Solids Deposition from Two-Phase Wax–Solvent–Water “Waxy” Mixtures under Turbulent Flow
Solids Deposition from Two-Phase Wax–Solvent–Water “Waxy” Mixtures under Turbulent Flow
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DOI：
10.1021/ef301897d
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发表时间：
2013-04
期刊：
影响因子：
5.3
通讯作者：
Adebola S. Kasumu;A. Mehrotra
中科院分区：
文献类型：
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作者：
Adebola S. Kasumu;A. Mehrotra
研究了两相蜡质混合物（由溶于多组分溶剂和水的多组分石蜡组成）在紊流条件下的固相沉积。沉积实验在6种质量%的蜡溶液中进行，分别含有0、5、10、15、20、25和30 vol %的水，在5600 < Re < 25 300的不同流速下，在不同的冷热流温度下进行。在实验装置中，沉积迅速形成，所有实验均在10-20分钟内达到热稳态。发现沉积物的含水量与蜡质混合物的含水量无关。发现沉积物质量随着Re、蜡质混合物温度和/或冷却剂温度的增加而减少。当蜡质混合物的含水量增加到10 vol %左右时，沉积物质量也随之增加，随后下降。沉积数据，一个…
The deposition of solids from two-phase waxy mixtures (comprising a multicomponent paraffinic wax dissolved in a multicomponent solvent and water) was studied under turbulent flow conditions in a flow-loop apparatus, incorporating a cocurrent double-pipe heat exchanger. The deposition experiments were performed with 6 mass % wax solutions, containing 0, 5, 10, 15, 20, 25, and 30 vol % water, at different flow rates over 5600 < Re < 25 300, and at different hot and cold stream temperatures. In the bench-scale apparatus, the deposit was formed rapidly such that a thermal steady state was attained within 10–20 min in all experiments. The water content of the deposit was found to be not related to the water content of the waxy mixture. The deposit mass was found to decrease with an increase in Re, the waxy mixture temperature, and/or the coolant temperature. The deposit mass also increased as the water content of the waxy mixture was increased to about 10 vol % and decreased thereafter. The deposition data, a...