Adsorbed Natural Gas Storage for Onboard Applications

Abstract

Given its abundance and clean combustion, natural gas (NG) is one of the leading sources of energy to meet present demands. However, the storage and transportation of NG remain challenging. Besides the commonly used NG storage methods such as compression and liquefaction, adsorbed NG is an attractive alternative. Here, the requirements for vehicles to be powered by adsorbed natural gas (ANG) are examined. Despite top‐performing adsorbents and present‐day engineering solutions, there remain obstacles that prevent vehicles fueled by ANG from becoming commonplace. Herein, these challenges are highlighted to inspire engineering solutions for onboard ANG systems.

Water Bridges Substitute for Defects in Amine-Functionalized UiO-66, Boosting CO2 Adsorption

“…In our previous work, pellets were used in the apparatus when measuring UiO-66 binary CO 2 /H 2 O adsorption isotherms, and the dry pellets were weighed in a UHP nitrogen-filled glovebox . Pellet formation of MOFs can be challenging to ensure that the adsorbent powder does not suffer significant losses in adsorption performance. − For UiO-66, direct pressing has been shown to result in only slight losses in physical adsorption capacity; however, the impacts of pressure vary depending on the MOF examined and can be a function of defect density. , In many cases, measurement of adsorption isotherm data on adsorbent pellets is preferred because a pellet is typically the material that will be utilized in the application. ,, However, in other cases, pelletization adds additional complexity due to the addition of clay or polymer binders, and it is preferred to measure pure powders.…”

“…75,77 In many cases, measurement of adsorption isotherm data on adsorbent pellets is preferred because a pellet is typically the material that will be utilized in the application. 12,76,78 However, in other cases, pelletization adds additional complexity due to the addition of clay or polymer binders, and it is preferred to measure pure powders.…”

Suitability analysis of sustainable nanoporous adsorbents for higher biomethane adsorption and storage applications

“…More significant results are volumetric capacities that are easy to use with compression storage methods. 62 All the materials exhibit higher storage/release, and even some materials show nearly up to three times higher storage than compression at 6.5 MPa pressure.…”

“…Bulk density of the material plays a major role in availing the surface area to the adsorbate; bulkier the material higher the surface area exposure for adsorption. More significant results are volumetric capacities that are easy to use with compression storage methods 62 . All the materials exhibit higher storage/release, and even some materials show nearly up to three times higher storage than compression at 6.5 MPa pressure.…”

Temperature based Enhanced Desorption of Adsorbed Biomethane Stored on Sustainable Nanoporous Materials

“…A variety of materials like Metal-organic frameworks (MOFs), porous organic frameworks (POFs), zeolites, carbon-based materials etc., has been analysed for this purpose [4,5]. MOFs have been one of the most investigated materials and shown greater storage, and even some have crossed the DoE targets [6,7]. However, their chemical synthesis, cost, disposal and non-renewability remains doubtful.…”