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Hydrate formation using water spraying onto a cooled solid surface in a guest gas
Author(s) -
Matsuda Sadatoshi,
Tsuda Hidehiko,
Mori Yasuhiko H.
Publication year - 2006
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.10890
Subject(s) - subcooling , clathrate hydrate , hydrate , chemistry , metal , natural gas , chemical engineering , thermodynamics , materials science , boiling , organic chemistry , physics , engineering
Abstract An experimental study has been performed involving water spraying onto a cooled metal‐block surface exposed to a hydrate‐forming gas as a means of high‐rate hydrate formation for the purpose of, for example, natural‐gas storage. Special attention has been paid to the effectiveness of conductive cooling through the metal block for directly removing the heat released by the hydrate formation from its site, that is, the surface of the metal block, and, thereby, increasing the rate of hydrate formation. HFC‐32 (CH 2 F 2 ) that forms a structure‐I hydrate at moderate pressures was used as a model gas to enable visual observations of the hydrate formation inside a large‐windowed spray chamber. The experiments revealed that the cooling by the metal block effectively increases the rate of hydrate formation while water is sprayed at a given volumetric rate and at a given degree of subcooling from the guest‐gas/water/hydrate equilibrium temperature. © 2006 American Institute of Chemical Engineers AIChE J, 2006