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Development of Ultra Rapid Pressure Swing Adsorption

超快速变压吸附的发展

基本信息

批准号：
06555233
负责人：
SUZUKI Motoyuki
金额：
$ 2.56万
依托单位：
University of Tokyo
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A)
财政年份：
1994
资助国家：
日本
起止时间：
1994 至 1996
项目状态：
已结题

项目摘要

In order to apply the pressure swing adsorption (PSA) technologies to a more variety of the area, breakthrough approaches are essential in terms of the development of the compact, high-capacity and energy-efficient PSAs. Development of novel adsorbents, novel configurations and so on have been found in the literature so far to meet the above-mentioned demand. We have developed the ultra rapid PSA having extremely short cycle time in the order of the magnitude of second or shorter, enabling the drastic enhancement of the production capacity.1. Development of piston-driven ultra rapid PSABy employing the oxygen enrichment form the air as a model case, the piston-driven ultra rapid PSA was developed and its basic characteristics were clarified by laboratory-scale experiments and simplified numerical simulations. The PSA operations with the cycle time of one second or shorter were practically possible by introducing suction and exhaust by the up-and-down motion of the piston.2. Application to the carbon dioxide recovery from stack gasThe application of this novel PSA to the recovery of carbon dioxide from stack gases which has been paid attention to in these days. It was found that the development and employment of the hydrophobic zeolite are necessary for this purpose. The hydrophobic zeolite has made it possible to sufficiently remove the carbon dioxide in high moisture conditions.3. Proposal and development of honeycomb zeoliteThe honeycomb zeolite was developed and prepared to derive the high performance of the URPSA,which has much less pressure drop. However, unfortunately it was found that the further technical improvements are needed to achieve the separation performance estimated by the numerical simulations based on a mathematical model.

为了将变压吸附技术应用于更广泛的领域，必须在开发紧凑、高容量和节能的变压吸附方面取得突破性进展。到目前为止，在文献中已经发现了新的吸附剂、新的配置等的开发以满足上述需求。我们开发了超快速PSA，其循环时间非常短，在秒或更短的数量级，能够大幅提高生产能力。1.活塞驱动超快速变压吸附器的研制以空气富氧为模型，研制了活塞驱动超快速变压吸附器，并通过实验室试验和简化的数值模拟阐明了其基本特性。通过活塞的上下运动引入抽吸和排气，PSA操作的循环时间为1秒或更短。2.在烟道气二氧化碳回收中的应用这种新型变压吸附技术在烟道气二氧化碳回收中的应用近年来受到了广泛的关注。发现疏水沸石的开发和应用是实现这一目的的必要条件。疏水沸石使得在高湿度条件下充分去除二氧化碳成为可能。蜂窝沸石的提出和发展蜂窝沸石的开发和制备是为了获得具有更小压降的高性能URPSA。然而，不幸的是，人们发现，需要进一步的技术改进，以实现基于数学模型的数值模拟估计的分离性能。