The influence of the chloride-calcium-type water composition on the properties of natural gas hydrates

Калачева, Л. П.; Рожин, И. И.

doi:10.17353/2070-5379/25_2017

Cited by 3 publications

(2 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Aquamarine hydrates are in equilibrium with sea water, the main component of which is sodium chloride. In papers [44,45], objects of the study are hydrates of natural gas synthesized in solutions of sodium and calcium chlorides. Concentrations of sodium chloride solutions are 5, 10 and 15 %, which corresponds to a total mineralization of brines of 51.8; 107.1, and 166.3 g/l.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Effect of mechanoactivated chemical additives on the process of gas hydrate formation

Bondarenko

Svietkina

Sai

2018

EEJET

View full text Add to dashboard Cite

Досліджено вплив механохімічно активованих домішок на процес утворення газових гідратів метану. Встановлено, що процес утворення газогідратів метану у присутності активованих алюмосилікатів відбувається не по автокаталітичному характеру. Виявлено, що у складі газового гідрату метану з'являється етан. Визначено константи швидкості утворення газогідратів метану при Т=274 K і тиску 5 МПа у присутності механоактивованих домішок Ключові слова: газогідрати метану, механоактивація, гетерогенний каталіз, швидкість гідратоутворення, дисоціація, алюмосилікати, фазові перетворення Исследовано влияние механохимически активированных добавок на процесс образования газовых гидратов метана. Установлено, что процесс образования газогидратов метана в присутствии активированных алюмосиликатов происходит не по автокаталитическому характеру. Обнаружено, что в составе газового гидрата метана появляется этан. Определены константы скорости образования газогидрата метана при Т=274 K и давлении 5 МПа в присутствии механоактивированных добавок Ключевые слова: газогидраты метана, механоактивация, гетерогенный катализ, скорость гидратообразования, диссоциация, алюмосиликаты, фазовые превращения

show abstract

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Effect of mechanoactivated chemical additives on the process of gas hydrate formation

Bondarenko

Svietkina

Sai

2018

EEJET

View full text Add to dashboard Cite

show abstract

“…In works of [24,25], the natural gas hydrates synthesized in sodium and calcium chlorides solutions were the objects of the study. The concentrations of sodium chloride solutions were 5, 10 and 15%, which corresponds to the total mineralization of salt brines 51.8; 107.1 and 166.3 grams per litre.…”

Section: Literature Data Analysis and Formulation Of The Problemmentioning

confidence: 99%

Investigation of the influence of polyelectrolytes hydrodynamic properties on the hydrateformation process

et al. 2018

View full text Add to dashboard Cite

One of the most perspective non-traditional sources of hydrocarbon raw materials and energy is gas hydrates (GH), which stimulates their large-scale study in many laboratories and scientific centers around the world. The interest in the GH is related to the possibility of their industrial application. The use of technologies for storage and transportation of natural gas in the form of GH requires fundamental kinetic studies of the hydration process at atmospheric pressure in the presence of chemical impurities (catalysts, surfactants, etc.). During the research, an increase in the rate of gas hydrates formation was discovered at the expense of activated impurities and composite compounds obtained on their basis, which lead to changes in the hydrochemical and hydrodynamical modes of systems. It was established that the process of GH formation occurs due to the binding of methane macromolecules and other chemical impurities, which contribute to increase the number of moles of gaseous methane, due to the flow of exchange processes between the polymer matrix and water soluble salts, as well as a result of the change in the hydrodynamics of the water system. The purpose of this work is to investigate the effect of polyelectrolytes solutions hydrodynamic properties on the GH formation. We used a number of ionenes based on polymeric quaternary ammonium salts, side aliphatic radicals of different lengths contained in the acyl fragment.

show abstract

Methane gas hydrates influence on sudden coal and gas outbursts during underground mining of coal deposits

et al. 2020

View full text Add to dashboard Cite

The mechanism of gas hydrates formation in coal seams is studied in the paper, as well as their involvement is hypothesized in the sudden outbursts of coal and gas during underground mining of coal deposits. It has been substantiated and proved that one of the real reasons for subsequent outbursts is the formation of gas hydrates in coal as a type of secondary gas hydrate deposits. It has been also substantiated that, as a result of coal metamorphism, a large amount of gaseous hydrocarbons, mainly methane, is formed in the seam, which under certain thermobaric conditions leads to the gas hydrates formation. It has been experimentally proved that the mechanism of such inclusions formation between gas hydrate and coal is a result of strong chemisorption, which, when disturbing thermobaric conditions, leads to gas-dynamic activity of coal seams. It has been revealed that during the dissociation of gas hydrates, obtained in a medium of activated coals, twice as much gaseous methane is released. The research analysis indicates that the formation of natural gas solid solutions in coal pores under certain thermodynamic conditions and the natural humidity, characteristic of coal seams, is one of the causes of sudden coal and gas outbursts. The gas hydrates dissociation influences on the gas-dynamic activity of a coal seam and the formation of an outburst hazardous situation.

show abstract

The influence of the chloride-calcium-type water composition on the properties of natural gas hydrates

Cited by 3 publications

References 1 publication

Effect of mechanoactivated chemical additives on the process of gas hydrate formation

Effect of mechanoactivated chemical additives on the process of gas hydrate formation

Investigation of the influence of polyelectrolytes hydrodynamic properties on the hydrateformation process

Methane gas hydrates influence on sudden coal and gas outbursts during underground mining of coal deposits

Contact Info

Product

Resources

About