
Viraj MiyurangaOklahoma State University | Oklahoma State · Department of Chemistry
Viraj Miyuranga
PhD (reading), M.Phil. (USJ, Sri Lanka), B.Sc. (UoK, Sri Lanka)
Ph.D student at Oklahoma State University Stillwater (USA) 🇺🇲
About
41
Publications
36,737
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159
Citations
Introduction
Viraj Miyuranga is a dedicated PhD candidate at Oklahoma State University, with an M.Phil. from the University of Sri Jayewardenepura and a B.Sc. from the University of Kelaniya, both in Sri Lanka. His research spans Photochemistry, Photocatalyst, and Biofuels. Viraj's dedication to sustainable energy, green catalysis, and organic process development researchs that demonstrate his potential for significant contributions in science, especially in energy, chemistry, and the environment.
Additional affiliations
February 2021 - May 2023
Education
August 2024 - August 2028
April 2021 - April 2023
January 2016 - February 2019
Publications
Publications (41)
Photoredox catalysis has become an invaluable tool for the construction of organic molecules, allowing for unparalleled control over radical intermediates enabled by the mild conditions achieved through visible-light activation of a photocatalyst. These reactions can be classified under two distinct mechanistic paradigms: closed photocatalytic cycl...
Photoredox catalysis has become an invaluable tool for the construction of organic molecules, allowing for unparalleled control over radical intermediates enabled by the mild conditions achieved through visible-light activation of a photocatalyst. These reactions can be classified under two distinct mechanistic paradigms: closed photocatalytic cycl...
Due to their reusability, heterogeneous catalysts for biodiesel production have gained popularity. If the commercial-grade heterogeneous catalyst could be replaced with CaO generated from eggshells (which is a waste product) and seashells (which is abundantly available in Sri Lanka) would be beneficial for the sustainability of the process and circ...
https://epaper.sundayobserver.lk/Home/ShareImage?Pictureid=5e8a2b56
Sunday Observer (12/03/2023)
Free fatty acid content of the oil: Biofuel Innovations
For the production of biodiesel from waste cooking oil with an acid value of 1.86 mg KOH/g, five heterogeneous catalysts-Ba(OH) 2 , CaO, MgO, ZnO, and AlCl 3-were employed. To optimize the reaction parameters of each catalyst, the influence of crucial process variables, such as catalyst loading, methanol-to-oil ratio, and reaction duration, was inv...
Consumption of fossil fuels has resulted in several economic and environmental consequences, prompting a quest for renewable energy sources rather than a reliance on fossil fuels. Biodiesel is a renewable source of energy that can be substituted for fossil fuel-based diesel fuel. Transesterification is the most economically viable way of producing...
The primary motivation for researching biofuels is to meet the world's energy requirements. Demand for fossil fuels is rising significantly due to population expansion. Biodiesel is a promising renewable energy source that, if implemented effectively, has the potential to reduce the dependency on fossil fuels. Because biodiesel is a cleaner fuel th...
The current study investigates the possibility of substituting bioethanol for short-chain alcohols in the production of biodiesel via a fermentation process using waste bananas. For one week, waste bananas from a local market were fermented with S.cerevisiae (Baker's yeast) to generate ethanol that contained 8% bioethanol. A triple distillation pro...
Biodiesel is an excellent substitute for fossil diesel, which received a significant attention in recent decades. Catalyst methods are frequently used to produce biodiesel at low temperatures and pressures. The present work investigates the methanolysis of waste cooking oil with the acid value of 1.86 mg KOH/g employing a variety of homogeneous bas...
The crude glycerol produced as a byproduct of transesterification synthesis has very few applications because it comprises of significant amounts of methanol, catalyst, and soap. On the other hand, transesterifications of highly acidic oil in the presence of an alkaline catalyst are problematic due to the presence of high amounts of free fatty acid...
This study included the production of biomass briquettes from discarded cotton flock, an industrial byproduct. To boost densification, cotton flock was mixed with palm oil sludge at a ratio of 1:1. The quality factors include the shatter index, calorific value, water boiling test, flash point, and density of the final briquette was examined. Test r...
The aim of this study was to examine the production of biodiesel from waste cooking oil with an acid value of 1.82 mg KOH/g in the presence of methanol and KOH, utilizing cosolvent technology in order to increase biodiesel output by overcoming mass transfer resistance. This study examined the effect of four cosolvents (hexane, diethyl ether, toluen...
Energy production relies on finite fossil fuels and is usually regarded as the primary source of hazardous emissions and global warming.
As a result, much attention has been dedicated to biofuel as a fuel for engine alternatives. Biofuel is now primarily utilized in blends with fossil diesel. As a result, this study was focused on adding bioethanol...
Biodiesel is a renewable fuel with similar chemical and physical properties to diesel. The study used waste cooking oil to make biodiesel
because reusing waste cooking oil harms human health by raising FFA levels above the norm. Transesterification was performed at 60 °C using a 1:5 methanol to waste cooking oil volume ratio, 30 min reaction time,...
Transportation of products and people account for around 80% of global energy use, implying a high reliance on fossil fuels in our daily life. CO2 is a greenhouse gas produced by the combustion of fossil fuels, which contributes to global warming and deforestation. As a result, the quest for sustainable, renewable alternative fuels such as biodiese...
Biofuels are becoming more widely recognized as a solution to the energy crisis and reducing dependency on fossil fuels. The cost of raw materials for biodiesel manufacturing is a significant challenge. To improve yield while lowering costs, the process must be optimized. As a result, mixing properties such as stirrer design, blade diameter, and st...
The world needs to increase renewable and alternative fuel sources such as Biomass, Bioethanol, and Biodiesel to compete with fossil fuels. Biodiesel is an important renewable fuel source since it can be used in regular diesel vehicles without requiring engine modifications. Conventional biodiesel production takes around 90 min of reaction time. A...
Sri Lankan energy policy depends on hydropower, coal power, and fossil fuel, contributing to the transportation sector. Implementing renewable energy is a time-required necessity to minimize the dependency on imported fossil fuels. Biodiesel produced by waste cooking oil seems a promising technique as it minimizes waste handling costs as well. Howe...
Renewable energies are important to replace the fossil fuel requirements as well as to maintain the environmental sustainability. Biodiesel is one of the leading renewable energy sources to replace mineral diesel. The biodiesel production from waste cooking oil supports reducing the production cost. The free fatty acids of the waste cooking oil are...
As the world population and modernization increase, energy demand increases. One of the non-sustainable energy sources is fossil fuels. However, fossil fuel consumption raises various environmental and economic issues. Most of the studies focus on sustainable energy sources, which can replace fossil fuel dependence. Biodiesel is an alternative sust...
As the world population and modernization increase, energy demand increases. One of the non-sustainable energy sources is fossil fuels.
However, fossil fuel consumption raises various environmental and economic issues. Most of the studies focus on sustainable energy
sources, which can replace fossil fuel dependence. Biodiesel is an alternative sust...
Multiple causes are responsible for marine accidents and incidents. Some of them are a collision of ships, internal technical failures, human errors, or weather effects. Most of them are just ignoring the shortage of international laws, bypassing registration, which they can remotely handle by registering the vessel in any other countries than thei...
A contemporary process from biomass is used for derived biofuel from biomass such as plant or algae material or animal waste. As such feedstock material can be replenished readily; biofuel is considered a renewable energy source. Biodiesel is the most famous biofuel as it is commonly produced and easily derived from available raw materials. It can...
The coronavirus impact has created the most significant collapse of global education in history. The closure of schools and other learning institutes has impacted the vast majority of the students, especially in low and lower-middle-income countries-the crisis exacerbates conventional education systems' disparities by reducing many opportunities fo...
Multiple causes are responsible for marine accidents and incidents. Some of them are a collision of ships, internal technical failures, human errors, or weather effects. Most of them are just ignoring the shortage of international laws, bypassing registration, which they can remotely handle by registering the vessel in any other countries than thei...
The coronavirus impact has created the most significant collapse of global education in history. The closure of schools and other learning institutes has impacted the vast majority of the students, especially in low and lower-middle-income countries-the crisis exacerbates conventional education systems' disparities by reducing many opportunities fo...
Questions
Questions (11)
Where to get the Bioresource Technology Reports Elsevier Journal word Template ?
i am looking for scopus index free journal for biofuels
Heterogeneous catalysts (CaO, MgO, ZnO) have been shown to be less effective in low methanol and oil mole ratios. So, what is the best mole ratio for a heterogeneous catalyst in transesterification?
In biodiesel production through transesterification, various of heterogeneous catalysts could be utilized. However, each heterogeneous catalysts are showed different yield. My question is What are the factors of heterogeneous catalyst that affect their activation during transesterification?
I have purified crude glycerol which is come from as a byproduct of transesterification. I need to know, the purity of the sample after purification. What methods can I apply to get the glycerol purity?