Process dynamic investigations and emission analyses of biodiesel produced using Sr-Ce mixed metal oxide heterogeneous catalyst was written by Banerjee, Sushmita;Sahani, Shalini;Chandra Sharma, Yogesh. And the article was included in Journal of Environmental Management in 2019.Electric Literature of C20H40O2 The following contents are mentioned in the article:
The present study explores the feasibility of Sr-Ce based mixed metal oxides for its performance in transesterification reaction of waste cooking oil. The catalyst synthesis was carried out through gel combustion route and was characterized through several techniques including thermal anal. (TGA-DTA), X-ray diffraction (XRD), attenuated total reflectance based Fourier transform IR spectroscopy (ATR-FTIR), high resolution SEM (HR-SEM) assisted with EDX, BET sp. surface area and Hammett indicator basicity. The enhanced activity of the catalyst was investigated at pH 7.0 with Sr-Ce at. ratio of 3:1 at 900掳C of calcination temperature Influences of various process parameters on transesterification efficiency were carefully investigated. The exptl. results demonstrated that maximum transesterification efficacy of 99.5% was achieved under optimized reaction conditions with catalyst dose of 2.0 wt%, oil-to-methanol ratio 1:14, reaction time 120 min, reaction temperature 65掳C and stirring speed of 700 rpm. For better interpretation of the process, the reaction rate was computed by employing pseudo-first and pseudo-second order kinetics model at varying reaction temperature (50掳C-75掳C). The transesterification data agreed well with pseudo-first order model with highest rate constant value of 2.5 脳 10-3 min-1 was evaluated at 65掳C. Activation energy and frequency of the reaction was quantified from the Arrhenius expression as 17.04 kJ/mol and 9.92 min-1, resp. Thermodn. anal. of the reaction system suggests that the transesterification of the waste cooking oil followed endergonic reaction pathway. Synthesis of biodiesel was ascertained from the H1 -NMR and FTIR anal. of the transesterified product, further, the physicochem. properties of the biodiesel were also compared with that of diesel fuel and the resultant values were found to be within ASTM limits. Reusability study was also conducted and it indicated that the catalyst can be easily regenerated and could be effectively reused up to four runs. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8Electric Literature of C20H40O2).
Methyl nonadecanoate (cas: 1731-94-8) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits, including apples, durians, pears, bananas, pineapples, and strawberries. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.Electric Literature of C20H40O2
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics