Discussions on March 26, 1943 in Leuna on the N10 material

Technical Report · Fri Mar 26 04:00:00 EDT 1943

OSTI ID:6984537

Becker, W

In Leuna, paste was heat exchanged in stall 32; in Scholven, heat exchange was unimportant because of the cheap coal; in Poelitz, heat exchange was urgently needed because coal was expensive; and heat exchangers had become urgently necessary in Blechhammer because of the high thruputs. The difficulties with N10 material used in preheaters were important in connection with heat exchangers, because of the reduction on the preheater load produced by the heat exchangers. A table was given showing a heat balance of Scholven, Welheim, Wesseling, Nordstern, Poelitz, and Upper Silesia (Blechhammer). The different ways of reducing the preheater load were: (1) alterations in the proportion of the different grades of coal paste and increasing its concentration, (2) the use of cold paste, (3) the addition of a third gas heat exchanger, (4) increasing the diameter of the converter, and (5) reducing the amount of gas. By using all the methods, the maximum flue gas temperature might be reduced from 600/sup 0/C to 540/sup 0/C and some twelve hairpins eliminated in the preheater. Lowering the temperature by 10/sup 0/ doubled the life of the tubes. In addition to difficulties caused by material faults, Poelitz and Gelsenberg were handicapped by crust formation. 2 tables.

• Research Organization: I.G. Farbenindustrie, A.G., Merseburg (Germany)
• OSTI ID: 6984537
• Report Number(s): TOM-237-1314-1317
• Country of Publication: United States
• Language: English

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36 MATERIALS SCIENCE
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