Marques DC, Lange Bassani C, Kakitani C, Marcelino Neto MA, Sum AK, Morales RE (2022)
Publication Type: Journal article
Publication year: 2022
Book Volume: 61
Pages Range: 2333-2345
Journal Issue: 5
Measurements of gas hydrate deposition under sheared conditions are reported in this study. In Part I of this series, experiments with a 100% water cut (gas-water-hydrate systems, without oil) are analyzed. A total of 35 experiments are presented for methane hydrates (sI structure) and for a gas mixture composed of 74.7 mol % methane and 25.3 mol % ethane (sII structure) for subcooling ranging from 1.3 to 11.9 °C, liquid loadings from 20 to 60 vol %, and oscillation rates from 6 to 18.75 rpm. Visual observation of the macromorphology of the systems, before and after the onset of gas hydrate formation, is made possible by polycarbonate windows that resist the imposed pressure. Results point out that wall deposition occurs within the first hour after the onset of hydrate formation for the measured conditions. The location of the wall deposits─in the lateral or upper walls, enduring gravity─is mapped in terms of the hydrodynamics of water and its ability to reach the different walls of the cell. Quantitative results for the molar amount of gas consumed during hydrate formation are presented, and mathematical insights are given into how growth kinetics change once the system undergoes wall deposition in the 1 h-timescale, as well as deposit hardening (annealing) in longer timescales.
APA:
Marques, D.C., Lange Bassani, C., Kakitani, C., Marcelino Neto, M.A., Sum, A.K., & Morales, R.E. (2022). Mapping Wall Deposition Trends of Gas Hydrates: I. Gas-Water-Hydrate Systems. Industrial & Engineering Chemistry Research, 61(5), 2333-2345. https://dx.doi.org/10.1021/acs.iecr.1c04723
MLA:
Marques, Daniela C., et al. "Mapping Wall Deposition Trends of Gas Hydrates: I. Gas-Water-Hydrate Systems." Industrial & Engineering Chemistry Research 61.5 (2022): 2333-2345.
BibTeX: Download