To address the problems of confined space for offshore application, rotating packed bed (RPB) was firstly used to enhance the regeneration of TEG solution in natural gas dehydration process. The performance of the regeneration, which was exhibited in terms of the desorption efficiency and mass transfer coefficient, was investigated experimentally. The effects of various operating parameters, including rotation speed, gas-liquid ratio, liquid flow rate, liquid inlet temperature, and inlet concentration of rich TEG were studied to assess the impacts on the regeneration process. It was found that the purity of regenerated TEG solution by RPB was basically above 99.7% under a common gas-liquid ratio of 45 (volume ratio), and even higher than 99.98% under the optimal conditions. A mass transfer model combined two-film theory and penetration theory was established, which could well predict the TEG solution regeneration performance in RPB. According to the established model and ASPEN simulation result, an RPB and a packed column were designed respectively for a specific TEG regeneration task. It was found the volume reduction factor of RPB was about 8, which showed well adaptation of RPB for the offshore natural gas extraction due to the outstanding mass transfer performance in the TEG regeneration process.

为了解决海上应用受限空间的问题，旋转填充床（RPB）首先被用于增强天然气脱水过程中TEG溶液的再生。通过实验研究了在解吸效率和传质系数方面表现出的再生性能。研究了各种操作参数的影响，包括转速、气液比、液体流速、液体入口温度和富 TEG 的入口浓度，以评估对再生过程的影响。发现RPB再生TEG溶液纯度在常用气液比45（体积比）下基本在99.7%以上，在最佳条件下甚至高于99.98%。建立了结合两膜理论和渗透理论的传质模型，可以很好地预测RPB中TEG溶液的再生性能。根据建立的模型和ASPEN模拟结果，分别针对特定的TEG再生任务设计了RPB和填充塔。发现RPB的体积减少因子约为8，由于TEG再生过程中出色的传质性能，表明RPB对海上天然气提取具有良好的适应性。