Synthesis and Evaluation of Two New Kinetic Hydrate Inhibitors
| Autor: | Wang Xiaoqin, Zhen-Feng Sun, Jing-Li Yang, Bei Liu, Guang-Jin Chen, Lanying Yang, Chang-Yu Sun, Huibo Qin |
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| Rok vydání: | 2015 |
| Předmět: |
Steric effects
General Chemical Engineering Clathrate hydrate System pressure Inorganic chemistry technology industry and agriculture Nucleation Energy Engineering and Power Technology macromolecular substances Kinetic energy chemistry.chemical_compound Fuel Technology chemistry Phenyl group Molecule Hydrate Nuclear chemistry |
| Zdroj: | Energy & Fuels. 29:7135-7141 |
| ISSN: | 1520-5029 0887-0624 |
| DOI: | 10.1021/acs.energyfuels.5b01916 |
| Popis: | Two new kinetic hydrate inhibitors (KHIs) named PVP-B and PVP-BP were synthesized successfully and compared with commercial KHIs such as PVP and Inhibex 55W. PVP-B and PVP-BP are both the ramifications of PVP. They were obtained by introducing a t-butyl group and both t-butyl and phenyl groups into PVP molecules, respectively. The hydrate inhibition performances of KHIs were assessed in a sapphire cell through two kinds of onset times of hydrate formation: TVO, the time when hydrate crystals are initially observed by naked eyes, and TPD, the time when rapid and continuous dropping of system pressure begins. TVO was used to evaluate an KHI’s inhibition performance to hydrate nucleation. The length of time period from TVO to TPD was used to evaluate a KHI’s inhibition performance to hydrate growth. The results demonstrate that both PVP-B and PVP-BP are superior to PVP and Inhibex 55W; PVP-BP has better inhibition performance than PVP-B because of the stronger steric hindrance effects of the phenyl group in ... |
| Databáze: | OpenAIRE |
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