scholarly journals Experimental study of the thermal management process at low-temperature circulating charging of an adsorbed natural gas storage system

2021 ◽  
Vol 2116 (1) ◽  
pp. 012084
Author(s):  
Sergey Chugaev ◽  
Evgeny Strizhenov ◽  
Ilya Men’shchikov ◽  
Andrey Shkolin
Keyword(s):  
Low Temperature ◽  
Natural Gas ◽  
Thermal Management ◽  
Gas Flow ◽  
Storage Capacity ◽  
Carbon Adsorbent ◽  
Operating Pressure ◽  
Promising Alternative ◽  
Adsorbed Natural Gas ◽  
Heat Effects

Abstract Adsorbed natural gas (ANG) technology is a promising alternative to traditional compressed (CNG) and liquefied (LNG) natural gas systems. Nevertheless, energy efficiency and storage capacity of ANG system strongly depends on thermal management of its inner volume because of significant heat effects occurring during adsorption/desorption processes. At the same time low-temperature charging of ANG system provides its higher storage capacity as well as increased fire and explosion safety due to lower operating pressure and “bound-state” of gas molecules with the surface of adsorbent. In present work, a prototype of low-temperature circulating charging system for ANG storage tank filled with shaped microporous carbon adsorbent was studied experimentally in wide ranges of pressures (0.5-3.5 MPa) and gas flow rates (8-18 m3/h).

scholarly journals Heat and Mass Transfer in an Adsorbed Natural Gas Storage System Filled with Monolithic Carbon Adsorbent during Circulating Gas Charging

Nanomaterials ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 3274
Author(s):  
Evgeny M. Strizhenov ◽  
Sergey S. Chugaev ◽  
Ilya E. Men’shchikov ◽  
Andrey V. Shkolin ◽  
Anatoly A. Zherdev
Keyword(s):  
Natural Gas ◽  
Gas Flow ◽  
Storage System ◽  
Carbon Adsorbent ◽  
Gas Storage ◽  
Flow Mode ◽  
Natural Gas Storage ◽  
Promising Alternative ◽  
Adsorbed Natural Gas ◽  
Heat Effects

Adsorbed natural gas (ANG) technology is a promising alternative to traditional compressed (CNG) and liquefied (LNG) natural gas systems. Nevertheless, the energy efficiency and storage capacity of an ANG system strongly depends on the thermal management of its inner volume because of significant heat effects occurring during adsorption/desorption processes. In the present work, a prototype of a circulating charging system for an ANG storage tank filled with a monolithic nanoporous carbon adsorbent was studied experimentally under isobaric conditions (0.5–3.5 MPa) at a constant volumetric flow rate (8–18 m3/h) or flow mode (Reynolds number at the adsorber inlet from 100,000 to 220,000). The study of the thermal state of the monolithic adsorbent layer and internal heat exchange processes during the circulating charging of an adsorbed natural gas storage system was carried out. The correlation between the gas flow mode, the dynamic gas flow temperature, and the heat transfer coefficient between the gas and adsorbent was determined. A one-dimensional mathematical model of the circulating low-temperature charging process was developed, the results of which correspond to the experimental measurements.

scholarly journals Implementing Metal-Organic Frameworks for Natural Gas Storage

Crystals ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 406 ◽  
Author(s):  
Eyas Mahmoud ◽  
Labeeb Ali ◽  
Asmaa El Sayah ◽  
Sara Awni Alkhatib ◽  
Hend Abdulsalam ◽  
...  
Keyword(s):  
Natural Gas ◽  
Thermal Management ◽  
Active Sites ◽  
Storage Capacity ◽  
Metal Organic Frameworks ◽  
Department Of Energy ◽  
Working Capacity ◽  
Adsorbed Natural Gas ◽  
Metal Organic ◽  
Temperature And Pressure

Methane can be stored by metal-organic frameworks (MOFs). However, there remain challenges in the implementation of MOFs for adsorbed natural gas (ANG) systems. These challenges include thermal management, storage capacity losses due to MOF packing and densification, and natural gas impurities. In this review, we discuss discoveries about how MOFs can be designed to address these three challenges. For example, Fe(bdp) (bdp2− = 1,4-benzenedipyrazolate) was discovered to have intrinsic thermal management and released 41% less heat than HKUST-1 (HKUST = Hong Kong University of Science and Technology) during adsorption. Monolithic HKUST-1 was discovered to have a working capacity 259 cm3 (STP) cm−3 (STP = standard temperature and pressure equivalent volume of methane per volume of the adsorbent material: T = 273.15 K, P = 101.325 kPa), which is a 50% improvement over any other previously reported experimental value and virtually matches the 2012 Department of Energy (Department of Energy = DOE) target of 263 cm3 (STP) cm−3 after successful packing and densification. In the case of natural gas impurities, higher hydrocarbons and other molecules may poison or block active sites in MOFs, resulting in up to a 50% reduction of the deliverable energy. This reduction can be mitigated by pore engineering.

scholarly journals EXPERIMENTAL INVESTIGATIONS OF ADSORBED NATURAL GAS STORAGE SYSTEM WITH ENHANCED THERMAL MANAGEMENT

2012 ◽  
Vol 19 ◽  
pp. 190-195 ◽  
Author(s):  
KAZI AFZALUR RAHMAN ◽  
WAI SOONG LOH ◽  
KIM CHOON NG ◽  
WONGEE CHUN
Keyword(s):  
Natural Gas ◽  
Thermal Management ◽  
Storage Capacity ◽  
Storage System ◽  
Thermal Control ◽  
Experimental Investigations ◽  
Discharge Process ◽  
Adsorbed Natural Gas ◽  
Charge Process ◽  
Tube Type

An adsorbed natural gas (ANG) storage system with internal thermal control, based on fin and tube type heat exchanger is investigated in this study. The adsorbent bed, which consists of Maxsorb III activated carbon packed in between copper fins and tubes, is demonstrated to study the storage capacity and thermal management of the ANG storage system. The cylinder is pressurized up to 35 bar and water is circulated through the tubes during charge process for quick removal of adsorption heat, thus to increase the storage capacity. Similarly, the adsorbent bed is heated up during discharge process to maximize the gas delivery. The current experimental arrangement presented shows higher storage capacity and better thermal management than the adsorbent bed without fin and tube arrangement.

scholarly journals Carbons Suitable for Medium Pressure (6.9 MPa) Methane Storage

2000 ◽  
Vol 18 (6) ◽  
pp. 515-527 ◽  
Author(s):  
D.F. Quinn ◽  
S. Ragan
Keyword(s):  
Natural Gas ◽  
Storage Capacity ◽  
Volume Fraction ◽  
Carbon Adsorbent ◽  
Pore Wall ◽  
Micropore Volume ◽  
Methane Adsorption ◽  
Methane Storage ◽  
Compressed Natural Gas ◽  
Adsorbed Natural Gas

The storage and delivery of natural gas using adsorbent carbon monoliths at 3.4 MPa is only about 75% that of natural gas compressed to 21 MPa on an equal volume basis. One possible way to increase ambient temperature adsorbed natural gas (ANG) storage is to simply increase the storage pressure. However, this will only be beneficial if there is unfilled micropore capacity within the carbon adsorbent. Carbons that have been optimized for storage at 3.4 MPa may not have sufficient micropore capacity to give increased storage at 6.9 MPa. In the present work, carbons have been prepared which are considered to be more useful for storage at 6.9 MPa than at 3.4 MPa due to their having an increased micropore volume fraction per monolith or storage volume. Although the pore wall separation of these carbons may not be ideal for maximum adsorbate density, these carbons showed that more than 180 v/v can be delivered from 6.9 MPa. This value approaches that of delivery from compressed natural gas (CNG) and exceeds it if the rectangular external envelope is considered as the realistic volume of the storage vessel. The results obtained clearly show the diminishing returns for methane adsorption storage with pressure increase. An increase of only about 30% in storage capacity was achieved from a doubling of the storage pressure from 3.4 MPa to 6.9 MPa.

Monolithic microporous carbon adsorbent for low-temperature natural gas storage

Adsorption ◽  
2019 ◽  
Vol 25 (8) ◽  
pp. 1559-1573 ◽  
Author(s):  
A. V. Shkolin ◽  
A. A. Fomkin ◽  
I. E. Men’shchikov ◽  
E. M. Strizhenov ◽  
A. L. Pulin ◽  
...  
Keyword(s):  
Low Temperature ◽  
Natural Gas ◽  
Carbon Adsorbent ◽  
Gas Storage ◽  
Microporous Carbon ◽  
Natural Gas Storage ◽  
Microporous Carbon Adsorbent

scholarly journals Experimental study of heat transfer in adsorbed natural gas storage system filled with microporous monolithic active carbon

2021 ◽  
Vol 2116 (1) ◽  
pp. 012085
Author(s):  
Evgeny Strizhenov ◽  
Sergey Chugaev ◽  
Ilya Men’shchikov ◽  
Andrey Shkolin ◽  
Igor Shelyakin
Keyword(s):  
Heat Transfer ◽  
Natural Gas ◽  
Gas Flow ◽  
Thermal State ◽  
Storage System ◽  
Internal Heat ◽  
Gas Storage ◽  
Flow Mode ◽  
Natural Gas Storage ◽  
Adsorbed Natural Gas

Abstract The study of the thermal state of the monolithic adsorbent layer and internal heat exchange processes during the circulating charging of an adsorbed natural gas storage system was carried out. The correlation between gas flow mode and the heat transfer coefficient between gas and adsorbent is determined under conditions of mass transfer.

Direct Measurements of Volumetric Gas Storage Capacity and Some New Insight into Adsorbed Natural Gas Storage

2001 ◽  
Vol 15 (5) ◽  
pp. 1241-1246 ◽  
Author(s):  
J. Sun ◽  
T. D. Jarvi ◽  
L. F. Conopask ◽  
S. Satyapal ◽  
M. J. Rood ◽  
...  
Keyword(s):  
Natural Gas ◽  
Storage Capacity ◽  
Gas Storage ◽  
Natural Gas Storage ◽  
Adsorbed Natural Gas ◽  
Direct Measurements ◽  
Insight Into

Computational prediction of high methane storage capacity in V-MOF-74

2017 ◽  
Vol 19 (31) ◽  
pp. 21132-21139 ◽  
Author(s):  
Seokwon Hyeon ◽  
Young-Chul Kim ◽  
Jihan Kim
Keyword(s):  
Natural Gas ◽  
Storage Capacity ◽  
Computational Prediction ◽  
Adsorption Properties ◽  
Methane Adsorption ◽  
Methane Storage ◽  
Adsorbed Natural Gas ◽  
Cu And Zn

The methane adsorption properties in M-MOF-74 (M = Mg, Ti, V, Cr, Mn, Co, Ni, Cu, and Zn) were investigated for potential adsorbed natural gas (ANG) vehicle applications.

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