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作为氨载体的3D打印的化13X-氧化单位

Nasir Shezad¹, Marco D'Agostini², Ali Ezzine²

¹Division of Materials Science, Department of Engineering Sciences and Mathematics, Luleå University of Technology, Luleå, SE-971 87, Sweden.

|October 9, 2023

概括

一种新型的3D打印化和化复合物 (SPZC) 为氨 (NH3) 储存提供了安全有效的解决方案. 这种结构克服了传统的基于尿素的选择性催化还原系统的局限性,提高了性能和稳定性.

科学领域:

材料科学材料科学材料科学
化学工程是化学工程的重要组成部分.
环境科学环境科学

背景情况:

使用尿素的选择性催化降解 (SCR) 系统面临固体沉积和低启动效率的挑战.
由于安全问题,直接使用氨 (NH3) 受到限制,因此需要固体吸附剂载体.
化 (SrCl2) 显示出高的NH3吸附能力,但由于体积膨胀而遭受结构不稳定.

研究的目的:

为SCR系统开发稳定高效的氨 (NH3) 储存材料.
为了克服NH3吸附过程中SrCl2的体积膨胀问题.
为了研究一种新的复合结构对NH3处理的性能.

主要方法:

使用基于挤出的3D打印 (直接墨水写作) 制造化和化复合材料 (SPZC).
在多个循环中评估SPZC结构的氨 (NH3) 和脱性能.
与纯 SrCl2.2 相比,复合物的结构完整性和吸动力学的分析.

主要成果:

打印的SPZC结构保持了稳定的NH3吸附10个周期,没有容量或完整性损失.
与纯 SrCl2.2 相比,SPZC 显示了增强的和脱动力学.
由于协同效应,复合材料使NH3在更广泛的压力范围 (<0.4bar和>0.4bar) 中吸收.
87.5%的NH3在真空下在20°C时被脱离,这表明再生效率高.

结论:

合理设计的SPZC结构提供了一种安全有效的氨 (NH3) 储存方法.
这种新的复合材料解决了当前SCR系统的关键局限性.
3D打印的SPZC复合材料在各种氨处理应用中显示出前景.

关键词:

3D打印的结构是3D打印的.性土金属化物性土金属化物氨气氨气氨气是一种运动学运动学物理化学吸附方式物理化学吸附方式泽奥莱特石是一种热带石.

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