Glanor electrolyzer

Glanor bipolar electrolyzers are a joint development of PPG Industries and Oronzio De Nora Impianti Elettrochimici S.p.A. The Glanor electrolyzer consists of several bipolar cells clamped between two end electrode assemblies by means of tie rods, thereby forming a filter press type electrolyzer (Fig. 35). The electrolyzer is equipped with DSA titanium anodes. Each electrolyzer normally consists of 11 or 12 cells. A lower number of cells can, however, be assembled in one electrolyzer. The Glanor electrolyzer was especially designed for large chlor-alkali plants. 

The current is fed into the electrolyzer by means of anodic and cathodic end elements. The anodic compartment of each cell is connected to an independent brine feed tank by means of flanged connections. 

Chlorine gas leaves each cell from the top through the brine feed tank and then passes to the cell room collection system. Hydrogen gas leaves from the top of the 

The V-1144 electrolyzer (Fig. 36) was the first commercial unit, and eight plants utilize this model. The second generation is the V-1161 electrolyzer, which employs Modified Diaphragms, narrower electrode gaps, lower current density, and DSA anodes to achieve lower power consumption than the V-1144 electrolyzer. 

The operating characteristics of the Glanor electrolyzers are shown in Table 8. 

---

PPG and DeNora jointly developed a bipolar filter-press diaphragm cell called the Glanor electrolyzer [32]. The central design feature is the bipolar electrode where one side acts as an anode and the other as a cathode. The electrode consists of a steel plate to which anode fingers are connected on one side and cathode fingers on the other. 

There are two versions of the Glanor electrolyzer V-1144 containing 11 cells, each having an area of 35 m, and V-1161 containing 11 cells, having an area of 49 m per cell. The Glanor cells are currently used only by PPG Industries in the United States, Mexico, and Russia. 

T.C. Jeffery and R.J. Scott, The Glanor Electrolyzer—The New Look in Chlorine Production. In Diaphragm Cells for Chlorine Production, Proceedings. Symposium at The City University, London, Society of Chemical Industry (1977), p. 67. 

The Glanor electrolyzer is a very large bipolar diaphragm type. It has many unique features, and some of these are described in Section 5.4.1. The entire assembly, measuring... 

Table 9. Design and Operating Characteristics of Glanor Bipolar Diaphragm Electrolyzers...

A unique feature of the cathode design is the extension of the cathode fingers from the back plate, which allows easy inspection of the cathode surfaces, and the adaptability to use synthetic separators with minor modifications. The anolyte compartment is connected to an independent brine feed tank by flanged connections and chlorine leaves from the top, through the brine feed tank and then to the chlorine header. Each electrolyzer is fitted with a level alarm, which monitors the level of all the cells in the unit. Figure 5.16 is an isometric cutaway of a Glanor V Type 1144 electrolyzer. 

Brochure from PPG Industries, Glanor V Type 1144 Electrolyzer (1976). 

Dow Chemical was the only early developer to have chlorine production needs large enough to consider the bipolar option [2]. Later, following the development of the DSA anode, PPG Industries and Oronzio De Nora Impianti Elettrochimici designed, and PPG Industries installed Glanor bipolar electrolyzers in a large complex at Lake Charles, Louisiana [12],... 

Figure 35. Glanor bipolar electrolyzer a) Disengaging tank b) Chlorine outlet c) Hydrogen outlet d) Bipolar element e) Brine inlet f) Cell liquor trough g) Cell liquor outlet... 

Table 8. Glanor bipolar diaphragm electrolyzers design and operating characteristics...

Oronzio De Nora Impianti Elettrochimici S.pA Design Features cf Glanor Diaphragm Electrolyzer, Oronzio DeNora Impianti Elettrochimici S.p.A.. Milano. 

---