skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Effect of cycling and thermal control on the storage and dynamics of a 40-L monolithic adsorbed natural gas tank

Journal Article · · Fuel

Adsorbed natural gas systems have been proposed as a cost-effective storage alternative to compressed and liquefied natural gas. This has led many groups to search and design sorbent materials with large methane storage capacities since natural gas is approximately 90% methane. The other 10% of natural gas contains larger hydrocarbons which can decrease the useable storage capacity of adsorbent systems. In this work, the effect of large hydrocarbons on the storage and dynamics of a 40-L adsorbed natural gas system, containing 20.5 kg of monolithic carbon adsorbent, produced by the University of Missouri, is reported. It was found that over the course of 20 cycles, due to the retention of 1.9 kg of non-methane components by the monoliths, the useable volumetric storage dropped 16%, and the amount of gas delivered dropped 10%. A second cycling experiment found that by using thermal control while the system discharged, the mass retention decreased to 0.91 kg, and the useable volumetric storage and delivered mass only dropped 7% and 5%, respectively. The effects of the mass retention, storage loss, and thermal control on the system’s charge and discharge dynamics were then analyzed to provide a complete picture of the long-term effects of cycling large scale adsorbed natural gas systems with and without active thermal control.

Research Organization:
Univ. of Missouri, Columbia, MO (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Grant/Contract Number:
FG36-08GO18142
OSTI ID:
1613541
Alternate ID(s):
OSTI ID: 1635988
Journal Information:
Fuel, Vol. 244, Issue C; ISSN 0016-2361
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 12 works
Citation information provided by
Web of Science

References (25)

Research on the theory and application of adsorbed natural gas used in new energy vehicles: A review journal May 2016
Microporous carbon monolith synthesis and production for methane storage journal July 2017
Investigation of load-dependent heat of adsorption of alkanes and alkenes on zeolites and activated carbon journal March 2017
Efficient Dynamic Charge and Discharge of an Adsorbed Natural Gas Storage System journal April 2005
Nanospace engineering of KOH activated carbon journal December 2011
Impact of gas composition on natural gas storage by adsorption journal May 1999
A New Equation of State and Tables of Thermodynamic Properties for Methane Covering the Range from the Melting Line to 625 K at Pressures up to 100 MPa journal November 1991
Cycling and Regeneration of Adsorbed Natural Gas in Microporous Materials journal November 2017
Adsorbed methane storage for vehicular applications journal July 2015
Selective adsorption of simple mixtures in slit pores: a model of methane-ethane mixtures in carbon journal January 1992
Charge-Discharge Characteristics of an Adsorbed Natural Gas Storage System under Ambient Conditions journal July 2014
Dynamic delivery analysis of adsorptive natural gas storages at room temperature journal April 2007
Controlled charge and discharge of a 40-L monolithic adsorbed natural gas tank journal July 2018
Experimental analysis of the efficiency on charge/discharge cycles in natural gas storage by adsorption journal January 2011
A pilot study of activated carbon and metal–organic frameworks for methane storage journal January 2016
Thermal analysis of adsorptive natural gas storages during dynamic charge phase at room temperature journal October 2007
Engineered Porous Carbon for High Volumetric Methane Storage journal August 2014
Using computer simulation to study the properties of molecules in micropores journal January 1996
Evaluating methane adsorbed film densities on activated carbon in dynamic systems journal December 2018
Dynamic discharge and performance of a new adsorbent for natural gas storage journal December 2001
Thermal regeneration of a spent activated carbon previously used as hydrogen sulfide adsorbent journal August 2001
Effect of cycling operations on an adsorbed natural gas storage journal January 2005
Influence of exhaust gas heating and L/D ratios on the discharge efficiencies for an activated carbon natural gas storage system journal April 2014
Development of composite adsorbents and storage vessels for domestically used adsorbed natural gas journal April 2016
Impacts of Gas Impurities from Pipeline Natural Gas on Methane Storage in Metal–Organic Frameworks during Long-Term Cycling journal July 2017