* If you want to update the article please login/register
Abstract: The present study was designed to produce catalyst loaded on low-cost clay supports and to use plum waste seed oil for biodiesel production. All biodiesel samples were found in the experimental range, according to the fuel quality parameters. The presence of oleic and linoleic acids in the plum seed oil was confirmed by a gas chromatographic mass spectrometric analysis. Nano-rods are evident on the surface of Granite-potassium ferricyanide and Kolten-potassium ferricyanide composites, as shown by a SEM photograph. The changes in surface characterization of Bentonite-potassium ferricyanide composites after calcination are another interesting finding that can be obtained from SEM photos. Compared to a Bentonite-potassium ferricyanide composite with spherical particles, Calcinized bentonite-potassium ferricyanide composite with spherical particles was found to have more nano rod like structures on its surface. The EDX results of Bentonite-potassium ferricyanide composite and Calcinized bentonite-potassium ferricyanide composite and Calcinized bentonite-potassium ferricyanide composite show that carbon and oxygen were reduced after calcination.
Source link: https://doi.org/10.21203/rs.3.rs-781515/v1
Abstract: For biodiesel production, the esterification of jatropha oil obtaining process was investigated. demonstrated by an efficient biodiesel synthesis in ionic liquids using immobilized RML. As reaction media for RML-produced biodiesel, fifteen forms of ionic liquids based on different alkyl chain lengths of the methyl imidazolium cation were [NTf 2 ], [PF 6 ], [BF 6 ] or [BF 4 ] anions were assayed. Even after the magnetic nano-biocatalyst and ionic liquid were used 5 times in a 48-hour reaction cycle, the enzyme catalytic activity remained 60%.
Source link: https://doi.org/10.21203/rs.3.rs-645352/v1
As a result, the traditional energy sources must be replaced by renewable energy sources. This paper explores the extraction of biodiesel from sunflower oil by using electric arc furnace dust as a heterogeneous solid catalyst. The effect of the various reaction variables on the biodiesel yield was determined by response surface method. All of the independent variables are present in this diagram. A graph describing the biodiesel conversion as a result of all of the dependent variables has been constructed. The reaction conditions optimization has been investigated for the biodiesel yield maximization and minimumization of reaction conditions.
Source link: https://doi.org/10.21203/rs.3.rs-285794/v1
Abstract Background: Cumulative published evidence has shown that renewable feedstocks are a viable alternative to fossil platforms for the production of fuels and chemicals, according to Cumulative. Enzymatic heterogeneous catalysis is a revolutionary platform that blends both, enzyme synthesis and selectivity of enzymes with the ordered structure, high porosity, mechanical, thermal, and chemical resistance of mesoporous materials to produce enzymatic heterogeneous catalysts. Enzymatic mineralization with an organic silicon precursor is a promising and emerging strategy for the production of solid hybrid biocatalysts with outstanding durability under varying usage conditions. Herein, we investigated the putative benefits of biosilicification techniques for producing an improved ecofriendly and stable biocatalyst for sustainable biofuel production. Ester content varied from 81 to 93 percent wt, depending on the raw material used for biodiesel synthesis.
Source link: https://doi.org/10.21203/rs.3.rs-23390/v2
Abstract Background: Renewable feedstocks are increasingly investigated these days as an alternative to fossil platform fuels and chemicals production. A new generation of catalysts with specific characteristics such as high availability and selectivity, quick recovery, and reusability is required for biomass conversion. The combination of enzymatic and heterogeneous inorganic catalysis leads to unprecedented platform that combines both physical and chemical catalysis's strengths. This work represents the one-step synthesis of a solid enzymatic catalyst, designated as Low Ordered Biosilicified Enzyme due to their chemical properties, according to the n. Pseudomonas Fluorescens lipase aggregates are embedded in the center of a silicon-covered micelle's core, providing active sites with the ability to process various raw materials to produce first and second generation biodiesel. Conclusions: As co-substrate, refined, non-edible, and residual oils can be converted into biodiesel by LOBE catalysts with commercial ethanol as co-substrate.
Source link: https://doi.org/10.21203/rs.3.rs-23390/v1
Abstract Background Microalgae has resurfaced interest as a potential biodiesel feedstock. Chlorella vulgaris bio oil was used to produce fatty acid methyl esters as a form of biodiesel. Biodiesel was manufactured in the presence of nano-biocatalysts made of immobilized lipase on functionalized little-layer graphene oxide via a transesterification reaction. A few-layer graphene oxide and Fe 3 O 4 were mixed and tested. With 3-aminopropyl triethoxysilane, as well as a slew of AP and glutaraldehyde, the MGO was fully operationalized. The Rhizopus oryzae lipase was emmobilized on MGO and MGO-AP by electrostatic interactions as well as MGO-AP-GA using covalent bonding. Using AFM, the few-layer graphene oxide was characterized, and the support charge was determined with the zeta potential method. Results: The AFM's report confirmed the few-layer configuration of graphene oxide, while VSM later revealed that all supports were superparamagnetic. In the presence of ROL/MGO-AP-GA, the highest biodiesel conversion of 71. 9 percent was achieved. In addition, this nano-biocatalytic catalyst retained 56. 7 percent of its catalytic results after 5 cycles of the transesterification reaction and was the best catalyst in the case of reusability. Conclusions: The synthesized nanobiocatalyst based on bare and functionalized magnetic graphene oxide was used and optimized in this research for the first time and compared to bare lipase immobilized on magnetic nanoparticles in the process of converting microalgae bio-oil to biodiesel in this research.
Source link: https://doi.org/10.21203/rs.2.18470/v2
Chlorella vulgaris bio oil was used to produce fatty acid methyl esters as a form of biodiesel. Biodiesel was manufactured in the presence of nano-biocatalysts containing immobilized lipase on functionalized few-layer graphene oxide in the presence of a transesterification reaction. The Rhizopus oryzae lipase was immobilized on MGO and MGO-AP, electrostatic interactions, as well as MGO-AP-GA using covalent bonding, as well as MGO-AP-GA using covalent bonding. With the zeta potential method, a few-layer graphene oxide was characterized using AFM, and the surface charge of supports was determined. Results: The AFM's investigation found the few-layer structure of graphene oxide, and VSM also reported that all supports were superparamagnetic. Conclusions: The synthesized nano-biocatalyst based on empty and functionalized graphene oxide was applied and optimized in this study for the first time and compared to bare lipase immobilized on magnetic nanoparticles.
Source link: https://doi.org/10.21203/rs.2.18470/v1
Diminishing fossil fuel resources, as well as the steady rise in energy use, have sparked renewed interest in alternative and renewable energy sources, according to Diminishing fossil fuel resources. Oil was extracted from marula seeds using soxhlet extractor and n-hexane as solvents in this research study. The extracted oil was first determined by physicochemical analysis, but in-situ transesterification of oil with methanol was carried out using eggshell as a catalyst. The state of the oil at room temperature was clear, the smell was mild, the hue was brown, specific density was 3. 46, and iodine value was 100. 68 1. 0. Marula seed oil can be used as a source of triglycerides in the production of biodiesel by transesterification, according to this study. According to ASTM's specifications, the biodiesel made demonstrated theoretical compatibility with diesel engines.
Source link: https://doi.org/10.46602/jcsn.v67i3.751
Biodiesel helps to minimize CO2 emissions in comparison to conventional diesel. This research was designed to produce biodiesel from waste burning oil in the absence of appropriate solid waste-derived heterogeneous catalysts. Firstly, the CaO/K2O catalyst was synthed with eggshells and banana peels. CaO/K2O and CaO/K2O and CaO/K2O and CaO/K2O's methanol to oil ratios ranging from 3:1 to 12:1. When using a 5 %wt CaO/K2O catalyst, the highest biodiesel yield was obtained. However, a 95% yield was achieved after using a 3 %wt CaO/ZnO catalyst load in 2 h with a methanol to oil ratio of 9:1 at 65 u00b0C. Waste frying oil, according to the report, is a good source of biodiesel that can be used to replace nonrenewable energy in the future. Solid waste catalysts may also replace an expensive chemical catalyst, as shown by the catalysts.
Source link: https://doi.org/10.18596/jotcsa.997456
The current research focuses on using palm oil sludge as a low-cost feedstock for biodiesel production. The esterification reaction was achieved by a mixture of sulphuric acid, methanol to palm oil sludge molar ratio, reaction time, and temperature 60 rpm, which were controlled to 400 rpm. According to ASTM D6751 standards, the biodiesel was tested for the fuel characteristics as per the IS 1448 protocol, as well as comparing normal diesel fuel to ASTM D6751 specifications.
Source link: https://doi.org/10.25303/2607rjce071076
* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions