User profiles for Rajnish Kumar

Rajnish Kumar

Professor, Department of Chemical Engineering; Indian Institute of Technology Madras
Verified email at iitm.ac.in
Cited by 9847

A review of the hydrate based gas separation (HBGS) process for carbon dioxide pre-combustion capture

P Babu, P Linga, R Kumar, P Englezos - Energy, 2015 - Elsevier
In this work, a systematic review of the literature work done so far on the use of hydrate
crystallization as a basis to develop data for the hydrate based gas separation (HBGS) process …

The clathrate hydrate process for post and pre-combustion capture of carbon dioxide

P Linga, R Kumar, P Englezos - Journal of hazardous materials, 2007 - Elsevier
One of the new approaches for capturing carbon dioxide from treated flue gases (post-combustion
capture) is based on gas hydrate crystallization. The basis for the separation or …

Influence of contact medium and surfactants on carbon dioxide clathrate hydrate kinetics

A Kumar, T Sakpal, P Linga, R Kumar - Fuel, 2013 - Elsevier
Carbon dioxide (CO 2 ) hydrate formation kinetic was investigated in a fixed bed crystallizer
at constant pressure (3.55MPa) and temperature (274K). Porous media of three different …

Synthesis of biodiesel in supercritical fluids

G Madras, C Kolluru, R Kumar - Fuel, 2004 - Elsevier
Biodiesel, an alternative biodegradable diesel fuel, is derived from triglycerides by
transesterification with alcohols. In this work, the transesterification of sunflower oil was investigated …

Gas hydrate formation from hydrogen/carbon dioxide and nitrogen/carbon dioxide gas mixtures

P Linga, R Kumar, P Englezos - Chemical engineering science, 2007 - Elsevier
Gas hydrates from CO 2 /N 2 and CO 2 /H 2 gas mixtures were formed in a semi-batch stirred
vessel at constant pressure and temperature of 273.7K. These mixtures are of interest to …

Hydrogen storage in clathrate hydrates: Current state of the art and future directions

HP Veluswamy, R Kumar, P Linga - Applied Energy, 2014 - Elsevier
Hydrogen is looked upon as the next generation clean energy carrier, search for an efficient
material and method for storing hydrogen has been pursued relentlessly. Improving …

Role of surfactants in promoting gas hydrate formation

A Kumar, G Bhattacharjee, BD Kulkarni… - Industrial & …, 2015 - ACS Publications
Gas hydrates have been proposed as a potential technology for a number of applications,
such as separation of gas mixtures, CO 2 capture, transportation, and sequestration, methane …

A new apparatus to enhance the rate of gas hydrate formation: Application to capture of carbon dioxide

P Linga, R Kumar, JD Lee, J Ripmeester… - International Journal of …, 2010 - Elsevier
A new apparatus employing a modular, mechanically agitated gas-inducing crystallizer is
used to demonstrate the capture of CO 2 via hydrate crystallization. The crystallizer enhances …

Rapid methane hydrate formation to develop a cost effective large scale energy storage system

HP Veluswamy, AJH Wong, P Babu, R Kumar… - Chemical Engineering …, 2016 - Elsevier
Natural gas (NG) is the cleanest burning fossil fuel and its usage can significantly reduce CO
2 emissions from power plants. With its widespread use, there is an ever increasing need to …

Pre-combustion capture of carbon dioxide in a fixed bed reactor using the clathrate hydrate process

P Babu, R Kumar, P Linga - Energy, 2013 - Elsevier
Hydrate based gas separation (HBGS) process with silica sand and silica gel as contact
medium was employed to capture CO 2 from fuel gas mixture. Gas uptake measurement at three …