Updated on 2024/10/02

Information

 

写真a

 
TAMBARIA NOELY THEODORA
 
Organization
Faculty of Engineering Department of Earth Resources Engineering Assistant Professor
Title
Assistant Professor
External link

Papers

  • The Effectiveness of the Continuous and Cyclic Method on CO<sub>2</sub>-ECBM

    Natural Resources   2024   ISSN:2158-706X

     More details

  • Examination of the Factors Inhibiting CO<inf>2</inf> Adsorption on Coal: A Case Study from Shallow-Depth Low-Rank Coal Seams

    Tambaria T.N., Sugai Y., Anggara F.

    ACS Omega   8 ( 45 )   42329 - 42339   2023.11

     More details

    Language:English   Publisher:ACS Omega  

    Understanding the inhibitory factors affecting the adsorption of CO2 on low-rank coal from shallow-depth coal seams is essential to identify potential coal seams for CO2 sequestration. The CO2 adsorption capacity of shallow-depth coals was measured at a low pressure on raw and dry coals. The samples were also prepared for organic analyses, scanning electron microscopy analyses, and low-temperature nitrogen adsorption analyses to evaluate the CO2 adsorption and identify the inhibitory factors. An investigation was conducted to determine how CO2 adsorption occurs on coal by fitting experimental data to adsorption isotherm models, followed by analyzing the results based on the statistical analysis. In addition, this study used Henry's law, surface potential, and Gibbs free energy to identify the adsorption inhibitor between CO2 and coal. The CO2 adsorption experiment was conducted on raw coal with a moisture content of 15.18-20.11% and dry coal with no moisture. The experimental data showed that the CO2 adsorption capacity in dry coal was 1.6-1.8 times greater than that in raw coal. A fitting graph between the adsorption data and the isotherm model indicated that CO2 adsorption on coal occurred on monolayers and multilayers under raw and dry conditions. Statistical evaluation of the adsorption isotherm models showed that the Langmuir and Freundlich models aligned more closely to the experimental data. According to this result, low-pressure adsorption of CO2 on coal occurred in monolayers and multilayers under raw and dry conditions. Coal containing a high huminite content had a higher potential for CO2 adsorption, and the drying increased the positive relationship. On the other hand, coal containing high inertinite content inhibited CO2 adsorption onto the coal, but the drying process did not adversely affect CO2 adsorption. Furthermore, coal with high moisture and inertinite content inhibited the affinity, accommodation, and spontaneous CO2 adsorption onto the coal. CO2 adsorption could lead to swelling, but moisture loss opened more sites and micropores, resulting in the swelling effect not closing all micropores in dry coal. Based on these results, coal seams with low moisture and inertinite content are the most promising for CO2 adsorption. Altogether, this study provides an understanding of the percentage of inhibitor factors that affects CO2 adsorption on low-rank coal from shallow depths, which may lead to different CO2 adsorption capacities.

    DOI: 10.1021/acsomega.3c04615

    Scopus

    PubMed

  • Experimental measurements of CO<inf>2</inf> adsorption on Indonesian low-rank coals under various conditions

    Tambaria T.N., Sugai Y., Anggara F.

    Journal of Petroleum Exploration and Production Technology   13 ( 3 )   813 - 826   2023.3   ISSN:21900558

     More details

    Publisher:Journal of Petroleum Exploration and Production Technology  

    In this study, the CO2 adsorption capacity was measured on Indonesian low-rank coals in the raw and dry conditions in powder and block states using different coal sample preparation to estimate CO2 sequestration and storage potential. Coal sample specimens were taken from three different areas in the South Sumatra Basin, Indonesia. The adsorption experiments were performed using the volumetric method at a temperature of 318.15 K and pressure up to 3 MPa. The CO2 excess adsorption capacity of powder coal is always higher than block coal. Moreover, decreasing moisture content by the drying process increases CO2 adsorption capacity on coal. Based on fitted CO2 adsorption experimental data with the Langmuir and Freundlich isotherm model, the adsorption occurs on monolayer and multilayer at various conditions. Langmuir volume capacity and pressure show drying and crushing process increased adsorption capacity. However, the drying process affects more the capability of coal to adsorb CO2 than the powdered sample, especially in low-rank coal. It was also observed adsorption capacity is directly proportional to huminite content in the coal. Due to lower moisture and higher huminite contents, the dried WB coal powder had the highest CO2 adsorption capacity over the other coal samples in similar sample conditions. Altogether, this study may provide a better understanding in CO2 adsorption on low-rank coal with different coal sample preparation resulting in different CO2 adsorption capacity.

    DOI: 10.1007/s13202-022-01569-z

    Scopus

  • Preliminary Investigation on Impacts of Temperature, Pressure, Viscosity, and Solubility on Expansion of CO<inf>2</inf>-Based Foamy Bitumen

    Meakh S., Sugai Y., Esaki T., Tambaria T.N.

    Society of Petroleum Engineers - Asia Pacific Unconventional Resources Symposium, APUR 2023   2023   ISBN:9781959025146

     More details

    Publisher:Society of Petroleum Engineers - Asia Pacific Unconventional Resources Symposium, APUR 2023  

    The current thermal recovery processes of bitumen consume tremendous amounts of water and energy and even emit greenhouse gases (GHGs). As a solution, this study proposes a cold bitumen recovery that adapts the CO2 huff-n-puff process combined with horizontal wells and gravity drainage on the premise that CO2 gas is more soluble in bitumen at lower temperatures. This process generates CO2 -based foamy bitumen, introduces swelling phenomenon in the huff stage due to CO2 dissolution in the bitumen phase, and provides foam expansion in the puff stage because of CO2 liberation. Due to pressure differences, gravity, and foam expansion, foamy bitumen is drained into the production well. Therefore, the current study aims to evaluate the potential of this method after the impacts of important parameters on the foam expansion such as temperature, pressure, viscosity, and solubility are investigated. The studied conditions are 2, 3, and 4 MPa of CO2 injection pressure under temperatures of 25, 35, 45, and 55 °C. The results from the adapted CO2 huff-n-puff experiment show that the solubility of CO2 in bitumen increases at higher injecting pressures and lower temperatures. The highest expansion factors which are about 9 were obtained at the highest injecting pressure at 25 and 35 °C followed by the expansion from 3 MPa injecting pressure at 45 and 55 °C. The third place is shared by the injecting pressure of 3 MPa at 25 and 35 °C and injecting pressure of 4 MPa at 45 and 55 °C. The lowest expansion factor was obtained at the lowest injecting pressure at the highest temperature. These peculiar results indicate that temperature, pressure, viscosity, and solubility possess unique roles and strongly influence each other in a certain manner that can either benefit or hinder the foam expansion. It also depicts that with a harmonious and optimal combination of all these parameters, a high expansion of CO2 -based foamy bitumen is achievable. Besides, the current highest expansion factor of this study proves that this cold production is theoretically capable of driving bitumen out of the pore spaces even without the assistance of gravity drainage or any form of heating.

    DOI: 10.2118/217325-MS

    Scopus

  • Adsorption Factors in Enhanced Coal Bed Methane Recovery: A Review

    Theodora Noely Tambaria, Sugai Yuichi, Nguele Ronald

    Gases   2 ( 1 )   1 - 21   2022.1   eISSN:26735628

     More details

    Language:English  

    Enhanced coal bed methane recovery using gas injection can provide increased methane extraction depending on the characteristics of the coal and the gas that is used. Accurate prediction of the extent of gas adsorption by coal are therefore important. Both experimental methods and modeling have been used to assess gas adsorption and its effects, including volumetric and gravimetric techniques, as well as the Ono–Kondo model and other numerical simulations. Thermodynamic parameters may be used to model adsorption on coal surfaces while adsorption isotherms can be used to predict adsorption on coal pores. In addition, density functional theory and grand canonical Monte Carlo methods may be employed. Complementary analytical techniques include Fourier transform infrared, Raman spectroscopy, XR diffraction, and C^^<13> nuclear magnetic resonance spectroscopy. This review summarizes the cutting-edge research concerning the adsorption of CO_2, N_2, or mixture gas onto coal surfaces and into coal pores based on both experimental studies and simulations.

    CiNii Research