Term Paper On "Bio-Diesel-A Greenish Future Ahead" (original) (raw)
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Biodiesel Production as a Renewable Resource for the Potential Displacement of the Petroleum Diesel
2020
In the quest to comply with the Intergovernmental Panel on Climate Change (IPCC) on reducing the global temperature to 1.5–2.0°C as a measure to minimize the climate change caused by the emission of greenhouse gases from the combustion of fossil fuels, and the need for replacement of these fossil fuels, which are also generally believed to be depleting, biodiesel is being studied as a potential replacement for the conventional petroleum diesel. This fuel among other desired properties is renewable, biodegradable, sustainable, and emits less particles. It also contains no amount of sulfur, in addition to possessing most of the good characteristics of petroleum diesel. At the moment, more than 95% of biodiesel produced globally is obtained from vegetable oil feedstocks, which are usually very expensive and thus, without tax waiver and subsidy, makes biodiesel non-competitive with the petroleum diesel. Based on this, non-edible feedstocks are being investigated. Although, their oil yie...
Bio-diesel as an Alternative Fuel (Description, Benefits and Production Process
The world energy sources are depleting day by day due to declining fossil fuel reserves, global climate changes and government regulation regarding Green House Gases. More over the use of fossil fuel is not enough to meet the increasing energy requirements of the growing population of the world so the alternate and renewable fuel sources available nowadays are becoming more and more important. Although there are a number of different fuel sources available but Bio-Diesel is the most feasible for countries like Pakistan, as it is an agricultural country and possesses suitable climatic and Geographical conditions. The objective of this study is to understand the construction of the bio-diesel plant and all the mechanical challenges involved in it to make it efficient and commercial, also to understand the chemical processes involved in it. The control, operation and working of the plant are also given priority in the objective. The cost of the Bio-Diesel is the issue related to it commercialization, Adoption of continuous transesterification process and recovery of high quality glycerol (by product) are the primary parameters to be considered to lower the cost of Bio-Diesel. The produced Bio-Diesel is also analyzed after the production, to make sure that the Bio-Diesel produced is of the required quality or not. This study consists of all of these processes involved in bio-diesel production along with the benefits that comes with its use, now and in the near future.
Biodiesel as an Alternative Fuel for Diesel Engine–An Overview
Growing concern regarding energy resources and the environment has increased interest in the study of alternative sources of energy. To meet increasing energy requirements, there has been growing interest in alternative fuels like biodiesel to provide a suitable diesel oil substitute for internal combustion engines. Biodiesels offer a very promising alternative to diesel oil since they are renewable and have similar properties. Biodiesel is defined as a trans esterified renewable fuel derived from vegetable oils or animal fats with properties similar or better than diesel fuel. Extensive research and demonstration projects have shown it can be used pure or in blends with conventional diesel fuel in unmodified diesel engines. This paper reviews the history of biodiesel development and production practices. Fuel-related properties are reviewed and compared with those of conventional diesel fuel. The effect of use of biodiesel fuel on engine power, fuel consumption and thermal efficiency are collected and analyzed with that of conventional diesel fuel. In the subsequent section, the engine emissions from biodiesel and diesel fuels are compared, paying special attention to the most significant emissions such as nitric oxides and particulate matter.
Biodiesel: Reducing Environment Pollutant and Dependency on Petroleum Diesel
2017
As India, the sixth largest producer of greenhouse gases (GHG), contributing almost 3% of the world’s total emissions and fifth largest energy consumer country in the world. India imports 70% of crude oil and experts anticipate that over 94% of its crude oil will be purchased from foreign country by 2030. Economically, biodiesel reduced country’s reliance on crude oil imports, foreign exchange saving. Transesterification process is mainly used to decrease the viscosity of edible, non-edible oil and waste oil, however other properties of the oil remain same and this new fuel has been called biodiesel. Biodiesel can be used in any diesel engine without any modification such as B5 to B50 are safe for operation in any compression-ignition engine. Various studies showed that pollutants like CO, CO2, SOX, HC, PAH, PM can be reduced by using blended and pure biodiesel. NOX emissions are increased by using biodiesel. Biodiesel is an environment friendly biofuel since it provide a means to r...
Renewable and Sustainable Energy Reviews, 2014
Recent days, underground carbon resources are dwindling at a faster rate. This triggered primary interest in development of bio-fuel as substitute to Petroleum-based fuel for alleviating world energy and economic crisis. This review explores the environmental impacts of bio-fuels on the road transportation and a large-scale impact of bio-fuel crops on food-based agricultural lands, which are now more gainfully used for churning out vehicle fuel. A global bio-diesel production is depicted with an appropriate data from 1991 to 2012. Also this article explains in detail the bio-diesel status (which includes crop type, climatic conditions, yield, oil concentration, land use/availability, and policy impacts) of 27 different countries across the world. In addition, this article extends to classify the potential bio-fuel feedstocks obtainable in each country.
The Status of Biodiesel as an Alternative Fuel for Diesel Engine – An Overview
Growing concern regarding energy resources and the environment has increased interest in the study of alternative sources of energy. To meet increasing energy requirements, there has been growing interest in alternative fuels like biodiesel to provide a suitable diesel oil substitute for internal combustion engines. Biodiesels offer a very promising alternative to diesel oil since they are renewable and have similar properties. Biodiesel is defined as a transesterified renewable fuel derived from vegetable oils or animal fats with properties similar or better than diesel fuel. Extensive research and demonstration projects have shown it can be used pure or in blends with conventional diesel fuel in unmodified diesel engines. This paper reviews the history of biodiesel development and production practices. Fuel-related properties are reviewed and compared with those of conventional diesel fuel. The effect of use of biodiesel fuel on engine power, fuel consumption and thermal efficiency are collected and analyzed with that of conventional diesel fuel. In the subsequent section, the engine emissions from biodiesel and diesel fuels are compared, paying special attention to the most significant emissions such as nitric oxides and particulate matter.
Comprehensive review of biodiesel as an alternative fuel for diesel engines
Diesel engine is a popular prime mover applied worldwide. It is necessary to find an alternative of diesel fuel in order to run diesel engines efficiently, as well as to reduce its prolusion to the environment. Biodiesel is such an alternative, which can be obtained from both edible and non-edible plants and crops, with some chemical processes, biodiesel properties can be modified to use as blends in diesel fuel. Selected biodiesel blends boost brake specific fuel consumption and decrease brake thermal efficiency in comparison to diesel. In most cases, the biodiesel has better results in carbon monoxide and hydro carbon emissions, although high cylinder temperatures also boost nitrogen oxides emissions. This analysis comes to the realisation that these modified biodiesels with better quality can be pumped in a specific proportion into a diesel engine without modifying the engine components. Therefore, the biodiesel is renewable, biodegradable, and non-toxic.
Production of Bio-Diesel Used in Diesel Engines
Innovare Journal of Engineering Technology, 2013
To obtain biodiesel, the vegetable oil is subjected to a chemical reaction termed transesterification. Cottonseed oil (CSO) was selected for biodiesel production. In that reaction, the Cottonseed oil is reacted in the presence of a catalyst (sodium hydroxide) with an alcohol (methanol) to give the corresponding methyl esters. Cottonseed is non-edible oil, thus food against fuel conflict will not arise if this is used for biodiesel production. The experiments were conducted in order to evaluate the effects of reaction variable such as methanol/oil molar ratio (1:3.3), catalyst concentration (0.25%), temperature (65 0 C), reaction time 3.0 hours and stirring intensity (300rpm). The methyl ester yield is (84.3%). The methyl esters of cotton seed oil can be used in existing diesel engines without any modifications.
IJERT-Study of Different Types of Bio-Fuels as Fuel in Diesel Engines : A Review
International Journal of Engineering Research and Technology (IJERT), 2014
https://www.ijert.org/study-of-different-types-of-bio-fuels-as-fuel-in-diesel-engines-a-review https://www.ijert.org/research/study-of-different-types-of-bio-fuels-as-fuel-in-diesel-engines-a-review-IJERTV3IS10447.pdf This paper gives a critical review and recent development done on the biodiesel made from different types of edible and non edible oil derived from various renewable plant seed oils and animal fats, which shows the improved engine performance and reduced exhaust emission. It"s also highlighting the global trend in bio-fuel demand and supply, its economic viability, environmental issues and also about the next generation eco friendly bio-fuel which may also help to overcome the issues related to dependence and depletion of conventional fossil reservoirs. Paper gives a summary of research on the Biodiesel derived from various renewable plant seed oils and animal fats is a promising alternative to fossil diesel fuel.