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Characterisation and Effect of Using Waste Polyethylene Oil and Diesel Fuel Blends in Compression Ignition Engine 废聚乙烯油与柴油混合燃料在压缩点火发动机中的特性及效果
Pub Date : 1900-01-01 DOI: 10.5958/J.0976-4763.3.2.008
Rajan Kumar, S. Singh, Arbind Kumar, M. Mishra
The increase in petroleum price, the problems associated with long-term availability of fossil fuels for automotive engine and environmental problems are of great concern for the world. These challenges have necessitated the need to investigate alternate source of fossil fuel. The aim of the present study was to investigate the possibilities of using Waste Polyethylene Fuel (WPF) as an alternative fuel for diesel engine. WPF is derived from waste polyethylene through pyrolysis. Tests were employed to characterise the fuel properties and to evaluate the performance and emission characteristics of a single-cylinder direct-injection diesel engine fuelled by 10% and 20% blends of WPF and Diesel Fuel (DF). The physico-chemical properties of the oil were analysed and found that it has almost similar properties to that of diesel. An experimental investigation was made to evaluate the performance, emission and combustion characteristics of diesel engine using different blends of 10%, 20% and pure diesel. It seems that there is improved performance and emission with the increase concentration of WPF in WPF-DF blends. The observations made in the present research paper are the part of ongoing research work. WPF and some other oil/fuels adaptability, performance and emission are presently under investigation.
石油价格的上涨、汽车发动机化石燃料的长期供应问题以及环境问题是世界关注的焦点。这些挑战使我们有必要研究化石燃料的替代来源。本研究的目的是探讨使用废聚乙烯燃料(WPF)作为柴油发动机替代燃料的可能性。WPF是通过热解从废聚乙烯中提取的。试验用于表征燃料特性,并评估使用10%和20% WPF和柴油燃料(DF)混合燃料的单缸直喷柴油发动机的性能和排放特性。对该油的理化性质进行了分析,发现其性质与柴油基本相似。采用10%、20%和纯柴油三种不同的混合燃料,对柴油机的性能、排放和燃烧特性进行了试验研究。随着WPF- df共混物中WPF浓度的增加,其性能和排放都有所改善。本研究论文中的观察结果是正在进行的研究工作的一部分。目前正在研究WPF和其他一些油/燃料的适应性、性能和排放。
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引用次数: 1
Utilisation of Cashew Seed Oil Methyl Ester in Compression Ignition Engines and its Engine Performance 腰果籽油甲酯在压燃式发动机上的应用及其性能研究
Pub Date : 1900-01-01 DOI: 10.5958/J.0976-4763.3.2.010
F. Otu, E. Bello, S. Otoikhian, B. Diamond, L. Ekebafe
Methyl ester, also called biodiesel, is an alternative fuel for diesel engine that is produced from renewable agricultural products. Biodiesel is an alkyl ester obtained from vegetable oils, waste cooking oils or animal fats via transesterification process. The three types of fuels used for the tests are pure biodiesel (BIOO), blended biodiesel (B20), which is a 20% mixture of biodiesel with 80% diesel fuel, and pure diesel fuel (100%) derived from crude petroleum. The characterised fuels were utilised in a compression ignition engine to determine their torque, power brake mean effective pressure and specific fuel consumption characteristics. From the test results obtained, the cashew seed oil methyl ester can be used in diesel engines as a substitute fuel. The results of this study were quite encouraging.
甲酯又称生物柴油,是从可再生农产品中提取的柴油发动机替代燃料。生物柴油是从植物油、废食用油或动物脂肪中经酯交换反应制得的烷基酯。用于测试的三种燃料是纯生物柴油(BIOO),混合生物柴油(B20),这是20%的生物柴油与80%的柴油燃料的混合物,以及从原油中提取的纯柴油燃料(100%)。在压缩点火发动机中使用了表征燃料,以确定其扭矩,动力制动平均有效压力和比油耗特性。从试验结果来看,腰果籽油甲酯可作为柴油机的替代燃料。这项研究的结果相当令人鼓舞。
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引用次数: 1
Production and Physico-Chemical Characterisation of Kusum Oil Methyl Ester as an Alternative Fuel in Diesel Engine 作为柴油机替代燃料的Kusum油甲酯的制备及理化特性研究
Pub Date : 1900-01-01 DOI: 10.5958/J.0976-4763.4.1.005
H. S. Pali, C. Mishra, Naveen Kumar
The growing awareness regarding long-term availability of mineral diesel and its environmental consequences, the fluctuating nature of international crude oil prices, the vulnerability of energy security towards oil-based geopolitics, etc., have mandated the search for alternative fuel sources for diesel engines. In this context, biodiesel derived from a variety of feedstocks, like vegetable oils and animal fat, by transesterification has been considered as a promising solution to the crippling energy- and environment-related crises slowly engulfing India. Most of the vegetable oils used for biodiesel production in the developed countries are edible in nature. However, in India, edible oil-based biodiesel is a distant dream due to the lack of self-sufficiency of the country in edible oil production. Therefore, nonedible vegetable oil-producing plants growing in barren lands are a good source of biodiesel in the Indian scenario. Hence, there is an urgent need to explore the potential non-edible oil sources for biodiesel production that can supplement the Government of India's biofuel policy and may help to realise the vision of 20% biodiesel blending by 2017. The present research work deals with the production of biodiesel and a comprehensive physico-chemical characterisation of a relatively underutilised non-edible vegetable oil species known as Kusum oil (Schleichera oleosa), which has a near omnipresence throughout the subcontinent with special penetration in the remote and tribal locations. In the present study, kusum oil methyl ester (KOME) was produced using a two-stage esterification cum transesterification process on account of the high free fatty acid (FFA) contents of the oil. In the esterification stage, 0.85% by mass of catalyst (p-Toluenesulfonic acid), at 60°C temperature with constant agitation at 450 rpm led to less than 2% FFA in 45 min. Similarly, the transesterification stage led to 97.2% ester yield using 1.4% by mass of catalyst (potassium hydroxide), at 65°C temperature in 100 min under constant agitation at 450 rpm. Various physico-chemical properties of KOME, like density, viscosity, heating value, etc., were measured and found to be satisfactorily compliant with the corresponding ASTM/EN standards. The fatty acid profile suggested that KOME possessed 40% unsaturated fatty acids and around 53% saturated fatty acids. The results of oxidation stability indicated no substantial peroxide formations for 6 h in the biodiesel rancimat, thus conforming to the EN standard. The cold flow plugging point of KOME was -1°C, as compared with -9°C indicated by the neat diesel. In the light of the above study, it may be concluded that kusum oil is a promising feedstock for biodiesel production and efforts need to be made to exploit the same for commercial-scale usage.
由于人们日益认识到矿物柴油的长期供应及其环境后果、国际原油价格的波动性质、能源安全易受以石油为基础的地缘政治的影响等问题,因此必须寻找柴油发动机的替代燃料来源。在这种情况下,通过酯交换从植物油和动物脂肪等多种原料中提取的生物柴油被认为是解决逐渐吞噬印度的严重能源和环境危机的一种有希望的解决方案。在发达国家,用于生产生物柴油的大多数植物油本质上是可食用的。然而,在印度,由于该国在食用油生产方面缺乏自给自足,以食用油为基础的生物柴油是一个遥远的梦想。因此,在印度的情况下,生长在贫瘠土地上的非食用植物油生产植物是生物柴油的良好来源。因此,迫切需要探索生物柴油生产的潜在非食用油来源,这可以补充印度政府的生物燃料政策,并可能有助于实现到2017年20%生物柴油混合的愿景。目前的研究工作涉及生物柴油的生产和一种被称为Kusum油(Schleichera oleosa)的相对未充分利用的非食用植物油的全面物理化学特征,这种油在整个次大陆几乎无处不在,在偏远和部落地区特别渗透。利用豆油中游离脂肪酸(FFA)含量高的特点,采用两段酯化和酯交换法制备了豆油甲酯(KOME)。在酯化阶段,0.85%催化剂质量(对甲苯磺酸),在60℃温度下,450 rpm恒定搅拌,45 min内得到的FFA低于2%。同样,在65℃温度下,在450 rpm恒定搅拌,100 min内,使用1.4%催化剂质量(氢氧化钾)进行酯交换,酯收率为97.2%。测量了KOME的各种理化性能,如密度、粘度、热值等,均符合相应的ASTM/EN标准。脂肪酸谱表明,KOME含有40%的不饱和脂肪酸和约53%的饱和脂肪酸。氧化稳定性结果表明,在生物柴油的熏蒸环境中,6 h内没有大量的过氧化物形成,符合EN标准。纯柴油的冷流堵塞点为-9℃,而KOME的冷流堵塞点为-1℃。根据上述研究,可以得出结论,豆油是一种很有前途的生物柴油生产原料,需要努力开发用于商业规模的使用。
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引用次数: 5
Economic Analysis of Biomass Briquettes Production in India 印度生物质型煤生产的经济分析
Pub Date : 1900-01-01 DOI: 10.5958/0976-4763.2019.00009.6
P. Jagtap, V. B. Derle
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引用次数: 0
Kinetics Studies on the Catalytic Thermal Degradation of High Density Polyehylene 高密度聚乙烯催化热降解动力学研究
Pub Date : 1900-01-01 DOI: 10.5958/J.0976-4763.4.2.008
Vandana, P. Chaudhary, Ramesh C. Sharma
Thermogravimetric analysis of high density polyethylene and Co3+ catalyst mixtures was studied under non-isothermal conditions. The mixtures used in this study consist of blends of HDPE: Co3+ in 3:1 and 5:1 ratios. The pyrolysis was carried out over a temperature range of 30 to 800°C in an inert atmosphere of nitrogen, with a heating rate of 10°C/min. The kinetic parameters were evaluated using the Coats and Redfern method. The activation energy of raw HDPE was decreased by Co3+ catalyst by nearly 80% within the given temperature ranges. A reduction in the activation energy of the blended mixture was observed, which clearly indicates the synergism in the co-cracking/co-processing reactions. The reaction is defined as zero order reaction. The catalyst chosen for pyrolysis shows effective aspects on HDPE degradation.
在非等温条件下研究了高密度聚乙烯和Co3+催化剂混合物的热重分析。本研究中使用的混合物由HDPE: Co3+以3:1和5:1的比例混合而成。热解在氮气惰性气氛中进行,温度范围为30 ~ 800℃,升温速率为10℃/min。采用Coats和Redfern法对其动力学参数进行了评价。在给定的温度范围内,Co3+催化剂使原料HDPE的活化能降低了近80%。结果表明,共裂化/共加工反应中存在增效作用。该反应被定义为零级反应。所选择的热解催化剂对HDPE的降解有一定的效果。
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引用次数: 0
Role of Algal Consortium for Treatment of Primary Effluent: An Approach towards Nutrient Removal and Biomass Production 藻群在污水处理中的作用:一种去除营养物和生产生物质的方法
Pub Date : 1900-01-01 DOI: 10.5958/0976-4763.2017.00011.3
J. Sharma, Pankaj Sharma, M. Toor, Saloni Gupta, N. Bishnoi
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引用次数: 2
Performance Evaluation of a Medium Capacity Diesel Engine on Thumba Biodiesel and Diesel Blends 中型柴油机在Thumba生物柴油和混合柴油上的性能评价
Pub Date : 1900-01-01 DOI: 10.5958/J.0976-3015.1.2.023
A. Karnwal, Naveen Kumar, M. M. Hasan, A. N. Siddiquee, Z. Khan
The world has witnessed industrial revolution in the past two centuries and faced serious problem of indiscriminate utilization of the energy resources. This has resulted in severe environmental degradation and very high dependence on fossil fuels. Researchers all over the world are experimenting on variety of renewable fuels for meeting future energy demands and biodiesel is fast becoming a potential alternative fuel for use in agriculture and transport sector. There are many varieties of feedstock which are used for biodiesel production worldwide; however, there is an urgent need to explore the potential of biodiesel from variety of locally available sources. Thumba is one such species found in Rajasthan State of India and this paper highlights the results of investigations carried out on assessing potential of biodiesel derived from Thumba oil and its blends with mineral diesel (B10, B20, B40, B60, B80, B100) in a medium capacity, single cylinder, direct injection, water-cooled diesel engine. The performance test was carried out at different loads and brake specific fuel consumption (BSFC) and brake thermal efficiency (BTE) were evaluated. The exhaust gas temperature and exhaust emissions (CO, CO , HC, NO x , and Smoke Opacity) were also recorded. The highest BTE was achieved in case of B10. As the concentration of biodiesel was increased in biodiesel-diesel blends, a reduction in BTE was observed. The exhaust gas temperature was found minimum in case of B10 and maximum for B100. The CO, HC and Smoke opacity were found lower for biodiesel based fuels than neat diesel. The CO 2 and NO x emissions were found higher in case of biodiesel based fuels. The results suggest that Thumba biodiesel can be used as an extender to diesel fuel, which would results in better performance and improved emission characteristics.
在过去的两个世纪里,世界经历了工业革命,也面临着能源滥用的严重问题。这导致了严重的环境退化和对化石燃料的高度依赖。世界各地的研究人员正在试验各种可再生燃料,以满足未来的能源需求,生物柴油正迅速成为一种潜在的替代燃料,用于农业和运输部门。世界范围内用于生物柴油生产的原料品种很多;然而,迫切需要从当地可获得的各种资源中探索生物柴油的潜力。Thumba是在印度拉贾斯坦邦发现的一种这样的物种,本文重点介绍了在中等容量、单缸、直接喷射、水冷柴油发动机中评估从Thumba油及其与矿物柴油(B10、B20、B40、B60、B80、B100)的混合物中提取生物柴油的潜力的调查结果。在不同负载下进行了性能测试,并对制动比油耗(BSFC)和制动热效率(BTE)进行了评估。废气温度和废气排放量(CO、CO、HC、nox和烟浊度)也被记录下来。B10达到了最高的BTE。随着生物柴油-柴油混合物中生物柴油浓度的增加,观察到BTE的降低。B10的废气温度最低,B100的废气温度最高。与纯柴油相比,生物柴油基燃料的CO、HC和烟雾透明度较低。以生物柴油为基础的燃料,二氧化碳和一氧化氮的排放量更高。结果表明,Thumba生物柴油可以作为柴油燃料的扩展剂,从而获得更好的性能和改善的排放特性。
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引用次数: 5
Performance Evaluation of CI Engine on Fuel Blends of Neem Oil Biodiesel and Diesel 印度楝油、生物柴油和柴油混合燃料对CI发动机性能的影响
Pub Date : 1900-01-01 DOI: 10.5958/0976-4763.2017.00013.7
P. K. Vishnoi, V. Gupta, V. S. Bisht, A. Patil
In the present study, biodiesel is produced from neem oil by two-step esterification process. The neem oil ethyl ester (NOEE)–diesel blends are prepared by blending 10 to 100% NOEE with diesel. The blends containing 10 to 100% ester have their kinematic viscosity, cloud and pour point and flash and fire point compatible with diesel. The performance test of 4.4-kW diesel engine on fuel blends of neem oil biodiesel and diesel has carried out in terms of brake power, fuel consumption, brake-specific fuel consumption (BSFC) and brake thermal efficiency. Brake power of all the blends was found comparable with diesel, whereas fuel consumption, BSFC and brake thermal efficiency of 100% NOEE were found higher than the diesel. NOEE20 as fuel the brake thermal efficiency is found to be highest, and BSFC was found to be lowest on this blend. NOEE100 could be used as fuel with some modification in engine. Performance of NOEE20 is better than other blend so it could be used as future fuel.
本研究以印楝油为原料,采用两步酯化工艺制备生物柴油。通过将10%至100%的印度楝油乙酯(NOEE)与柴油混合制备印度楝油乙酯-柴油共混物。含10% ~ 100%酯的共混物具有与柴油相容的运动粘度、云点、倾点、闪点和燃点。4.4 kw柴油机在印楝油生物柴油和柴油混合燃料上进行了制动功率、油耗、制动比油耗(BSFC)和制动热效率的性能试验。所有混合燃料的制动功率与柴油相当,而燃油消耗、BSFC和100% NOEE的制动热效率均高于柴油。NOEE20作为燃料的制动热效率最高,而BSFC在该混合物中最低。NOEE100在发动机上稍加改造即可用作燃料。NOEE20的性能优于其他混合燃料,因此可以作为未来的燃料。
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引用次数: 1
Saccharification of Water Hyacinth Biomass for Bioethanol Production: Optimization of Sulfuric Acid Pretreatment 水葫芦生物质糖化生产生物乙醇:硫酸预处理的优化
Pub Date : 1900-01-01 DOI: 10.5958/0976-4763.2020.00001.x
A. Chauhan, V. Singh, Y. Kwatra
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引用次数: 0
Biosurfactants Enhanced Methane Production from Organic Solid Waste using Co-culture of Methanosarcina mazei and Pseudomonas aeruginosa 生物表面活性剂促进马氏甲烷菌和铜绿假单胞菌共培养有机固体废物产甲烷
Pub Date : 1900-01-01 DOI: 10.5958/0976-4763.2020.00002.1
Apourv Pant, J. Rai
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引用次数: 0
期刊
Journal of Biofuels
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