Experimental investigation of methane storage on various adsorbents

The Adsorption of methane gas on porous materials has attracted attention due to its enhanced adsorptive storage capabilities. Although much research has been done in this field, the adsorption parameters of methane at sub-critical temperatures are scarcely reported in the literature. At higher temp...

Full description

Saved in:
Bibliographic Details
Main Author: Keshyap, Jill Priya
Other Authors: Anutosh Chakraborty
Format: Final Year Project
Language:English
Published: 2016
Subjects:
Online Access:http://hdl.handle.net/10356/68620
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Nanyang Technological University
Language: English
id sg-ntu-dr.10356-68620
record_format dspace
spelling sg-ntu-dr.10356-686202023-03-04T19:15:13Z Experimental investigation of methane storage on various adsorbents Keshyap, Jill Priya Anutosh Chakraborty School of Mechanical and Aerospace Engineering DRNTU::Engineering The Adsorption of methane gas on porous materials has attracted attention due to its enhanced adsorptive storage capabilities. Although much research has been done in this field, the adsorption parameters of methane at sub-critical temperatures are scarcely reported in the literature. At higher temperatures, the influence of the microstructure is less important since the repulsive adsorbate-solid interactions dominate. This Final Year Paper (FYP) thus reports an investigation of various microporous materials and the effects of their microstructures on the adsorption uptake levels of methane at subcritical temperatures. The experiments were conducted through a volumetric technique at subcritical temperatures ranging from 90 K to 190 K. The studied materials included (i) metal-organic frameworks (1% Na doped MIL-101 and 1% Li doped MIL-101) and an activated carbon (ii) Maxsorb III. Results demonstrated that due to high surface areas, Maxsorb III obtained the highest gravimetric uptake of methane with an amount of 0.76 kg/kg (at 0.1 bar). Among the MOFs, although the proportion of Li and Na doping retained the microstructural characteristics of the parent MOF, MIL-101, its adsorption capability was not enhanced after the modification. In addition, the adsorption isotherms were fitted with two isotherm models proposed by Langmuir and Toth, with the latter being a better fit due to its accountability of the heterogeneity parameter found in all the adsorbents. Isosteric heats of adsorption were also derived using the Clausius−Clapeyron equation, confirming that increased pore size geometries positively influence the adsorbent-adsorbate interactions of methane and microporous adsorbents. Bachelor of Engineering (Mechanical Engineering) 2016-05-30T03:20:17Z 2016-05-30T03:20:17Z 2016 Final Year Project (FYP) http://hdl.handle.net/10356/68620 en Nanyang Technological University 81 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering
spellingShingle DRNTU::Engineering
Keshyap, Jill Priya
Experimental investigation of methane storage on various adsorbents
description The Adsorption of methane gas on porous materials has attracted attention due to its enhanced adsorptive storage capabilities. Although much research has been done in this field, the adsorption parameters of methane at sub-critical temperatures are scarcely reported in the literature. At higher temperatures, the influence of the microstructure is less important since the repulsive adsorbate-solid interactions dominate. This Final Year Paper (FYP) thus reports an investigation of various microporous materials and the effects of their microstructures on the adsorption uptake levels of methane at subcritical temperatures. The experiments were conducted through a volumetric technique at subcritical temperatures ranging from 90 K to 190 K. The studied materials included (i) metal-organic frameworks (1% Na doped MIL-101 and 1% Li doped MIL-101) and an activated carbon (ii) Maxsorb III. Results demonstrated that due to high surface areas, Maxsorb III obtained the highest gravimetric uptake of methane with an amount of 0.76 kg/kg (at 0.1 bar). Among the MOFs, although the proportion of Li and Na doping retained the microstructural characteristics of the parent MOF, MIL-101, its adsorption capability was not enhanced after the modification. In addition, the adsorption isotherms were fitted with two isotherm models proposed by Langmuir and Toth, with the latter being a better fit due to its accountability of the heterogeneity parameter found in all the adsorbents. Isosteric heats of adsorption were also derived using the Clausius−Clapeyron equation, confirming that increased pore size geometries positively influence the adsorbent-adsorbate interactions of methane and microporous adsorbents.
author2 Anutosh Chakraborty
author_facet Anutosh Chakraborty
Keshyap, Jill Priya
format Final Year Project
author Keshyap, Jill Priya
author_sort Keshyap, Jill Priya
title Experimental investigation of methane storage on various adsorbents
title_short Experimental investigation of methane storage on various adsorbents
title_full Experimental investigation of methane storage on various adsorbents
title_fullStr Experimental investigation of methane storage on various adsorbents
title_full_unstemmed Experimental investigation of methane storage on various adsorbents
title_sort experimental investigation of methane storage on various adsorbents
publishDate 2016
url http://hdl.handle.net/10356/68620
_version_ 1759857279118606336