The recent roadmap of SPIRE initiative includes the development of “new separation, extraction and pre-treatment technologies” as one of the “key actions” for boosting sustainability, enhancing the availability and quality of existing resources. Membrane condenser is an innovative technology that was recently investigated for the recovery of water vapor for waste gaseous streams, such as flue gas, biogas, cooling tower plumes, etc. Recently, it has been also proposed as pre-treatment unit for the reduction and control of contaminants in waste gaseous streams (SOx and NOx, VOCs, H2S, NH3, siloxanes, halides, particulates, organic pollutants). This perspective article reports recent progresses in the applications of the membrane condenser in the treatment of various gaseous streams for water recovery and contaminant control. After an overview of the operating principle, the membranes used, and the main results achieved, the work also proposes the role of this technology as pre-treatment stage to other separation technologies. The potentialities of the technology are also discussed aspiring to pave the way towards the development of an innovative technology where membrane condenser can cover a key role in redesigning the whole upgrading process.

中文翻译：

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膜冷凝器作为水回收和气体预处理的新兴技术：现状与展望

SPIRE计划的最新路线图包括开发“新的分离，提取和预处理技术”，以作为提高可持续性，提高现有资源的可用性和质量的“关键行动”之一。膜冷凝器是一项创新技术，最近已进行了研究，以回收废气，烟气，冷却塔烟气等废气流中的水蒸气。最近，它也被提议用作还原和还原的预处理装置。控制废气流中的污染物（SOx和NOx，VOC，H2S，NH3，硅氧烷，卤化物，微粒，有机污染物）。该观点文章报道了膜冷凝器在各种气态流的处理中的最新进展，以用于水的回收和污染物的控制。在概述了工作原理，使用的膜以及取得的主要成果之后，这项工作还提出了该技术作为其他分离技术的预处理阶段的作用。还讨论了该技术的潜力，以期为创新技术的发展铺平道路，在该技术中，膜式冷凝器可以在重新设计整个升级过程中发挥关键作用。