| dc.description.abstract | The goal of this study is to measure adsorption performances for water vapor in the case of FAM Z05 and MOF (Metal-organic frameworks) by using gravimetric method (load cell). The study was conducted under two different environments, which are atmospheric pressure and vacuum. In addition, more materials, such as traditional zeolites: 13X, Y type, ZSM-5, SAPO and silica gel, were used to compare adsorption performance for water vapor under the same environments. The adsorption rate differences for each adsorbent under the air conditioning condition were calculated. It could highly improve the design for adsorption bed in adsorption system in the future.
According to the result of the study, Y type zeolite had the best adsorption speed. It only needed three hours to reach saturated state, and so it is more applicable in adsorption systems with short cycles. SAPO zeolite had the best adsorption rate, the adsorption rate for SAPO zeolite is 0.27 g/g in eight hours. It could still adsorb water vapor after eight hours, and it is applicable in adsorption systems with long cycles. In vacuum chamber, comparing MOF and FAM Z05 with others, MOF and FAM Z05 desorb water vapor at 60 oC, which means they could desorb water vapor at much lower temperature. Therefore, it becomes more desirable in terms of adsorption system. Comparing adsorption rate differences under various air conditioning condition, MOF has the best adsorption rate difference. As a result, MOF might be a good design for coating adsorption bed in the future.
Keyword: gravimetric method, adsorption system, zeolite, FAM Z05, MOF.
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