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- double column pressure swing 双塔变压
- Brief Sum-Up of Use of Pressure Swing Adsorption Technology. 变压吸附技术应用小结。
- The three coordinate numerical control double column cutting tool can adopt some variety of incise method, for example: the laser incises, the plasma incises, the high pressure water incises etc. 该三自由度数控龙门切割机可采用多种切割方法，如激光切割、等离子切割、高压水切割等。
- Reclaimation of ethylene from vent gas in the epoxy ethane plant by pressure swing adsorption(PSA) were studied. 采用抽空及甲烷吹扫再生2种变压吸附工艺对环氧乙烷装置排放气中乙烯的回收进行了研究。
- The Times was much stirred by Humboldt's death and gave him a double column spread. 《时报》对洪堡的死大为震动，给他安排了两栏的篇幅。
- Pressure swing adsorption(PSA) gas separation process is analyzed with the systematic entropy analytical method. 采用系统熵分析的方法对变压吸附气体分离过程进行了分析。
- In the utilization of PSA(pressure Swing Adsorption),the key is the choice and preparation of methane adsorbent. 煤层气主要成分为甲烷,对于吸附分离的工艺而言,关键是甲烷气体吸附剂的选择和制备。
- The reasons for selecting open or closed hydrostatic guideway on the CNC double column boring and milling machine were discussed. 并对数控龙门镗铣床床身工作台导轨副采用开式或闭式静压导轨的理由分别进行了论述。
- The status of VCM and acetylene gas recovery by pressure swing adsorption in vinyl chloride production units were introduced. 介绍了在氯乙烯生产装置中,采用变压吸附工艺回收精馏尾气中的VCM和乙炔气的情况。
- The limit value of drilling fluid density for avoidingthe borehole wall instability and the hydrostatic column pressure model were also determinedin this paper. 并根据井壁面岩块的极限稳定条件，建立了防止井壁岩块失稳的极限及井内钻井液柱压力模型。
- In this paper the development and application of pressure swing adsorption(PSA) as a kind of new technology is introduced. 介绍了变压吸附作为一种新型的气体分离技术的发展及其应用。
- When underbalanced drilling or drilling easy leaky zone by using aeration fluid,the determination of fluid density and downhole fluid column pressure is very important. 利用气体型流体进行欠平衡钻井,或钻易漏地层时,流体密度及井下液柱压力的确定十分重要。
- The principle and operation status of pressure swing adsorption nitrogen units and the influential factors on nitrogen gas purity was introduced. 介绍了变压吸附制氮机组的工作原理、影响氮气纯度的因素以及运行状况。
- Refinery catalytic dry gas was processed into feedstocks of ethylene cracking by pressure swing adsorption concentration and refining removal of impurities. 进行了炼厂催化干气经变压吸附浓缩及精制除杂后用作乙烯裂解原料的工业实践。
- Results show that the elution curves calculated by the model of the non-equilibrium double column cycling chromatography are good agreement with experimental elution curves of chromatography. 结果表明：采用非线性非平衡双柱循环色谱模型计算的流出曲线与实验结果相吻合。
- The opinions and experences about controlling the quality of high pressure swing guniting and reducing the cement consumption in the construction are introduced in this paper. 并介绍了作者对高压摆喷的体会，提出了控制高喷质量及降低施工水泥消耗量的具体措施。
- The principle of pressure swing adsorption (PSA) concentrated ethylene gas was described.The cause of overproof CH4 in concentrated ethylene gas was analyzed. 对变压吸附提浓乙烯原理进行了论述,分析了提浓乙烯产品中甲烷含量超标的主要原因。
- The article summarized the principium and advantages of the gas separating technology of PSA (pressure swing adsorption technology), and the application in foods industry. 简要介绍变压吸附气体分离技术的原理、优点,重点列举该技术在食品工业中的应用。
- During the drilling procedure, the mud filtrates continuously penetrate into the formation because of the unbalance between the mud column pressure in the borehole and formation pressure. 在钻井过程中,井筒泥浆柱压力和地层压力的不平衡使得泥浆滤液不断渗入地层。
- A more realistic mathematical model, which accounts on the non-isothermal effects in the adsorb bed, was developed for the pressure swing adsorption of separating oxygen from air. 建立了变压吸附空分制氧过程非线性、非等温模型，并进行了数值模拟，计算结果与实测值吻合较好。
