Carboxymethylcellulose sodium salt – effective “green” regent for management of calcium carbonate crystallization and nat-ural gas hydrate formation

Fakhreeva, A. V.; Волошин, А. И.; Musin, Fanil; Телин, А. Г.; Докичев, В. А.

doi:10.1088/1757-899x/525/1/012050

Cited by 8 publications

(4 citation statements)

References 13 publications

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“…The products of CMC are promising KHIs due to their excellent properties. However, there are relatively few reports in the open literature about the inhibition performance of CMC on gas hydrates or the related inhibition mechanism. − …”

Section: Introductionmentioning

confidence: 99%

Kinetic Inhibition of CO₂ Hydrate by Carboxymethylcellulose Sodium through Retarded Mass Transfer

et al. 2021

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The influence of carboxymethylcellulose sodium (CMC-Na) on the formation kinetics of carbon dioxide (CO2) hydrate was investigated by adopting an isothermal and isochoric method. The mass transfer characteristics of CO2 in the solution of CMC-Na were also investigated. Pure water and polyvinylpyrrolidone (PVP) of different molecular weights were used for comparison. Several parameters, such as the concentration of the additives, the stirring condition, and the temperature, were investigated. The experimental results showed that all the additives had almost no inhibition effects on the nucleation of hydrates when the experimental temperature was 273.25 K and the initial pressure was 3.5 MPa. In contrast, PVP could effectively slow the growth rate of CO2 hydrate, while CMC-Na could greatly decrease the ultimate amount of the formed hydrate. The inhibition effects of CMC-Na decreased with the decrease of its concentration and totally lost its inhibition effects at the concentration of 0.1 wt % or lower. Under a stirring condition, carbon dioxide hydrate grew faster than that under a static condition. Temperature had nearly no influence on the mass transfer of CO2 in the solution, and the mass transfer rate of CO2 in the CMC-Na solution was the slowest among all the samples studied. The formation of hydrate mainly took place at the gas/solution interface. Adsorption and interference to crystal growth were supposed to be the mechanism by which PVP molecules inhibited the growth of the hydrate crystal, while mass transfer resistance was supposed to play a key role in the inhibition of CMC-Na. The experimental results could provide some theoretical guidance for the development of a new type of kinetic hydrate inhibitors and the prevention of hydrate.

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Section: Introductionmentioning

confidence: 99%

Kinetic Inhibition of CO₂ Hydrate by Carboxymethylcellulose Sodium through Retarded Mass Transfer

et al. 2021

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“…In developing new “green” inhibitors of gas hydrate formation, Voloshin A.I. et al [ 62 , 63 , 124 , 125 , 126 ] studied the comparative ability of a number of available biodegradable polysaccharide polymers, sodium, and ethanolammonium salts of carboxymethylcellulose, dextran, and arabinogalactan to inhibit gas hydrate formation under the conditions of a quasi-equilibrium thermodynamic experiment under isothermal conditions (24.5 °C). Carboxymethylcellulose (Na-CMC) is a chemical modification product of linear cellulose, and dextran is a 3,6-branched natural polysaccharide.…”

Section: Polysaccharides Are Promising “Green” Inhibitors Of Gas Hydr...mentioning

confidence: 99%

Polysaccharides Are Effective Inhibitors of Natural Gas Hydrate Formation

et al. 2023

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This review covers the types and applications of chemical inhibitors of gas hydrate formation in the oil and gas industry. The main directions of the development of new types of highly effective and environmentally safe “green” kinetic hydrate inhibitors (KHIs) based on biopolymers are analyzed. The structure, physicochemical properties, efficiency of gas hydrate formation inhibition, and commercial prospects of polysaccharides in preventing and controlling the formation of gas hydrates are considered. The criteria for their selection, current experimental data, and the mechanism of inhibition are presented. Recent research in the development of cost-effective, efficient, and biodegradable KHIs for industrial applications in the oil and gas industry is also presented.

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“…Одним из перспективных направлений в этом плане является разработка реагентов на основе природных соединений -полисахаридов, физико-химические свойства которых, а также биоразлагаемость предопределяют разработку на их основе «зеленых» кинетических ингибиторов газогидратообразования малой концентрации [208][209][210][211][212].…”

Section: «зеленые» ингибиторы газогидратообразованияunclassified

Renewable Natural Raw Materials. Structure, Properties, Application Prospects

2021

Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol.

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The review considers the current ideas of a relatively new field of "green chemistry" in the field of chemical processing of renewable natural plant raw materials. For a number of processes, the ways, methods and some technological aspects of obtaining new compounds and reagent systems, biodegradable compositions and "green chemistry" products that are in demand in various sectors of the economy, industry and life support of society are shown. The article presents the results of the analysis of Russian and world reserves of forest resources according to authoritative modern sources and proposals for their conservation and restora-tion. The problems of biorefiling of plant raw materials are described, one of which is the val-orization of lignin-the aromatic component of the chemical composition of wood. It is pro-posed to obtain biodegradable systems and compositions based on the by-product of wood processing lignosulfonate of a neutral production method characterized by a high content of polysaccharides in the hemicellulose of the carbohydrate part of wood after the separation of cellulose. The ways of using modified cellulose products as inhibitors of salt deposition and gas hydrate formation, and the areas of their application in oilfield chemistry are shown. Lig-nin and other components of plant resources have long been the basis of various classes of fi-bers of natural origin, including plant and animal origin, artificial fibers. In the sector of cre-ating materials with new properties that have a wide range of practical applications, the review describes the production of PLA polylactide synthesized from lactic acid as a modern alterna-tive to many synthetic polymers obtained from refined petroleum products. For the products of the interaction of ammonium lactate and N-butyl alcohol, a kinetic model for the production of butyl lactate, an intermediate product of green chemistry, is described. The results of the study of a specific class of compounds – ionic liquids – traditionally considered as so-called "green solvents" are presented. An approach to the creation of a mathematical model by calculating the adsorption characteristics for evaluating the effectiveness of systems and composites based on biodegradable polymers in the direction of "green chemistry" is proposed.

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Carboxymethylcellulose sodium salt – effective “green” regent for management of calcium carbonate crystallization and nat-ural gas hydrate formation

Cited by 8 publications

References 13 publications

Kinetic Inhibition of CO₂ Hydrate by Carboxymethylcellulose Sodium through Retarded Mass Transfer

Kinetic Inhibition of CO₂ Hydrate by Carboxymethylcellulose Sodium through Retarded Mass Transfer

Polysaccharides Are Effective Inhibitors of Natural Gas Hydrate Formation

Renewable Natural Raw Materials. Structure, Properties, Application Prospects

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Carboxymethylcellulose sodium salt – effective “green” regent for management of calcium carbonate crystallization and nat-ural gas hydrate formation

Cited by 8 publications

References 13 publications

Kinetic Inhibition of CO2 Hydrate by Carboxymethylcellulose Sodium through Retarded Mass Transfer

Kinetic Inhibition of CO2 Hydrate by Carboxymethylcellulose Sodium through Retarded Mass Transfer

Polysaccharides Are Effective Inhibitors of Natural Gas Hydrate Formation

Renewable Natural Raw Materials. Structure, Properties, Application Prospects

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Product

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Kinetic Inhibition of CO₂ Hydrate by Carboxymethylcellulose Sodium through Retarded Mass Transfer

Kinetic Inhibition of CO₂ Hydrate by Carboxymethylcellulose Sodium through Retarded Mass Transfer