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| 1 | 气体水合物快速生成强化技术与方法研究进展显示文摘水合物技术可应用于天然气储运、污水处理、海水淡化、混合气体分离、水溶液浓缩以及水合物蓄冷等领域,而该技术成功应用的关键在于如何强化水合物快速生成。本文介绍了水合物的生成机理,综述了气体水合物快速生成强化技术与方法研究进展,分析了各自的优缺点,并对气体水合物快速生成技术进行了展望。 | 吕秋楠 陈朝阳 李小森 | 2011 | 化工进展2011,30,1: | 25 |
| 2 | 水合物形成促进剂研究进展显示文摘添加促进剂是高效制备水合物的研究热点,促进剂及其添加量对水合物生成效果至关重要。本文主要从热力学促进剂和动力学促进剂两大类型进行分析:总结了可溶水相热力学促进剂和不可溶水相热力学促进剂的浓度对水合物形成相平衡的影响;从表面活性剂、纳米粒子和相变材料等添加剂,阐述了动力学促进剂添加量对水合物生成诱导时间、储气量和生成速率等方面的影响。促进剂都存在最佳浓度的添加量,并且不同类型促进剂复配更有利于水合物生成。目前添加促进剂后水合物形成机理的研究大多从宏观现象推测,部分学者通过拉曼光谱、X射线衍射和显微观察探索分析促进剂对水合物形成的微观影响,这方面研究有待于进一步开展。添加量作为水合物形成促进剂的重要指标,研究者应得到水合物形成促进剂的最佳浓度与所研究对象的关联性。 | 周麟晨 孙志高 李娟 李翠敏 | 2019 | 化工进展2019,38,9: | 11 |
| 3 | Hydrate capture CO_2 from shifted synthesis gas, flue gas and sour natural gas or biogas显示文摘CO2 capture by hydrate formation is a novel gas separation technology, by which CO2 is selectively engaged in the cages of hydrate and is separated with other gases, based on the differences of phase equilibrium for CO2 and other gases. However, rigorous temperature and pressure, high energy cost and industrialized hydration separator dragged the development of the hydrate based CO2 capture. In this paper, the key problems in CO2 capture from the different sources such as shifted synthesis gas, flue gas and sour natural gas or biogas were analyzed. For shifted synthesis gas and flue gas, its high energy consumption is the barrier, and for the sour natural gas or biogas (CO2/CH4 system), the bottleneck is how to enhance the selectivity of CO2 hydration. For these gases, scale-up is the main difficulty. Also, this paper explored the possibility of separating different gases by selective hydrate formation and reviewed the progress of CO2 separation from shifted synthesis gas, flue gas and sour natural gas or biogas. | Yanhong Wang Xuemei Lang Shuanshi Fan | 2013 | Journal of Energy Chemistry2013,22,1: | 10 |
| 4 | 有机相变乳液中HCFC–141b水合物生成及稳定性显示文摘为了促进水合物形成,在HCFC–141b、有机相变材料(正癸酸和十二醇)和水体系中添加表面活性剂Tween 80和Span 80作为乳化剂,采用高速搅拌的方法制备了有机相变材料-表面活性剂-制冷剂-水乳液体系,增大水分子与制冷剂的接触面积。实验研究了静态条件下有机相变材料和表面活性剂添加量对水合物形成的影响。研究结果表明添加乳化剂可以有效提高水合物的蓄冷量,减少水合物形成诱导时间,降低水合物生成的随机性;温度越低,水合物促进效果越好。水合物生成/分解循环实验表明,添加Tween 80的乳液体系的稳定性好,有机相变乳液提高了水合物生成/分解循环过程的稳定性。 | 周麟晨 孙志高 陆玲 王赛 李娟 李翠敏 | 2019 | 化工学报2019,70,5: | 4 |
| 5 | 水合物法分离气体的促进剂及促进机理研究进展显示文摘目前添加促进剂后水合物形成机理并无统一定论,本文详细阐述了气体水合物形成的降低表面张力理论、临界胶束理论、毛细效应理论、模板效应理论和表面疏水效应理论等促进机理,综述了传统促进剂(THF、CP、SDS)、生物环保型促进剂(氨基酸、淀粉),尤其是离子液体在气体水合物形成相平衡实验、动力学规律和促进机理方面的应用研究进展,阐述了离子液体半笼型水合促进剂在混合气体分离方面的研究现状,指出应从促进剂结构性质及其在水相中的聚集形态入手,研究促进剂−气体−水之间的分子间作用力,建立各类气体水合物促进剂的筛选体系. | 王兰云 谢辉龙 卢晓冉 徐永亮 王燕 李瑶 魏建平 | 2021 | 工程科学学报2021,43,1: | 3 |
| 6 | Growth kinetics of hydrate formation from water–hydrocarbon system显示文摘Gas hydrates have drawn global attentions in the past decades as potential energy resources.It should be noted that there are a variety of possible applications of hydrate-based technologies,including natural gas storage,gas transportation,separation of gas mixture,and seawater desalination.These applications have been critically challenged by insufficient understanding of hydrate formation kinetics.In this work,the literatures on growth kinetic behaviors of hydrate formation from water-hydrocarbon were systematically reviewed.The hydrate crystal growth,hydrate film growth and macroscopic hydrate formation in water system were reviewed,respectively.Firstly,the hydrate crystal growth was analyzed with respect to different positions,such as gas/liquid interface,liquid–liquid interface and gas–liquid–liquid system.Secondly,experimental and modeling studies on the growth of hydrate film at the interfaces between guest phase and water phase were categorized into two groups of lateral growth and thickening growth considering the differences in growth rates.Thirdly,we summarized the promoters and inhibitors reported(biological or chemical,liquid or solid and hydrophobic or hydrophilic)and analyzed the mechanisms affecting hydrate formation in bulk water system.Knowledge gaps and suggestions for further studies on hydrate formation kinetic behaviors are presented. | Youhong Sun Shuhui Jiang Shengli Li Guobiao Zhang Wei Guo | 2019 | Chinese Journal of Chemical Engineering2019,27,9: | 3 |
| 7 | 淀粉接枝AA/AM的制备与性能研究显示文摘采用反相悬浮聚合法制备了淀粉接枝丙烯酸/丙烯酰胺高吸水树脂,红外光谱表明接枝成功。对合成产物的保肥性能、吸附性能和降解性能进行了研究,结果表明:在土壤中加入吸水树脂,可在一定程度上改善土壤对氮、磷、钾肥料养分的吸附能力,提高土壤保肥能力。合成树脂对金属离子Ca^(2+)、Mg^(2+)和Ba^(2+)有较好的吸附性;合成树脂在紫外光照射下有较好的降解率。 | 张铭 | 2016 | 广州化工2016,44,9: | 3 |
| 8 | 添加剂强化制冷剂气体水合物生成研究进展显示文摘简要介绍了制冷剂气体水合物作为蓄冷工质的优点及生成过程。对于制冷剂气体水合物普遍存在生成速度慢的问题,通过添加剂来强化体系传质传热,可显著提高制冷剂气体水合物的生成速度,对推动制冷剂气体水合物的工业应用具有重要的现实意义。综述了国内外利用添加剂强化制冷剂气体水合物生成的研究现状,指出多种添加剂联用将是制冷剂气体水合物快速生成的较佳选择,最后总结了制冷剂气体水合物研究中存在的不足。 | 朱沛沛 高林娜 杨焘 李璞 李娜 | 2017 | 应用化工2017,46,6: | 1 |