High pressure rheometer for in situ formation and characterization of methane hydrates.
We present a novel setup for a high pressure rheometer operating with concentric cylinders geometry for in situ studies of hydrate formation and rheological characterization. The apparatus uses an external high pressure mixing cell to saturate water-in-oil emulsions with methane gas. The capability of mixing combined with a true rheometer design make this apparatus unique in terms of setup and sample formation. We have used the apparatus to form gas hydrates in situ from water-in-oil emulsions and characterize suspension rheological properties such as yield stress and shear-thinning behavior.
Center for Hydrate Research, Chemical and Biological Engineering Department, Colorado School of Mines, Golden, Colorado 80401, USA.
Eric B
EB
Webb
Patrick J
PJ
Rensing
Carolyn A
CA
Koh
E Dendy
ED
Sloan
Amadeu K
AK
Sum
Matthew W
MW
Liberatore