共查询到20条相似文献,搜索用时 62 毫秒
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反渗透膜技术在电厂化学水处理中的应用优势较为突出。简单介绍了电厂化学水处理标准,探究了反渗透膜技术的应用原理,论述了反渗透膜技术在电厂化学水处理中的应用流程,并对反渗透膜技术在电厂化学水处理中的应用结果进行了进一步探究。 相似文献
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刘鹏飞 《中国石油和化工标准与质量》2019,(18):185-186
本文主要针对当前PLC技术在电气工程自动化控制中的应用进行分析研究,当前PLC技术在工业生产中的应用极大地提升了电气工程自动化控制的生产效率,PLC技术在实际应用的过程当中也逐渐显示出了技术的应用优势。因此需要对电气工程自动化控制中的PLC技术的实际应用进行分析,不断促进技术的优化和升级。 相似文献
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《分离科学与技术》2012,47(3):239-248
Abstract A universal separation index, the extent of separation, is proposed and mathematically described. This index is easily calculated, normalized, invariant to a permutation in indices, and conceptually similar to the De Donder extent of reaction. It applies to any type of separation system, any initial or final level of component purity, any concentration profile (if one exists), any initial amount of components, multicomponent systems, and both separation and mixing processes. The index is employed to characterize one of the simplest of all separation systems—the single equilibrium stage. 相似文献
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在实际建设和发展过程中,绝大多数的气化炉都使用煤为基础性的燃料,同时还使用氧气作为主要的气化剂。我国工业建设和发展的过程中,需要大力推动化工工业的发展,并在此过程中不断对其应有的油气工程产业进行完善,使得其逐渐向着煤炭方面进行发展。在这种状况下,就能够促进我国现代化化工产业的发展,并加强化工产业的转型,以促进其配套生产的空分装置在一定程度上得到转型。在逐渐发展的过程中对空分装置的研究,以及其安全运行过程中的管理措施就成为化工行业乃至整体工业领域关注的重点问题之一。 相似文献
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《Gas Separation & Purification》1990,4(1):2-7
A review is given of the historical background to the importance of separation processes in chemical engineering. Whereas distillation remains the most important process for large scale separation of miscible fluids, recent developments, particularly in the area of biochemical engineering, have given a stimulus to the development of some highly discriminating techniques, including membrane technology, selective adsorption, liquid extraction using special solvents, and affinity methods. 相似文献
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《分离科学与技术》2012,47(13-15):1039-1050
Abstract The efficiency of Cd2+ foam separation with sodium lauryl sulfate and sodium laurate from sodium sulfate and sodium nitrate solution was tested. Foam fractionation of Cd2+ with lauryl sulfate in the form of a hydrated ion pair 2C12H25SO4, Cd2+ is ineffective because of a low recovery and high hydration of the foam. But ion flotation of Cd2+ as a low-solubility salt (C12H25COO)2Cd is highly effective. The presence of electrolyte in the solution has a negative influence on Cd2+ foam fractionation with lauryl sulfate because of an increase of inert salt concentration which causes competition for the collector between colligend Cd2+ and the added Na+ ions, and because of simultaneous increase in the thickness of water sheaths around the gas bubbles. In the case of ion flotation with sodium laurate, the presence of electrolyte improves Cd2+ recovery and decreases the thickness of the water sheaths around the gas bubbles. The interpretation of the results is based on the exchange of the collector counterions as well as on the properties of the reaction products. 相似文献