HNEI researchers conducted an exploratory study for DARPA to develop a conceptual design for a seafloor electricity generation system to provide ~100W to recharge AUVs or to power bottom-moored instruments. A system was proposed based on PEM fuel cells that utilized reformed methane from seeps or hydrate outcroppings and stored oxidizer, in the form of H2O2.
HNEI played a leading role in an international collaboration between the Governments of Japan, U.S., Norway, Canada, and Australia, and private sector partners, to conduct a field experiment to investigate sequestration of anthropogenic carbon dioxide in the deep ocean. The agreement for the field experiment was signed as an adjunct to the 1997 Third Session of the Conference of the Parties held in Kyoto, Japan. Over the next five years, a team of scientists and engineers worked together to design the experiment, fabricate the test facilities, and secure necessary permits. The experiment
HNEI researchers are investigating the thermochemistry and kinetics of hydrate formation and dissociation to provide information needed to address engineering challenges associated with methane recovery from hydrates, flow assurance in pipelines, and hydrate energy storage and transport. Microbiological and modeling studies also are conducted to understand the microbial processes that produce and consume methane in the deep ocean environment and the movement of methane and other hydrocarbons in the oceanic water column.
In 1999, the Minerals Management Service of the U.S.