F103 EFFECTS OF ADDITIVE SOLUTIONS ON GAS HYDRATE FORMATION(Energy Storage and Load Leveling)

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概要

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• The hydrate formation from additive solutions is proposed in this paper. Three kinds of additives were used. They are polyoxyethlene lauryl ether (POELE), one of nonionic surfactants, cyclodextrin (CD), and antifreeze proteins (AFPs). By using surfactant solutions, the induction times of methane hydrates (MH) have been shorten by about 50 percent, comparing with the time without the surfactants. By the experiments of the present study, for shortening the induction times from the surfactant solutions, the weight percents of the surfactant at greater than 0.05 weight percent (wt) are recommended. By using several kinds of the CDs, the induction times have been shorter by about 20 times. It is suggested that the additives promote the reaction of the methane and water molecules. By the present experiments, the induction times of the MH production are dependent on the concentration of Hyper-beta-CD. The AFPs are proteins that are in the body fluids of some polar fishes or insects. The proteins are adsorbed to the surfaces of an ice crystal and inhibit the ice crystal growth. There are four types of AFPs which differ according to molecular structures. One of the purposes of this study is to develop a thermal system for CO_2 storage and mixed gas separation by CO_2 hydrates. To extend a continuous production time further, the AFPs were used and are kept the hydrate particles small and well dispersed. In this paper, the production process and thermal properties of CO2 hydrates added the AFPs are discussed.

• 一般社団法人日本機械学会の論文
• 2009-11-16

著者

• MURAKAMI Kazuhiko

  Division of Mechanical Engineering, Tokyo Metropolitan University

• OTA Masahiro

  Division of Mechanical Engineering, Tokyo Metropolitan University

• Ota Masahiro

  Division Of Mechanical Engineering Tokyo Metropolitan University

• Qi Yingxia

  University Of Shanghai For Science And Technology

• Ferdows Mohhamad

  University Of Dhaka Bangladesh

• Murakami Kazuhiko

  Division Of Mechanical Engineering Tokyo Metropolitan University

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• F103 EFFECTS OF ADDITIVE SOLUTIONS ON GAS HYDRATE FORMATION(Energy Storage and Load Leveling)
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