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99/02174 Operation of blast furnace with waste plastics: Kashiwagi, Y. et al. Jpn. Kokai Tokkyo Koho JP 10 245,605 [98 245,605] (Cl. C21B5/00), 14 Sep 1998, Appl. 97/49,508, 5 Mar 1997, 8 pp. (In Japanese)

Publisher: Elsevier Science
Year: 1999
Weight: 208 KB
Volume: 40
Category: Article
ISSN: 0140-6701
DOI: 10.1016/s0140-6701(99)97944-4

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In this process, waste plastics are heated at temperatures at which chlorinecontaining compounds decompose. The produced gases are treated with alkali hydroxide to remove chlorine and are then injected through tuyeres into a smelting furnace as fuel.

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A method for the manufacture of blast-furnace coke is described. It comprises coking a coal blend in a coke oven by loading a blend having a bulk density of >0.74 t/m3 and containing high-swelling coal (swelling pressure >20 kPa) and low-coalification coal (volatile matter 30-40% and swelling ratio

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99/01917 Thermal decomposition of waste

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also been determined. A comparison is made between the activities of the alumina supported salts and the corresponding commercially available alumina-supported bimetallic catalysts. 99lO1910 Review of the fundamental research on coliquefaction of coal with waste plastics