scholarly journals Experimental Measurement of Bulk Thermal Conductivity of Activated Carbon with Adsorbed Natural Gas for ANG Energy Storage Tank Design Application

Energies ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 682 ◽  
Author(s):  
Atila Ertas ◽  
Christopher T. R. Boyce ◽  
Utku Gulbulak

The development of adsorptive natural gas storage tanks for vehicles requires the synthesis of many technologies. The design for an effective Adsorbed Natural Gas (ANG) tank requires that the tank be filled isothermally within a five-minute charge time. The heat generated within the activated carbon is on the order of 150 MJ/m 3 of storage volume. The tank can be effectively buffered using Phase Change Material (PCM) to absorb the heat. The effective design of these tanks requires knowledge of the thermal properties of activated carbon with adsorbed methane. This paper discusses experimental measurements of the thermal conductivity of activated carbon with adsorbed methane. It was found that within the tank the thermal conductivity remains almost constant within the temperature and pressure ranges that ANG tanks will operate.

2014 ◽  
Vol 53 (11) ◽  
pp. 4522-4523 ◽  
Author(s):  
Pradeepta K. Sahoo ◽  
Mathew John ◽  
Bharat L. Newalkar ◽  
N. V. Choudhary ◽  
K. G. Ayappa

Methane ◽  
2021 ◽  
Vol 1 (1) ◽  
pp. 24-37
Author(s):  
Muhammad Alfiza Farhan ◽  
Yuichi Sugai ◽  
Nuhindro Priagung Widodo ◽  
Syafrizal Syafrizal

The leakage of methane from the subsurface on the coalfield or natural gas field invariably becomes an important issue nowadays. In notable addition, materials such as activated carbon, zeolites, and Porapak have been successfully identified as adsorbents. Those adsorbents could adsorb methane at atmospheric pressure and room temperature. Therefore, in this scholarly study, a new method using adsorbents to detect points of methane leakage that can cover a wide-scale area was developed. In the beginning, the most capable adsorbent should be determined by quantifying adsorbed methane amount. Furthermore, checking the possibility of adsorption in the column diffusion and desorption method of adsorbents is equally necessary. The most capable adsorbent was activated carbon (AC), which can adsorb 1.187 × 10−3 mg-CH4/g-AC. Hereinafter, activated carbon successfully can adsorb methane through column diffusion, which simulates the situation of on-site measurement. The specific amount of adsorbed methane when the initial concentrations of CH4 in a bag were 200 ppm, 100 ppm, and 50 ppm was found to be 0.818 × 10−3 mg-CH4/g-AC, 0.397 × 10−3 mg-CH4/g-AC, 0.161 × 10−3 mg-CH4/g-AC, respectively. Desorption of activated carbon analysis shows that methane concentration increases during an hour in the temperature bath under 80 °C. In conclusion, soil methane leakage points can be detected using activated carbon by identifying the observed methane concentration increase.


Crystals ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 406 ◽  
Author(s):  
Eyas Mahmoud ◽  
Labeeb Ali ◽  
Asmaa El Sayah ◽  
Sara Awni Alkhatib ◽  
Hend Abdulsalam ◽  
...  

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.


2014 ◽  
Vol 31 (11) ◽  
pp. 1994-2002 ◽  
Author(s):  
Mahdi Khorashadizadeh ◽  
Mahdi Niknam Shahrak ◽  
Akbar Shahsavand

2016 ◽  
Vol 705 ◽  
pp. 126-130 ◽  
Author(s):  
Dewa Ngakan Ketut Putra Negara ◽  
Tjokorda Gde Tirta Nindhia ◽  
I Wayan Surata ◽  
Made Sucipta

Currently, the use of activated carbon (AC) increased significantly for the industrial sector, health, environment and agriculture. However, the commercial price of activated carbon is relatively expensive, especially for micro industries mainly due to high production costs. Additionally, it comes from non-renewable sources with limited availability. This prompted the researchers to study the production of AC from inexpensive precursors and renewable; one of which is made from bamboo. AC production can be done through a pyrolysis process followed by physical or chemical activation. Differences in raw materials and activation methods used can affect the characteristics and quality of activated carbon produced. This paper reviews the development and application of bamboo activated carbons in the life sectors and their potency for use as an adsorbent material for the absorbed natural gas (ANG).


2011 ◽  
Vol 50 (23) ◽  
pp. 13000-13011 ◽  
Author(s):  
Pradeepta K. Sahoo ◽  
Mathew John ◽  
Bharat L. Newalkar ◽  
N. V. Choudhary ◽  
K. G. Ayappa

2018 ◽  
Vol 44 ◽  
pp. 00038 ◽  
Author(s):  
Maciej Dziewiecki

This paper present the idea of a natural gas reservoir, which uses technology of gas storage by adsorption on activated carbon. Such reservoir can be feeded with Liquid Natural Gas. The framework of article includes theoretical principals of gas-solid physical adsorption, and explains most important concepts associated with it. Moreover, concept of such tank and working regime is presented. Selected subject is very promising in the field of natural gas storage, although this is still a niche issue. Lack of universal models of gases physical adsorption made it very difficult to predict the runs of processes occurring in the proposed reservoir, which is why this project was based on models confirmed during in the earlier studies.


2010 ◽  
Vol 24 (13) ◽  
pp. 1421-1424 ◽  
Author(s):  
WAI SOONG LOH ◽  
KAZI AFZALUR RAHMAN ◽  
KIM CHOON NG ◽  
BIDYUT BARAN SAHA ◽  
ANUTOSH CHAKRABORTY

This paper presents the adsorption isotherm experiment of Methane and Maxsorb III activated carbon that was conducted and analyzed at temperatures from 5 to 55 °C and pressures up to 2.2 MPa in a volumetric apparatus. It is a complementary to the previous efforts by ways of analyzing the importance between charging and discharging rate, temperature increase and reduce of the bed, the heat transfer process, and the cylinder cooling and heating requirements during the charging and discharging of adsorbed natural gas.


RSC Advances ◽  
2017 ◽  
Vol 7 (36) ◽  
pp. 22170-22177 ◽  
Author(s):  
Jie Han ◽  
Songyang Liu

The addition of activated carbon (10%) effectively enhances the thermal conductivity and heat transfer properties of the MA/H-diatomite-2 composite PCM.


Sign in / Sign up

Export Citation Format

Share Document