Produce of continuous-dehumidified air free from traces of water vapour is essential in many industrial applications. Temperature swing adsorption (TSA) system and heatless based pressure swing adsorption (PSA) system are generally used to produce ultra-low dew point temperature dehumidified air. In this work, an internally heated TSA system is developed and investigated for its suitability for producing dehumidified air using molecular sieve desiccant. The system is evaluated by conducting experiments in three phases, such as screening, optimization, and validation, to identify the significant parameters using statistically designed experiments. The results indicated that the most critical parameters affecting the quality of the dehumidified air are desorption temperature and space velocity. The other parameters, half-cycle time, bed length and adsorption temperature are found to have meager effects on the system performance. A regression equation is also obtained for predicting the moisture content of the product air in terms of the significant parameters of TSA system. This equation also forms a basis for designing a TSA system to a large scale and provides the tool needed to optimize the drying sub-system within the framework of the drying system. The results show that the feed air can be dehumidified to a level ranging from −20 °C to −70 °C dew point temperature and is most suitable for variety of industrial applications. The performance indicators of TSA system is also compared with PSA system to establish a qualitative guideline for the selection of an appropriate method for air dehumidification purposes. TSA system can be effectively and economically employed to produce the dehumidified air with the operating pressure varying above 3 bar.

在许多工业应用中，生产无痕量水蒸气的连续除湿空气至关重要。通常使用变温吸附（TSA）系统和基于无热的变压吸附（PSA）系统来产生超低露点温度的除湿空气。在这项工作中，开发并研究了内部加热的TSA系统是否适合使用分子筛干燥剂生产除湿空气。通过分三个阶段（例如筛选，优化和验证）进行实验来评估该系统，以使用统计设计的实验来识别重要参数。结果表明，影响除湿空气质量的最关键参数是解吸温度和空速。其他参数半周期时间 发现床长和吸附温度对系统性能的影响很小。还根据TSA系统的重要参数获得了回归方程，用于预测产品空气中的水分含量。该方程式还构成了大规模设计TSA系统的基础，并提供了在干燥系统框架内优化干燥子系统所需的工具。结果表明，进料空气可被除湿至-20°C至-70°C露点温度范围，最适合各种工业应用。还将TSA系统的性能指标与PSA系统进行比较，以建立定性的指导方针，以选择用于空气除湿的合适方法。