| 摘要 |
453,546. Continuous production of water gas. WINTERSHALL AKT.-GES., 139, Hohenzollernstrasse, and SCHMALFELDT, H., 15, Bergstrasse, both in Cassel, Germany. Nov. 2, 1935, No. 30360. Convention date, Nov. 26, 1934. [Class 55 (i)] In the production of water gas or gas for the synthesis of benzine by the gasification of pulverulent fuel injected through inlets b into a gasifier a by means of circulating gases containing steam heated in regenerators d<1>, d<2> and supplied to the gasifier through inlets c<1>, c<2>, a superpressure is created between the regenerators and the gasifier by a reduction in the cross-section of the gas inlets, so as to prevent or reduce the flow of gas between the reaction chamber and the heated regenerator. Any part of the path of the latter may be reduced or the ends entering the gasifier may be arranged as nozzles, the reduction in section being 5 to 80 per cent. The pressure in the heating regenerating zone is maintained higher than in the gasifying zone by the least possible amount. Back flow is also reduced by admission of additional steam through valved inlets s<1>, s<2> arranged in front of the nozzles. Coal, charcoal, lignite and peat may be gasified ; the circulating gas may comprise water gas, hydrogen and carbon dioxide, and producer gas ; and the preferred temperature range for the heated gas is 700- 1600‹ C.
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