Laboratory evidence of microbial-sediment-gas hydrate synergistic interactions in ocean sediments

Rudy E. Rogers; Guochang Zhang; Chandrasekhar Rama Kothapalli; William T. French

Laboratory evidence of microbial-sediment-gas hydrate synergistic interactions in ocean sediments

Rudy E. Rogers
, Guochang Zhang
, Chandrasekhar Rama Kothapalli
, William T. French

Chemical and Biomedical Engineering

Dave C. Swalm School of Chemical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

5 Scopus citations

Abstract

Both biogenic and thermogenic gases form seafloor gas hydrates. Prolific microbial activity and bacterial mats near gas hydrate mounds show at least an incidental association of the gas hydrates and microbes. Laboratory data indicates more than an incidental association: a synergistic relationship exists between microbes, sediments, and gas hydrates. Commercially available biosurfactants showed significant catalytic effects on hydrate induction times and formation rates. Since gas hydrate formation is an interfacial phenomenon, interactions of anionic biosurfactants and specific porous media surfaces influence hydrate location and form. Bacillus subtilis microbe identified around Gulf of Mexico hydrates was cultured, surfactant extracted, and effects on laboratory gas hydrates demonstrated interactions. Copyright © 2004 by The International Society of Offshore and Polar Engineers.

Original language	English
Title of host publication	Proceedings of the International Offshore and Polar Engineering Conference
Place of Publication	usa
Pages	41-47
Number of pages	7
State	Published - Dec 1 2004
Event	The Fourteenth International Offshore and Polar Engineering Conference - ISOPE 2004 - , France Duration: May 23 2004 → May 28 2004

Conference

Conference	The Fourteenth International Offshore and Polar Engineering Conference - ISOPE 2004
Country/Territory	France
Period	05/23/04 → 05/28/04

Keywords

Biosurfactants
Gas hydrates
Gas storage
Seafloor hydrates

Cite this

@inproceedings{d7d99c7628734190a383037859424aee,

title = "Laboratory evidence of microbial-sediment-gas hydrate synergistic interactions in ocean sediments",

abstract = "Both biogenic and thermogenic gases form seafloor gas hydrates. Prolific microbial activity and bacterial mats near gas hydrate mounds show at least an incidental association of the gas hydrates and microbes. Laboratory data indicates more than an incidental association: a synergistic relationship exists between microbes, sediments, and gas hydrates. Commercially available biosurfactants showed significant catalytic effects on hydrate induction times and formation rates. Since gas hydrate formation is an interfacial phenomenon, interactions of anionic biosurfactants and specific porous media surfaces influence hydrate location and form. Bacillus subtilis microbe identified around Gulf of Mexico hydrates was cultured, surfactant extracted, and effects on laboratory gas hydrates demonstrated interactions. Copyright {\textcopyright} 2004 by The International Society of Offshore and Polar Engineers.",

keywords = "Biosurfactants, Gas hydrates, Gas storage, Seafloor hydrates",

author = "Rogers, \{Rudy E.\} and Guochang Zhang and Kothapalli, \{Chandrasekhar Rama\} and French, \{William T.\}",

year = "2004",

month = dec,

day = "1",

language = "English",

pages = "41--47",

booktitle = "Proceedings of the International Offshore and Polar Engineering Conference",

note = "The Fourteenth International Offshore and Polar Engineering Conference - ISOPE 2004 ; Conference date: 23-05-2004 Through 28-05-2004",

}

Laboratory evidence of microbial-sediment-gas hydrate synergistic interactions in ocean sediments. / Rogers, Rudy E.; Zhang, Guochang; Kothapalli, Chandrasekhar Rama et al.
Proceedings of the International Offshore and Polar Engineering Conference. usa, 2004. p. 41-47.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Laboratory evidence of microbial-sediment-gas hydrate synergistic interactions in ocean sediments

AU - Rogers, Rudy E.

AU - Zhang, Guochang

AU - Kothapalli, Chandrasekhar Rama

AU - French, William T.

PY - 2004/12/1

Y1 - 2004/12/1

N2 - Both biogenic and thermogenic gases form seafloor gas hydrates. Prolific microbial activity and bacterial mats near gas hydrate mounds show at least an incidental association of the gas hydrates and microbes. Laboratory data indicates more than an incidental association: a synergistic relationship exists between microbes, sediments, and gas hydrates. Commercially available biosurfactants showed significant catalytic effects on hydrate induction times and formation rates. Since gas hydrate formation is an interfacial phenomenon, interactions of anionic biosurfactants and specific porous media surfaces influence hydrate location and form. Bacillus subtilis microbe identified around Gulf of Mexico hydrates was cultured, surfactant extracted, and effects on laboratory gas hydrates demonstrated interactions. Copyright © 2004 by The International Society of Offshore and Polar Engineers.

AB - Both biogenic and thermogenic gases form seafloor gas hydrates. Prolific microbial activity and bacterial mats near gas hydrate mounds show at least an incidental association of the gas hydrates and microbes. Laboratory data indicates more than an incidental association: a synergistic relationship exists between microbes, sediments, and gas hydrates. Commercially available biosurfactants showed significant catalytic effects on hydrate induction times and formation rates. Since gas hydrate formation is an interfacial phenomenon, interactions of anionic biosurfactants and specific porous media surfaces influence hydrate location and form. Bacillus subtilis microbe identified around Gulf of Mexico hydrates was cultured, surfactant extracted, and effects on laboratory gas hydrates demonstrated interactions. Copyright © 2004 by The International Society of Offshore and Polar Engineers.

KW - Biosurfactants

KW - Gas hydrates

KW - Gas storage

KW - Seafloor hydrates

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M3 - Conference contribution

SP - 41

EP - 47

BT - Proceedings of the International Offshore and Polar Engineering Conference

CY - usa

T2 - The Fourteenth International Offshore and Polar Engineering Conference - ISOPE 2004

Y2 - 23 May 2004 through 28 May 2004

ER -

Laboratory evidence of microbial-sediment-gas hydrate synergistic interactions in ocean sediments

Abstract

Conference

Keywords

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Cite this