沙漠/干旱地区 MOFs 吸附式空气取水技术

空气取水是一种不受限于常规水源的有效取水方式，能够提升部队在沙漠/干旱地区的给水保障能力。以西北某沙漠地区的实际环境（相对湿度20%）为应用背景，对比分析了雾水收集法、空气冷却法和吸附剂取水法的特性，在低湿度条件下确定采用吸附剂取水法。针对硅胶、沸石或分子筛等传统吸附剂水负荷不高的缺点，研究新型材料MOFs的化学组成和结构特点，结合其吸附能力强和易再生的独特优势，选定MOF 801为吸附剂并设计了一台套筒式MOFs空气取水装置，对取水装置在相对湿度20%的条件下进行计算研究，得出预估产水量，并分析了相关影响因素。

Adsorption-based Atmospheric Water Harvesting with MOFs Technologyin Desert/Arid Area

Harvesting water from air, without considering conventional water sources, can improve field water supply capability with higher efficiency and self-sustainability, especially for troops in the desert/arid area. Based on the actual environment (relative humidity 20%) in a certain desert area in Northwest China, the characteristics of fog-water collection method, air-cooled method and adsorption method were compared and analyzed, and adsorption method was selected suitable for under low humidity condition. Due to the disadvantages of low water-acquired efficiency using conventional sorbent (such as silica gel, zeolite and molecular sieve), the chemical composition and structure of a new type of MOFs were studied. With excellent performance of absorption and cyclic utilization, MOF-801 was selected as the sorbent to design a sleeve device. The water-acquired capability of the device was calculated, the estimated water yield was obtained, and the related impacting factors were discussed, under the condition of relative humidity 20%.