Storage of Methane Gas in the Form of Clathrates in the Presence of Natural Bioadditives

[Image: see text] Methane (CH(4)) and carbon dioxide (CO(2)), the important greenhouse gases, are capable of forming clathrate hydrates under some suitable thermodynamic conditions. The gas storage capacity of these materials is high, and therefore they are often useful in gas storage applications....

Full description

Bibliographic Details
Published in:ACS Omega
Main Authors: Kiran, Burla Sai, Prasad, Pinnelli S. R.
Format: Text
Language:English
Published: American Chemical Society 2018
Subjects:
Online Access:http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6643833/
http://www.ncbi.nlm.nih.gov/pubmed/31458463
https://doi.org/10.1021/acsomega.8b03097
Description
Summary:[Image: see text] Methane (CH(4)) and carbon dioxide (CO(2)), the important greenhouse gases, are capable of forming clathrate hydrates under some suitable thermodynamic conditions. The gas storage capacity of these materials is high, and therefore they are often useful in gas storage applications. Certain expensive and toxic chemicals are employed to accelerate/decelerate the process. In this study, we report rapid (∼30–50 min) and effective (∼80%) methane hydrate conversion in the presence of three naturally occurring additives such as dry powders from Nelumbo nucifera (Indian lotus), Piper betle (betel), and Azadirachta indica (neem), at lower concentrations (0.5 wt %). Obtained results were carefully compared with the well-known kinetic promoter (sodium dodecyl sulfate). All the biomaterials are equally good kinetic promoters for methane hydrates, although the required subcooling is significantly large. However, no hydrate formation is observed with CO(2) gas.