Hydrolysis losses in the hydrate desalination process: rate measurements and economic analysis

Colten, S.L.; Lin, Fangjia; Tsao, Tzeta; Stern, S. A.; Barduhn, Allen J.

doi:10.1016/s0011-9164(00)84047-3

Cited by 17 publications

(7 citation statements)

References 7 publications

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“…As a matter of fact, gas hydrates-based desalination has been investigated for decades [10,12,[29][30][31][32][33][34][35][36][37][38]. Despite that, hydrate-based technology is not used nowadays in desalination plants.…”

Section: Introductionmentioning

confidence: 99%

Cyclopentane hydrates – A candidate for desalination?

Ho-Van

Bouillot

Douzet

et al. 2019

Journal of Environmental Chemical Engineering

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This article presents a systematic review on the past developments of Hydrate-Based Desalination process using Cyclopentane as hydrate guest. This is the first review that covers all required fundamental data, such as multiphase equilibria data, kinetics, morphology, or physical properties of cyclopentane hydrates, in order to develop an effective and sustainable desalination process. Furthermore, this state-of-the-art describes research and commercialization perspectives. When compared to traditional applications, cyclopentane hydrate-based desalination process could be a promising solution. Indeed, it operates under normal atmospheric pressure, lower operation energies are required, etc… However, there are some challenges yet to overcome. A decision aid in the form of a diagram is proposed for a new cyclopentane hydrates-based desalination process. Hopefully, concepts reviewed in this study will suggest new ideas to advance technical solutions in order to make commercial hydrate-based desalination processes a reality.

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Section: Introductionmentioning

confidence: 99%

Cyclopentane hydrates – A candidate for desalination?

Ho-Van

Bouillot

Douzet

et al. 2019

Journal of Environmental Chemical Engineering

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“…Thus, it appears that a wide range of solid mineral surfaces, including "typical" aquifer materials, have no significant influence on hydrolytic reactions of chlorinated hydrocarbons. These results are an interesting and somewhat unexpected contrast to the known abiotic reductions of halogenated hydrocarbons by high organic content sediments [8] and the observed heterogeneous catalytic decomposition of freons on metallic copper [14][15][16] and chlorinated hydrocarbons [17,18] on metallic iron.…”

Section: Discussionmentioning

confidence: 84%

Halocarbon hydrolysis rates ‐ a search for ionic strength and heterogeneous effects

Jeffers

Coty

Luczak

et al. 1994

Journal of Environmental Science and Health . Part A: Environme

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Ten chlorinated or fluorinated alkanes and alkenes were hydrolyzed in deionized aqueous solution, in "sea water", or in the presence of 11 different crushed solid minerals including sulfides, oxides, hydroxides, and aquifer materials. No changes in the observed hydrolysis rates were found upon changing from a pure water environment to one of high ionic strength or of significant potential heterogeneous catalytic activity for these typical halogenated hydrocarbons. Successive partial substitution of fluorine for chlorine in the ethanes was shown to retard hydrolysis by one to five orders of magnitude.

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“…In attempting to understand the very low hydrolysis loss rates, we recognize that several of these fluorinated compounds form stable hydrates, indicating very strong hydrogen-bonded networks. Barduhn and coworkers' studies of freon hydrolysis were predicated on evaluation of these materials for use in saline water reclamation by hydrate cycling processes [3][4][5]. In preparing solutions of CHCl 2 F, we made the fascinating observation that, when several drops of the chilled halocarbon were added to 10 ml of 5ЊC water, the system formed a slush that persisted in the refrigerator at over 4ЊC during storage, although the compound boils at 8.9ЊC.…”

Section: Resultsmentioning

confidence: 99%

Homogeneous Hydrolysis Rate Constants—part Ii: Additions, Corrections and Halogen Effects

Jeffers¹,

Wolfe²

1996

Environ Toxicol Chem

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Neutral and alkaline rate constants were measured for 14 halogenated hydrocarbons, and new or revised rate constants were determined for hexachloroethane, trichloroethene, and 1,2-dichloroethane. These results include the effects of F or Br substitution for Cl in halogenated methanes, ethanes, and ethenes. The brominated ethanes and ethenes are more reactive than the corresponding chlorinated compounds, due to lower activation energies and higher activation entropies. Fluorine substitution increases the activation energy for some of the ethanes and greatly decreases reactivity for most of the compounds studied. However, fluorodichloromethane is about as reactive as chloroform. Complex reactions were observed in alkaline solutions of vinyl chloride and 1,2-dichlorotrifluoroethane.

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Hydrolysis losses in the hydrate desalination process: rate measurements and economic analysis

Cited by 17 publications

References 7 publications

Cyclopentane hydrates – A candidate for desalination?

Cyclopentane hydrates – A candidate for desalination?

Halocarbon hydrolysis rates ‐ a search for ionic strength and heterogeneous effects

Homogeneous Hydrolysis Rate Constants—part Ii: Additions, Corrections and Halogen Effects

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