The effect of some hydrocarbon liquids on methane hydrate nucleation
Master's thesis in Petroleum engineering The effect of some liquid hydrocarbon components on the nucleation process of methane clathrate hydrate has been investigated during isochoric, constant temperature nucleation experiments. The detected nucleation times were analyzed statistically and the...
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University of Stavanger, Norway
2012
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ftunivstavanger:oai:uis.brage.unit.no:11250/183482 2023-06-11T04:14:01+02:00 The effect of some hydrocarbon liquids on methane hydrate nucleation Palm, Magnus 2012 application/pdf http://hdl.handle.net/11250/183482 eng eng University of Stavanger, Norway Masteroppgave/UIS-TN-IPT/2012; http://hdl.handle.net/11250/183482 petroleumsteknologi produksjonsteknologi clathrate hydrates nucleation methane Arrhenius plot surface tension alkanes VDP::Technology: 500::Rock and petroleum disciplines: 510::Petroleum engineering: 512 Master thesis 2012 ftunivstavanger 2023-05-29T16:04:00Z Master's thesis in Petroleum engineering The effect of some liquid hydrocarbon components on the nucleation process of methane clathrate hydrate has been investigated during isochoric, constant temperature nucleation experiments. The detected nucleation times were analyzed statistically and the key properties of nucleations were estimated through regression Most of the investigated components had a delaying effect on the nucleation, but with little difference between the components. This was the case for iso-pentane, n-hexane, n-octane, pentyl-benzene and n-dodecane. n-pentane showed virtually no effect, while cyclohexane had a nucleation propagating effect, though this may be because it can form a different hydrate structure (sII). Melting point tests indicated the formation of both sII and sI in the system when cyclo-hexane was present. The experimental results showed generally low reliability and it was concluded that this was because of the highly stochastic nature of the investigated phenomenon combined with statistical analysis on too little data. A novel method of detecting hydrate formation was used: a small but distinct pressure pulse was the first sign of hydrate formation, and this was successfully utilized to identify the time of hydrate formation in all the experiments. The activation energy of stable hydrate nuclei formation was successfully calculated using the Arrhenius plot method, and this could be used to calculate the critical radius of 31,8 Å. Master Thesis Methane hydrate University of Stavanger: UiS Brage |
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University of Stavanger: UiS Brage |
op_collection_id |
ftunivstavanger |
language |
English |
topic |
petroleumsteknologi produksjonsteknologi clathrate hydrates nucleation methane Arrhenius plot surface tension alkanes VDP::Technology: 500::Rock and petroleum disciplines: 510::Petroleum engineering: 512 |
spellingShingle |
petroleumsteknologi produksjonsteknologi clathrate hydrates nucleation methane Arrhenius plot surface tension alkanes VDP::Technology: 500::Rock and petroleum disciplines: 510::Petroleum engineering: 512 Palm, Magnus The effect of some hydrocarbon liquids on methane hydrate nucleation |
topic_facet |
petroleumsteknologi produksjonsteknologi clathrate hydrates nucleation methane Arrhenius plot surface tension alkanes VDP::Technology: 500::Rock and petroleum disciplines: 510::Petroleum engineering: 512 |
description |
Master's thesis in Petroleum engineering The effect of some liquid hydrocarbon components on the nucleation process of methane clathrate hydrate has been investigated during isochoric, constant temperature nucleation experiments. The detected nucleation times were analyzed statistically and the key properties of nucleations were estimated through regression Most of the investigated components had a delaying effect on the nucleation, but with little difference between the components. This was the case for iso-pentane, n-hexane, n-octane, pentyl-benzene and n-dodecane. n-pentane showed virtually no effect, while cyclohexane had a nucleation propagating effect, though this may be because it can form a different hydrate structure (sII). Melting point tests indicated the formation of both sII and sI in the system when cyclo-hexane was present. The experimental results showed generally low reliability and it was concluded that this was because of the highly stochastic nature of the investigated phenomenon combined with statistical analysis on too little data. A novel method of detecting hydrate formation was used: a small but distinct pressure pulse was the first sign of hydrate formation, and this was successfully utilized to identify the time of hydrate formation in all the experiments. The activation energy of stable hydrate nuclei formation was successfully calculated using the Arrhenius plot method, and this could be used to calculate the critical radius of 31,8 Å. |
format |
Master Thesis |
author |
Palm, Magnus |
author_facet |
Palm, Magnus |
author_sort |
Palm, Magnus |
title |
The effect of some hydrocarbon liquids on methane hydrate nucleation |
title_short |
The effect of some hydrocarbon liquids on methane hydrate nucleation |
title_full |
The effect of some hydrocarbon liquids on methane hydrate nucleation |
title_fullStr |
The effect of some hydrocarbon liquids on methane hydrate nucleation |
title_full_unstemmed |
The effect of some hydrocarbon liquids on methane hydrate nucleation |
title_sort |
effect of some hydrocarbon liquids on methane hydrate nucleation |
publisher |
University of Stavanger, Norway |
publishDate |
2012 |
url |
http://hdl.handle.net/11250/183482 |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_relation |
Masteroppgave/UIS-TN-IPT/2012; http://hdl.handle.net/11250/183482 |
_version_ |
1768391519029428224 |