Mechanical Engineering - Theses
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ItemAn introduction to brown coal distillation: the German "schwelung von braunkohle"( 1955)After the successful production of hard charfrom Yallourn brown coal had been demonstrated on the laboratory scale in this Brown Coal Research Laboratory by F. A. Bull in 1953, attention began to be turned to extending the process to a larger scale and to the possible design of a full size carbonization plant. In October 1953, the author was requested by Professor Henderson to give some consideration to the carbonization of brown coal briquettes for the production of hard char in Victoria, particularly with regard to: 1.The economic of the process. 2. A suitable type of carbonization retort. 3. The recovery of by-products. Professor Henderson was particularly interested in a design of carbonization retort which would enable high calorific value carbonization gas to be recovered and sold as a by-product for town supply. It was to review these questions that this report was prepared. Further, however, the author found that existing literature in the English language gave only a very narrow picture of the practice of brown coal carbonization and nothing of the principles underlying the practice. The report was therefore designed to provide at the same time an introduction to these principles and practice for the benefit of any reader interested in the carbonization of brown coal. The author was very fortunate here in being able to secure a copy of a prospectus published by the Lurgi Gesellschaft which gave a first class description of their Circulating Gas Distillation Process, and has translated it from the original German to form Part I of the report.