Open AccessINFLUENCE OF THE TIME STORAGE OF ICE POWDER ON KINETICS OF FORMATION AND GROWTH OF FREON-12 GAS HYDRATE
Author(s) -
М. Ш. Мадыгулов,
A. G. Zavodovsky,
V. P. Shchipanov
Publication year - 2018
Publication title -
izvestiâ vysših učebnyh zavedenij. neftʹ i gaz
Language(s) - English
Resource type - Journals
ISSN - 0445-0108
DOI - 10.31660/0445-0108-2018-2-77-83
Subject(s) - polyvinylpyrrolidone , clathrate hydrate , hydrate , ice crystals , materials science , freon , chemical engineering , kinetics , chemistry , ice formation , mineralogy , polymer chemistry , organic chemistry , geology , meteorology , physics , atmospheric sciences , quantum mechanics , engineering
The article explores the influence a storage time on the samples of pure ice powder and mod-ified ice powder with polyvinylpyrrolidone on process formation and growth of the gas hydrate by used P-V-T measurements. It has been established that increased storage time of the pure ice powder leads to a decrease the rate of growth of gas hydrate. Fresh modified ice powder has induction time of hydrate formation which increased in a polyvinylpyrrolidone concentration. At long-term storage of modified ice powder with a polyvinylpyrrolidone concentration less 0,3 % the induction time don’t registrate and growth rate of gas hydrate likes zero. In the samples of modified ice powder with a polyvinylpyrrolidone concentration more 0,75 % after 10 days a storage were retained growth rate of gas hydrate likes fresh modified ice powder. There is no induction effect.