论文部分内容阅读
从实验和理论上研究了生产高纯氮的变压吸附空气分离过程。该试验设备由填充有沸石Ｘ的三个塔组成。ＰＳＡ过程包括六个步骤：空气加压、吸附、回收、空位、产品氮的变压吹洗和解吸。Ｎ２纯度为９５．０～９９．９９２％。通过实验研究了吸附压力和回流比对变压吸附性能的影响。在Ｎ２纯度为９９．９９％，吸附压力为１０６．６５６ｋＰａ时产率为２．８ＮＬ／（ｋｇ·ｍｉｎ）、回收率为５５％。将实验结果与理论模型进行比较，从理论上研究了回收步骤和操作参数对ＰＳＡ性能的影响。回收步骤改善了ＰＳＡ性能，尤其是纯度＞９９％的高纯产品。
Experimental and theoretical study of the production of high purity nitrogen by pressure swing adsorption air separation process. The test equipment consisted of three columns packed with zeolite X. The PSA process consists of six steps: air pressurization, adsorption, recovery, vacancies, product pressure swing purge and desorption of nitrogen. N2 purity 95.0 ~ 99.992%. The effects of adsorption pressure and reflux ratio on the pressure swing adsorption performance were experimentally studied. The yield was 2.8NL / (kg · min) with N2 purity of 99.99% and adsorption pressure of 106.656kPa. The recovery rate was 55%. The experimental results were compared with the theoretical model to study the influence of the recovery steps and operating parameters on the performance of PSA. The recovery step improves PSA performance, especially for highly pure products with> 99% purity.