Single element technology

In 1998, Krupp Uhde became the sole owner of Single Element Technology and continues to put great effort into the further development of membrane cell technology for different electrolysis applications. With a new patent [4] for improved Single Element Technology, Krupp Uhde is ready for the future. 

This technical leadership together with the Krupp Uhde know-how and the licence for the membrane process - which makes Krupp Uhde the only licensor and contractor able to supply complete plant complexes from one source - is the basis for the ongoing success of Krupp Uhde Single Element Technology for electrolysis applica-... 

A typical example of the continual improvement of this top-ranking single-element technology is the further optimisation of the time-proven downcomer [7] (see Fig. 16.3). 

All these modifications lead to the fulfilment of all aspects for an improvement of the Rol by KU single element technology and high efficiency of the latest cell design, such as low energy consumption with a high on-stream factor for the plant, simple and rapid maintenance of the electrolysers, plant load flexibility and high current densities. 

Fig. 16.8 Conversion and expansion of a 600 metric tonnes per day chlorine plant in four steps to a plant capacity of 900 metric tonnes per day using KU single-element technology.

The electrolyzer is based on the single element technology (ThyssenKrupp Uhde GmbH.) About 80 independent electrolysis cells of 2.7 m area, individually sealed by a bolted flange coimection, are mechanically combined and electrically coimected in one electrolyzer. All components, including anode half shells (titanium), are used without change, and only cathode half shells (nickel) are modified for ODC operation. 

Borucinski, T. Schneiders, K. (1998) A new generation of the Krupp Uhde single-element design. In Modem Chlor-Alkali Technology, Vol. 7 (ed. S. Sealey), pp. 105-112. Society of Chemical Industry, London and Royal Society of Chemistry, Cambridge. 

Research and development work on membrane technology was begun jointly with Hoechst AG, Bayer AG and Uhde GmbH in 1973 when the first commercial membranes became available. Until now, Krupp Uhde s know-how has been based on the combined efforts of these three companies in the research and development of this technology. One result is the Single Element patented in Europe in 1980 by Hoechst AG [2] followed by patent applications all over the world [3]. 

Each project has its own unique characteristic physical, environmental, cultural, and regulatory setting. No single approach (technology, process, or cleanup standard) can be universally applied. The following sections discuss the key elements that impact the economic decisions of remediation projects and result in the most efficient, cost-effective restoration. 

For isolators, the barrier between the critical controlled environment and its surroundings is created by a single element, rather than the multilayer protection approach used in cleanroom technology. It is essential, therefore, to realize that the engineering... 

T. Borucinski and K. Schneiders, A New Generation of the Krupp Uhde Single-Element Design. In S. Sealy (ed.). Modem Chlor-Alkali Technology, vol. 7, The Royal Society of Chemistry, Cambridge, UK (1998), p. 105. 

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