KFU. Card publication. Dual Promotion-Inhibition Effects of Novel Ethylenediaminetetraacetic Acid Bisamides on Methane Hydrate Formation for Gas Storage and Flow Assurance Applications

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DUAL PROMOTION-INHIBITION EFFECTS OF NOVEL ETHYLENEDIAMINETETRAACETIC ACID BISAMIDES ON METHANE HYDRATE FORMATION FOR GAS STORAGE AND FLOW ASSURANCE APPLICATIONS

Form of presentation

Articles in international journals and collections

Year of publication

2021

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Authors, employees of KFU

Varfolomeev Mikhail Alekseevich, author

Pavelev Roman Sergeevich, author

Semenov Matvey Egorovich, author

Bibliographic description in the original language

Pavelyev R.S, Gainullin S.E, Semenov M.E, Dual Promotion-Inhibition Effects of Novel Ethylenediaminetetraacetic Acid Bisamides on Methane Hydrate Formation for Gas Storage and Flow Assurance Applications//Energy and Fuels. - 2021. - Vol., Is.. - .

Annotation

Surfactants have been reported as the most efficient gas hydrate promoters (GHPs) for gas storage and transportation; however, slow kinetics of nucleation and growth of hydrate crystals and foam formation during hydrate dissociation severely impact their applications. Here, a new class of chemical additives based on ethylenediaminetetraacetic acid bisamides was developed to control methane hydrate formation for gas storage and flow assurance applications. Synthesized molecules contain both polar fragments (carboxyl and amide groups) and hydrophobic alkyl groups with different sizes and branching. The obtained results revealed that bisamides with short alkyl chains (n-propyl and isopropyl) promoted the formation of methane hydrate and significantly reduced foam stability during hydrate decomposition compared to sodium dodecyl sulfate (SDS). Moreover, by increasing the length of the alkyl substituent up to propyl, the nucleation time increased. However, the conversion of gas to hydrate escalated remarkably. A transition from promotion to inhibition properties is observed with a further increase in the alkyl chain from propyl to butyl. Nevertheless, bisamides with hexyl groups showed surfactant properties, which is responsible for their poor promotion efficiency. In addition, the studied compounds practically do not form foam and are less toxic compared to SDS as a well-known GHP. The results of this study can be useful for the design and development of effective additives for gas storage and flow assurance applications.

Keywords

Gas storage, flow assurance, gas hydrate promoter, kinetic hydrate inhibitor, cytotoxicity

The name of the journal

Energy and Fuels

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-85122037375&doi=10.1021%2facs.energyfuels.1c03381&partnerID=40&md5=6ee9e709cfb46f07b8587150053b82f9

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=262583&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Varfolomeev Mikhail Alekseevich	ru_RU
dc.contributor.author	Pavelev Roman Sergeevich	ru_RU
dc.contributor.author	Semenov Matvey Egorovich	ru_RU
dc.date.accessioned	2021-01-01T00:00:00Z	ru_RU
dc.date.available	2021-01-01T00:00:00Z	ru_RU
dc.date.issued	2021	ru_RU
dc.identifier.citation	Pavelyev R.S, Gainullin S.E, Semenov M.E, Dual Promotion-Inhibition Effects of Novel Ethylenediaminetetraacetic Acid Bisamides on Methane Hydrate Formation for Gas Storage and Flow Assurance Applications//Energy and Fuels. - 2021. - Vol., Is.. - .	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=262583&p_lang=2	ru_RU
dc.description.abstract	Energy and Fuels	ru_RU
dc.description.abstract	Surfactants have been reported as the most efficient gas hydrate promoters (GHPs) for gas storage and transportation; however, slow kinetics of nucleation and growth of hydrate crystals and foam formation during hydrate dissociation severely impact their applications. Here, a new class of chemical additives based on ethylenediaminetetraacetic acid bisamides was developed to control methane hydrate formation for gas storage and flow assurance applications. Synthesized molecules contain both polar fragments (carboxyl and amide groups) and hydrophobic alkyl groups with different sizes and branching. The obtained results revealed that bisamides with short alkyl chains (n-propyl and isopropyl) promoted the formation of methane hydrate and significantly reduced foam stability during hydrate decomposition compared to sodium dodecyl sulfate (SDS). Moreover, by increasing the length of the alkyl substituent up to propyl, the nucleation time increased. However, the conversion of gas to hydrate escalated remarkably. A transition from promotion to inhibition properties is observed with a further increase in the alkyl chain from propyl to butyl. Nevertheless, bisamides with hexyl groups showed surfactant properties, which is responsible for their poor promotion efficiency. In addition, the studied compounds practically do not form foam and are less toxic compared to SDS as a well-known GHP. The results of this study can be useful for the design and development of effective additives for gas storage and flow assurance applications.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Gas storage	ru_RU
dc.subject	flow assurance	ru_RU
dc.subject	gas hydrate promoter	ru_RU
dc.subject	kinetic hydrate inhibitor	ru_RU
dc.subject	cytotoxicity	ru_RU
dc.title	Dual Promotion-Inhibition Effects of Novel Ethylenediaminetetraacetic Acid Bisamides on Methane Hydrate Formation for Gas Storage and Flow Assurance Applications	ru_RU
dc.type	Articles in international journals and collections	ru_RU