原油资源的依赖。生物柴油可用于柴油发动机,很少或不修改。它是可再生的,可以从非食用的油籽中生产,如麻疯树和绒豆,这些油籽可以在荒地上生长。本文报道了一种使用麻疯树衍生乙酯(JEE)混合物的汽车柴油发动机的性能和大量排放的研究结果。生物柴油的物理化学性质,按照ASTM方法测试,在标准范围内。添加10-20%的JEE时,NOx的质量排放量增加了4-9%。JEE-20的PM排放与柴油几乎相同。与柴油相比,两种混合动力的制动马力(bhp)没有显著变化。
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引用次数: 5
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Journal of Biofuels
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