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首页> 外文期刊>Chemical Engineering Research & Design: Transactions of the Institution of Chemical Engineers >Study and modelling of the vacuum swing adsorption (VSA) process employed in the production of oxygen
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Study and modelling of the vacuum swing adsorption (VSA) process employed in the production of oxygen

机译:研究和建模的真空吸附(VSA)从事的生产过程氧气

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An isothermal and non-equilibrium mathematical model was provided for the multi-component adsorption process. In addition, the software was developed for the VSA-based production of oxygen with the use of a CaX zeolite molecular sieve. The mathematical model and computer software were verified on the basis of experimental data. The study employed a test stand comprising two adsorption columns. The adsorption pressure P_A = 150 and 135 kPa and desorption pressure P_D = 20 kPa were adopted in the experiments. The tests produced oxygen with the purity of 90-94% O_2 (vol), at an efficiency of 55-73% and productivity of 570-850 kg O_2 per ton per day. The calculation results showed good consistency with experimental data. The sorption properties of the adsorbent employed were found to be decisive for the performance and the yield of the VSA process while the diffusion phenomena had a considerably lower effect.
机译:一个等温、非平衡数学多组分的模型提供吸附过程。为VSA-based开发生产的氧气用CaX沸石分子筛。的数学模型和计算机软件验证实验数据的基础上。研究使用一个测试站组成的两个吸附列。150年和135年P_D = 20 kPa和解吸压力kPa采用的实验。产生氧气的纯度90 - 94%提取成分(卷),以55 - 73%的效率生产力的每天570 - 850公斤每吨提取成分。计算结果显示良好的一致性与实验数据。吸附剂的使用被发现决定性的性能和收益率VSA过程虽然有扩散现象大大降低效果。

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