scholarly journals Biofuel From Cow Tallow: A Case Study

2016 ◽  
Vol 12 (6) ◽  
pp. 299
Author(s):  
Ribwar K Abdulrahman ◽  
Mohammed H Zangana ◽  
Jafar A Ali ◽  
Rebwar Ibrahim Aziz ◽  
Rawaz M Karem ◽  
...  

The global demand for energy in recent decade has been dramatic. Indeed, several oil and gas reservoirs around the world are depleted every day. Moreover, the fossil fuels for example, petroleum emitted huge quantities of toxic gases to the environment. Therefore, the passive environmental consequences of fossil fuels and the bother about fossil fuel supplies have encouraged the investigation for renewable biofuels. Thus, this work is objective to produce a biodiesel fuel from residual cow tallow that produced every day at Koya city slaughterhouse. The Koya slaughterhouse cow tallow may consider low cost renewable feed stock to produce biodiesel. Furthermore, the study has examined various process parameters for example, catalyst amount and alcohol amount as well on fuel production yield. The produced biodiesel is also subjected into several tests for instance, density and cetane number.

2017 ◽  
Vol 13 (3) ◽  
pp. 235
Author(s):  
Ribwar K. Abdulrahman

In recent decade, the demand for fuel as a source of energy has been dramatic. In fact, many oil and gas reservoirs are declining around the world. The use of fossil fuels such as oil, coal, and natural gas is contributing to the phenomenon of global warming. This is because it emits high quantities of carbon dioxide and other greenhouse gases to the atmosphere. Thus, many researchers and energy companies are investigating the production of an environmental friendly fuel that reduces the emission of greenhouse gases. Thus, bio fuel is one of the most obvious alternative sustainable fuels that can be produced from used vegetable oil and animal fats as well. Indeed, it has several advantages. For example, a biodegradable and a renewable energy reduces global warming phenomenon. Thus, this work is an attempt to produce a biodiesel fuel from chicken fat and waste cooking oil. Also, it was found that it is possible to produce biodiesel from chicken fat and waste cooking oils using transesterification reaction method. Furthermore, the process optimization was also adopted; for example, methanol to oil ratio. It has been found that the yield percentages of the produced biodiesel is increased by increasing the amount of methanol. In addition, the maximum conversion to ester could be achieved at methanol: oil ratio about 7:1. at 60 °C.


2021 ◽  
Vol 2 (3) ◽  
pp. 55-60
Author(s):  
Ekaterina E. Khogoeva ◽  
Evgeny A. Khogoev

This study is devoted to an analysis of microseisms registered on gas-condensate field area. Presence of seismic emission effect on a part of the area is demonstrated. A microseismic anomaly is outlined in NW part of the area and proves correct by 3 seismic CDP profiles and interpreted as a reservoir. The results of the special processing was compared to the results of a set of other geophysical methods. Correlation between the found anomaly and an anomaly found with aerogamma-specrtometry is shown. The results can be used in an integrated interpretation of geophysical data for oil and gas reservoirs of both structural as nonstructural types.


2021 ◽  
Author(s):  
Ploy Achakulwisut ◽  
Peter Erickson

At present, most global GHG emissions – over 75% – are from fossil fuels. By necessity, reaching net zero emissions therefore requires dramatic reductions in fossil fuel demand and supply. Though fossil fuels have not been explicitly addressed by the UN Framework on Climate Change, a conversation has emerged about possible “supply-side” agreements on fossil fuels and climate change. For example, a number of countries, including Denmark, France, and New Zealand, have started taking measures to phase out their oil and gas production. In the United States, President Joe Biden has put a pause on new oil and gas leasing on federal lands and waters, while Vice President Kamala Harris has previously proposed a “first-ever global negotiation of the cooperative managed decline of fossil fuel production”. This paper aims to contribute to this emerging discussion. The authors present a simple analysis on where fossil fuel extraction has happened historically, and where it will continue to occur and expand if current economic trends continue without new policy interventions. By employing some simple scenario analysis, the authors also demonstrate how the phase-out of fossil fuel production is likely to be inequitable among countries, if not actively and internationally managed.


Resources ◽  
2019 ◽  
Vol 8 (1) ◽  
pp. 38 ◽  
Author(s):  
Wen-Tien Tsai

Waste cooking oil (WCO) has been considered a low-cost and renewable feedstock for the production of biodiesel and biobased products if it can be economically and efficiently collected and recycled. The objective of this case study is to review the scientific background of WCO recycling in the literature in connection with the regulatory and promotional measures in Taiwan under the authorization of a legal waste management system. Furthermore, the updated information about the on-line reporting WCO amounts in Taiwan is also analyzed to illustrate its significant increase in the recycling status of WCO officially designated as one of the mandatory recyclable wastes since 2015. Finally, an overview of available utilization of WCO as biodiesel, fuel oil, and non-fuel related uses is briefly addressed in this paper. It shows that the collected amounts of WCO from residential and commercial sectors in Taiwan significantly increased from 1599 tonnes in 2015 to 12,591 tonnes, reflecting on the WCO recycling regulation effective since 2015. Practically, the most important option for this urban mining is to reuse WCO as an energy source for the productions of biodiesel and auxiliary fuel. Other non-fuel related uses include the production of soaps/detergents, C-18 fatty acids, and lubricants. However, the reuse of WCO as a feed additive should be banned to prevent it from re-entering the food chain.


2019 ◽  
Vol 7 (41) ◽  
pp. 23794-23802 ◽  
Author(s):  
Alexia Macina ◽  
Tayline V. de Medeiros ◽  
Rafik Naccache

Biodiesel fuel production remains one of the most promising alternatives to non-renewable fossil fuels such as conventional oil and diesel.


2011 ◽  
Vol 8 (3) ◽  
pp. 264-268 ◽  
Author(s):  
Mohammed Abdul Rasheed ◽  
Mutnuri Lakshmi ◽  
Deshoju Srinu ◽  
Anurodh Mohan Dayal

2019 ◽  
Vol 52 (6) ◽  
pp. 1072-1092 ◽  
Author(s):  
Philippe Le Billon ◽  
Berit Kristoffersen

Reducing greenhouse gas emissions has generally been approached through demand-side initiatives, yet there are increasing calls for supply-side interventions to curtail fossil fuel production. Pursuing energy transition through supply-side constraints would have major geopolitical and economic consequences. Depending on the criteria and instruments applied, supply cuts for fossil fuels could drastically reduce and reorient major financial flows and reshape the spatiality of energy production and consumption. Building on debates about just transitions and supply constraints, we provide a survey of emerging interventions targeting the supply of, rather than the demand for, fossil fuels. We articulate four theories of justice and criteria to prioritize cuts among fossil fuel producers, including with regard to carbon intensity, production costs, affordability, developmental efficiency and support for climate change action. We then examine seven major supply constraint instruments, their effectiveness and possible pathways to supply cuts in the coal, oil and gas sectors. We suggest that supply cuts both reflect and offer purposeful political spaces of interventions towards a ‘just’ transition away from fossil fuel production.


2020 ◽  
Vol 11 (1) ◽  
pp. 7712-7724

Smart water injection in oil and gas reservoirs is one of the most popular and low-cost methods to increase the recovery factor of reservoirs. However, due to the abundance of sandstone reservoirs in the world and the necessity to increase recovery in these types of reservoirs, injection of smart water will disturb the distribution of intergranular stresses in the porous media which results in sand production that causes many problems in many parts of the petroleum industry. For this reason, the necessity to investigate possible parameters affecting sand production was increased. Also, according to the relative researches, the injection of smart water changes the reservoir pH, which could change the sand production rate. In this paper, a comprehensive study on the effect of pH or alkalinity on sand production, as well as the effect and mechanism of silica nanoparticles, has been performed to control the grains separated from the rock. The effect and mechanism of silica nanoparticles with economic concerns have also been analyzed, which can significantly reduce and control the amount of sand production. In this paper, we can determine the effectiveness and the most effective parameters in an acidic or basic environment.


Author(s):  
Perumal Rajkumar ◽  
Venkat Pranesh ◽  
Ramadoss Kesavakumar

AbstractRapid combustion of fossil fuels in huge quantities resulted in the enormous release of CO2 in the atmosphere. Subsequently, leading to the greenhouse gas effect and climate change and contemporarily, quest and usage of fossil fuels has increased dramatically in recent times. The only solution to resolve the problem of CO2 emissions to the atmosphere is geological/subsurface storage of carbon dioxide or carbon capture and storage (CCS). Additionally, CO2 can be employed in the oil and gas fields for enhanced oil recovery operations and this cyclic form of the carbon dioxide injection into reservoirs for recovering oil and gas is known as CO2 Enhanced Oil and Gas Recovery (EOGR). Hence, this paper presents the CO2 retention dominance in tight oil and gas reservoirs in the Western Canadian Sedimentary Basin (WCSB) of the Alberta Province, Canada. Actually, hysteresis modeling was applied in the oil and gas reservoirs of WCSB for sequestering or trapping CO2 and EOR as well. Totally, four cases were taken for the investigation, such as WCSB Alberta tight oil and gas reservoirs with CO2 huff-n-puff and flooding processes. Actually, Canada has complex geology and therefore, implicate that it can serve as a promising candidate that is suitable and safer place for CO2 storage. Furthermore, injection pressure, time, rate (mass), number of cycles, soaking time, fracture half-length, conductivity, porosity, permeability, and initial reservoir pressure were taken as input parameters and cumulative oil production and oil recovery factor are the output parameters, this is mainly for tight oil reservoirs. In the tight gas reservoirs, only the output parameters differ from the oil reservoir, such as cumulative gas production and gas recovery factor. Reservoirs were modelled to operate for 30 years of oil and gas production and the factor year was designated as decision-making unit (DMU). CO2 retention was estimated in all four models and overall the gas retention in four cases showed a near sinusoidal behavior and the variations are sporadic. More than 80% CO2 retention in these tight formations were achieved and the major influencing factors that govern the CO2 storage in these tight reservoirs are injection pressure, time, mass, number of cycles, and soaking time. In general, the subsurface geology of the Canada is very complex consisting with many structural and stratigraphic layers and thus, it offers safe location for CO2 storage through retention mechanism and increasing the efficiency and reliability of oil and gas extraction from these complicated subsurface formations.


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