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Amine-impregnated silica zeolite from microalgae ash at different calcination temperatures for CO2 capture
International Journal of Energy Research ( IF 4.3 ) Pub Date : 2021-09-07 , DOI: 10.1002/er.7241 Cui Quan 1, 2 , Xiangyu Jia 1 , Kouer Zhang 1 , Yilin Zhang 1 , Salman Raza Naqvi 3 , Nor Aishah Saidina Amin 4 , Ningbo Gao 1
International Journal of Energy Research ( IF 4.3 ) Pub Date : 2021-09-07 , DOI: 10.1002/er.7241 Cui Quan 1, 2 , Xiangyu Jia 1 , Kouer Zhang 1 , Yilin Zhang 1 , Salman Raza Naqvi 3 , Nor Aishah Saidina Amin 4 , Ningbo Gao 1
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Microalgae is an excellent type of biomass for bio-energy production due to its high calorific value and fast growth. However, a large amount of ash would be generated during microalgae utilization. In this work, MCM41 was prepared from microalgae ash. The materials were calcined at different temperatures (450°C, 500°C, 550°C, and 600°C), and the effect of calcination temperature was investigated. Polyethyleneimine (PEI) was loaded in MCM41 by the impregnation method at different loading amounts (30%, 40%, 50%, and 60%). The CO2 capturing capacity was measured. The results showed that the MCM41 calcined at 450°C was the optimal material, which performed the most developed pore structure. Amine loading enhanced the CO2 capturing capacity of MCM41. The CO2 capturing capacity increased as PEI loading amount increased. The highest CO2 adsorption amount was 2.275 mmol/g with 60% amine loading at 25°C and 1 bar. Adsorption temperature had a mild impact on CO2 capture, and its CO2 adsorption amount decreased slightly with an increase in the adsorption temperature. It was considered that the CO2 uptake of amine-impregnated MCM41 kept stable at different temperatures below 100°C. Also, it showed good cyclic stability. After 10 cycles, the CO2 capturing capacity of 1.6 mmol/g was exhibited.
中文翻译：
不同煅烧温度下微藻灰的胺浸渍二氧化硅沸石用于 CO2 捕集
微藻具有热值高、生长快等优点，是一种用于生物能源生产的优良生物质。然而，在微藻利用过程中会产生大量灰分。在这项工作中，MCM41 是从微藻灰中制备的。将材料在不同温度（450°C、500°C、550°C和600°C）下煅烧，并研究了煅烧温度的影响。聚乙烯亚胺 (PEI) 通过浸渍法以不同的负载量 (30%、40%、50% 和 60%) 负载在 MCM41 中。测量CO 2捕获能力。结果表明，450℃煅烧的MCM41是最佳材料，其孔隙结构最为发达。胺负载增强了 MCM41 的 CO 2捕获能力。CO 2捕获能力随着 PEI 负载量的增加而增加。在 25°C 和 1 bar 条件下，最高 CO 2吸附量为 2.275 mmol/g，60% 胺负载。吸附温度对CO 2捕集的影响较小，其CO 2吸附量随着吸附温度的升高而略有下降。胺浸渍的MCM41的CO 2吸收被认为在低于100℃的不同温度下保持稳定。此外，它表现出良好的循环稳定性。10个循环后，表现出1.6 mmol/g的CO 2捕获能力。
更新日期：2021-09-07
中文翻译：
不同煅烧温度下微藻灰的胺浸渍二氧化硅沸石用于 CO2 捕集
微藻具有热值高、生长快等优点，是一种用于生物能源生产的优良生物质。然而，在微藻利用过程中会产生大量灰分。在这项工作中，MCM41 是从微藻灰中制备的。将材料在不同温度（450°C、500°C、550°C和600°C）下煅烧，并研究了煅烧温度的影响。聚乙烯亚胺 (PEI) 通过浸渍法以不同的负载量 (30%、40%、50% 和 60%) 负载在 MCM41 中。测量CO 2捕获能力。结果表明，450℃煅烧的MCM41是最佳材料，其孔隙结构最为发达。胺负载增强了 MCM41 的 CO 2捕获能力。CO 2捕获能力随着 PEI 负载量的增加而增加。在 25°C 和 1 bar 条件下，最高 CO 2吸附量为 2.275 mmol/g，60% 胺负载。吸附温度对CO 2捕集的影响较小，其CO 2吸附量随着吸附温度的升高而略有下降。胺浸渍的MCM41的CO 2吸收被认为在低于100℃的不同温度下保持稳定。此外，它表现出良好的循环稳定性。10个循环后，表现出1.6 mmol/g的CO 2捕获能力。
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