Molecular Gate Membrane: Poly(amidoamine) Dendrimer/polymer Hybrid Membrane Modules for CO2 Capture☆
Molecular Gate Membrane: Poly(amidoamine) Dendrimer/polymer Hybrid Membrane Modules for CO2 Capture☆
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分子门膜：用于 CO2 捕获的聚（酰胺基胺）树枝状聚合物/聚合物混合膜模块☆
DOI：
10.1016/j.egypro.2013.05.191
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
S. Kazama
中科院分区：
文献类型：
--
作者：
T. Kai;I. Taniguchi;S. Duan;F. Chowdhury;Taka;K. Yamazaki;K. Ikeda;Tomomi Ohara;S. Asano;S. Kazama
日本政府宣布了一项目标，即将二氧化碳排放量减少到2005年的一半，这是“地球凉爽50”的目标。开发煤气化与CO2捕集与储存一体化循环(IGCC-CCS)是一种很有前途的减少CO2排放的方法。在IGCC-CCS工艺中，CO2分离膜将在降低CO2捕集成本方面发挥重要作用。据估计，使用膜从加压气流中捕获二氧化碳的成本将为1500日圆/吨CO2或更少。我们目前正在开发CO2分子门膜，目标是生产一种新的、高性能的分离膜组件。在分子门膜的概念中，气体分子的通道仅被二氧化碳占据，二氧化碳充当阻止其他气体通过的门。因此，极大地限制了向膜渗透侧渗透的H_2的量，并且可以获得高浓度的CO_2。聚酰胺胺(PAMAM)树枝状大分子在CO2/N_2和CO_2/H_2的分离中表现出良好的分离性能，是分子门膜的候选材料。在RITE中，PAMAM树状大分子/聚合物杂化膜被用于从烟气(CO2/N_2)和IGCC工艺(CO_2/H_2)中分离CO_2。虽然树枝状大分子本身是粘性液体，但树枝状大分子/聚合物杂化膜在压差条件下是稳定的，因此适合于实际应用。该膜对CO_2/H_2的选择性大于30，这是IGCC过程中膜组件应用的必要条件。从这些结果来看，PAMAM树枝状大分子/聚合物杂化膜是一种很有前途的CO2捕集IGCC过程的候选膜。在使用PAMAM树枝状大分子/聚合物杂化材料开发商用膜组件的过程中，Rite、Kuraray Co.、Nitto Denko Corporation和Nippon Steel Engineering Co.成立了分子门膜组件技术研究会，并与该研究会合作开发膜材料、膜组件和分离系统。
Japanese government declared a goal to reduce CO2emissions to half of those in 2005 as the objective “Cool Earth 50”. One promising means of reducing CO2emission is the development of integrated coal gasification combined cycle with CO2capture & storage (IGCC-CCS). In the IGCC-CCS process, CO2separation membranes will play an important role for reducing CO2capture costs. Estimates indicated that the CO2capture cost from a pressurized gas stream using a membrane would be 1,500 JPY/ton- CO2or less.We are currently developing CO2molecular gate membrane, with the goal of producing a new, high-performance separation membrane modules. In the concept of the molecular gate membrane, the pathway for gas molecules is occupied solely by CO2, which acts as a gate to block the passage of other gases. Consequently, the amount of H2permeating to the permeate side of the membrane is greatly limited and high concentrations of CO2can be obtained. Poly(amidoamine)(PAMAM) dendrimers, candidate materials for molecular gate membranes, shows high separation performance in separation of CO2/N2and CO2/H2. In RITE, PAMAM dendrimer/polymer hybrid membranes were developed for CO2separation from flue gas (CO2/N2) and from IGCC process (CO2/H2). Although dendrimer itself is viscous liquid, the dendrimer/polymer hybrid membranes are stable under pressure difference conditions, and thus suitable for practical use. The CO2/H2selectivity of the membrane showed more than 30, which is required to apply membrane modules for IGCC process. From these results, a PAMAM dendrimer/polymer hybrid membrane is a promising candidate for IGCC process with CO2capture. Based on these materials, modification of membrane materials is ongoing to improve CO2separation performance further.In the development of commercial membrane modules using the PAMAM dendrimer/polymer hybrid materials, RITE, Kuraray Co., Ltd., Nitto Denko Corporation and Nippon Steel Engineering Co., Ltd. established Molecular Gate Membrane module Technology Research Association, and membrane materials, membrane modules and separation systems are being developed with collaboration in the research association.
影响因子：
4.2
作者：
Kovvali, AS;Sirkar, KK
通讯作者：
Sirkar, KK