@article {48065,
	title = {Reduction of carbon dioxide to dimethylformamide using ruthenium doped Mg/Al hydrotalcites under supercritical conditions},
	journal = {Journal of CO2 Utilization},
	volume = {61},
	year = {2022},
	month = {JUL},
	pages = {102055},
	type = {Article},
	abstract = {<p>
	The utilization of carbon dioxide is one of the developing areas due to its significant contribution to global warming. Reducing carbon dioxide (CO2) to formic acid and its derivatives has gained importance because of its thermodynamic limitations and high industrial demand. In this article, we report the synthesis of dime-thylformamide (DMF) using ruthenium doped Mg/Al calcined hydrotalcite by CO2 hydrogenation in the presence of dimethylamine (DMA). At optimized conditions, complete conversion of dimethylamine was achieved with more than 92\% product yield at 170 degrees C and 13 MPa pressure with a reaction time of 6 h. Key catalyst properties were determined using X-ray powder diffraction (XRD), X-ray photoelectron spectroscopy (XPS), CO2-temper-ature programmed desorption (TPD), H-2 temperature-programmed reduction (TPR) and Fourier transform infrared (FTIR). The determination of surface morphology was carried out using field emission scanning electron microscope (FE-SEM) and high-resolution transmission electron microscopy (HR-TEM). At the same time, the chemical composition was verified by energy-dispersive X-ray (EDS). In addition, kinetic modeling is performed using the two site Langmuir-Hinshelwood-Hougen-Watson model. The regressed kinetic parameters gave an appropriate fit with experimental concentration values and activation energy is calculated as 413 kJ/mol K-1.</p>
},
	keywords = {Dimethylformamide, Hydrogenation, hydrotalcite, Langmuir-Hinshelwood-Hougen-Watson model, Supercritical carbon dioxide},
	issn = {2212-9820},
	doi = {10.1016/j.jcou.2022.102055},
	author = {Chaudhary, Sagar D. and Rahatade, Shardul S. and Joshi, Sunil S. and Mali, Nilesh A.}
}
@article {49601,
	title = {A detailed study on heat of reaction and heat rate determination of nitrobenzene hydrogenation to aniline reaction using power compensation reaction calorimeter},
	journal = {Process Safety Progress},
	volume = {44},
	year = {2025},
	month = {MAR},
	pages = {132-141},
	type = {Article},
	abstract = {<p>The present study reports experimental heat of reaction and heat rate data of nitrobenzene hydrogenation to aniline reaction with process parameter variation. A high-pressure isothermal power compensation reaction calorimeter was used for this work. A systematic and step-by-step procedure is also reported to determine the heat of reaction and heat rate for a highly exothermic reaction. The sensitivity of experimental molar heat of reaction (kJ/mol) and evolved heat rate (W) values for nitrobenzene hydrogenation reaction was analyzed for various important process parameters, such as temperature, pressure, substrate quantity, solvent quantity, catalyst quantity, RPM, and hydrogen feed rate. Nitrobenzene hydrogenation reactions were conducted using ethanol as solvent and 5\% Pd/C as a catalyst with 55-65 degrees C temperature and 7-9 Bar absolute pressure range. More than 99.99\% conversion of nitrobenzene to aniline was obtained, and no other by-products were found. The average experimental nitrobenzene hydrogenation heat of reaction of 21 different experiments was found to be -581.87 kJ/mol, and the maximum heat rate during the nitrobenzene hydrogenation reaction was found to be 16.16 W for experiments using 10 gm of nitrobenzene in solvent.</p>
},
	keywords = {heat of reaction, heat rate, Hydrogenation, nitrobenzene, power compensation, reaction calorimeter},
	issn = {1066-8527},
	doi = {10.1002/prs.12663},
	author = {Kumar, Rajendra and Mane, Pradip R. and Shingote, Savita K. and Mali, Nilesh A.}
}
