有鑑於工業革命以來，溫室效應愈發嚴重，全世界對於溫室氣體越來越重視，希望藉由管控溫室氣體的排放，以及捕捉空氣中的溫室氣體，以減緩溫室效應。在溫室氣體的比例中，二氧化碳對於溫室效應的貢獻被認為是最大的，因此對溫室效應抑制逐漸與二氧化碳捕捉技術畫上等號。近來各種二氧化碳捕捉的技術與時俱進，最近幾年薄膜氣體分離技術開始進入眾人的視野中，並且被證明了具有氣體分離的潛力，也是一個非常有發展性的捕碳技術。
本研究藉由碳酸酐酶 (Carbonic Anhydrase, CA) 促進二氧化碳的水合效率，開發一種基於生物型觸媒的支撐式液膜。期望利用此支撐式液膜進行二氧化碳捕捉，為臺灣2050淨零碳排提供新的技術與設計。碳酸酐酶是生物體內運輸二氧化碳的重要酵素。這種酵素可以在各種生物體中找到，例如人類和牛等哺乳動物。 它對二氧化碳的周轉效率 (turnover rate) 非常高。在本研究中借鑑生物體內的碳酸酐酶反應來開發支撐式液膜。將牛紅細胞 (Bovine Erythrocytes) 中提取的碳酸酐酶應用於支撐式液膜，模擬生物體內的二氧化碳傳輸反應，分離並純化二氧化碳，完成碳捕捉。本研究中支撐式液膜的二氧化碳透過係數在觸媒濃度700ppm、操作溫度35℃以及觸媒溶液pH 7的條件下達到1051 Barrer，且選擇性達到50，另外，在模擬煙道氣(Flue gas)的混和進料中(15% CO2)，二氧化碳的滲透係數達到2444 Barrer，並且選擇性有112，而以空氣作為進料之後，更可以觀察到通量以及選擇性顯著的上升，通量可以提升至3243 Barrer，選擇性更是高達了155， 碳酸酐酶支撐式液膜具有發展成為商業化二氧化碳分離技術的潛力。

In view of the fact that the greenhouse effect has become more and more serious since the industrial revolution, the world has paid more and more attention to greenhouse gases, hoping to slow down the greenhouse effect by controlling the emission of greenhouse gases and capturing greenhouse gases in the air. In the proportion of greenhouse gases, carbon dioxide is considered to be the largest contributor to the greenhouse effect, so the response to the greenhouse effect is gradually equated with carbon dioxide capture technology. Among them, the technology of carbon dioxide capture is also advancing with the times. In recent years, thin-film gas separation technology has begun to enter the field of vision of the public, and it has been proved that it has the potential of gas separation, and it is also a very developing technology.
In this study, carbonic anhydrase (Carbonic Anhydrase, CA) is used to promote the hydration efficiency of carbon dioxide to develop a supported liquid membrane based on a biocatalyst. It is expected to use this supported liquid membrane to capture carbon dioxide and provide new technologies and designs for Taiwan's 2050 net zero carbon emissions. Carbonic anhydrase is an important enzyme for transporting carbon dioxide in organisms. This enzyme can be found in various organisms such as humans and mammals such as cows. It has a very high turnover rate of carbon dioxide. In this study, the carbonic anhydrase reaction in vivo was borrowed to develop a supported liquid membrane. Carbonic anhydrase extracted from bovine erythrocytes (Bovine Erythrocytes) is applied to a supported liquid membrane to simulate the carbon dioxide transport reaction in organisms, separate and purify carbon dioxide, and complete carbon capture. In this study, the carbon dioxide permeability coefficient of the supported liquid membrane reached 1051 Barrer under the conditions of catalyst concentration of 700ppm, operating temperature of 35°C, and catalyst solution pH of 7, and the selectivity reached 50. In addition, in the simulated flue gas in the mixed feed (15% CO2), the permeability coefficient of carbon dioxide reaches 2444 Barrer and the selectivity is 112. This system is applied to the capture of CO2 in the air, showing the CO2 permeability coefficient 3243 Barrer and selectivity coefficient of 155. Carbonic anhydrase-supported liquid membranes have the potential to be developed into a commercial carbon dioxide separation technique.

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