Prathyusha Mekala
Indian Institute of Technology Madras
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Publication
Featured researches published by Prathyusha Mekala.
Journal of Natural Gas Chemistry | 2012
Abhishek Joshi; Prathyusha Mekala; Jitendra S. Sangwai
Abstract Semiclathrate hydrates of tetra- n -butyl ammonium bromide (TBAB) offer potential solution for gas storage, transportation, separation of flue gases and CO 2 sequestration. Models for phase equilibria for these systems have not yet been developed in open literatures and thus require urgent attention. In this work, the first attempt has been made to model phase equilibria of semiclathrate hydrates of CH 4 , CO 2 and N 2 in aqueous solution of TBAB. A thermodynamic model for gas hydrate system as proposed by Chen and Guo has been extended for semiclathrate hydrates of gases in aqueous solution of TBAB. A correlation for the activity of water relating to the system temperature, concentration of TBAB in the system and the nature of guest gas molecule has been proposed. The model results have been validated against available experimental data on phase equilibria of semiclathrate hydrate systems of aqueous TBAB with different gases as guest molecule. The extended Chen and Guos model is found to be suitable to explain the promotion effect of TBAB for the studied gaseous system such as, methane, carbon dioxide and nitrogen as a guest molecule. Additionally, a correlation for the increase in equilibrium formation temperature (hydrate promotion temperature, Δ T p ) of semiclathrate hydrate system with respect to pure gas hydrate system has been developed and applied to semiclathrate hydrate of TBAB with several gases as guest molecules. The developed correlation is found to predict the promotion effect satisfactorily for the system studied.
Energy & Fuels | 2014
Prathyusha Mekala; Ponnivalavan Babu; Jitendra S. Sangwai; Praveen Linga
Journal of Petroleum Science and Engineering | 2014
Prathyusha Mekala; Marc Busch; Deepjyoti Mech; Rachit S. Patel; Jitendra S. Sangwai
Journal of Natural Gas Science and Engineering | 2014
Tejaswi Barmavath; Prathyusha Mekala; Jitendra S. Sangwai
Calphad-computer Coupling of Phase Diagrams and Thermochemistry | 2015
Prathyusha Mekala; Vamsi Krishna Kamisetty; Wen-Ming Chien; Renhai Shi; Dhanesh Chandra; Jitendra S. Sangwai; Anjali Talekar; Amrita Mishra
Journal of Petroleum Science and Engineering | 2014
Prathyusha Mekala; Jitendra S. Sangwai
Archive | 2013
Jitendra S. Sangwai; Rachit S. Patel; Prathyusha Mekala; Marc Busch
Calphad-computer Coupling of Phase Diagrams and Thermochemistry | 2015
Renhai Shi; Wen-Ming Chien; Amrita Mishra; Vamsi Krishna Kamisetty; Anjali Talekar; Prathyusha Mekala; Ivan Gantan; Dhanesh Chandra
Offshore Technology Conference-Asia | 2014
Prathyusha Mekala; Jitendra S. Sangwai
North Africa Technical Conference and Exhibition | 2013
Prathyusha Mekala; Jitendra S. Sangwai