| 摘要 |
1500185 Processing coal for the production of power L & C STEINMULLER GmbH and K KNIZIA 7 Jan 1975 [8 Jan 1974] 685/75 Heading C5E A plant for the processing of coal to give low sulphur products which can be used for the generation of electric power and gas comprises: (a) a heat generating station for supplying the necessary heat for coal processing, comprising a fuel fired steam generator; (b) a coal preparation station comprising a size reducing unit and a preoxidation unit; (c) a coal processing station comprising a gasification unit and a gas coke separator unit; (d) means for conveying the coke from the separator to the combustion chamber of the steam generator or to a synthesis gas producer; (e) a station for the desulphurization of the gas from the processing station comprising a gas purifier, an H 2 S scrubber, and a sulphur recovery unit; (f) heat exchange means for recovering heat from the gas from the processing station before it is purified; and (g) means for conveying the sulphur free gas to the steam generator and other gas consuming devices. The gasification unit may be heated by a carrier gas heated in the heat generating station. A gas turbine installation may be provided before the steam generator for the production of power from the sulphur free gas. Waste heat from high temperature reactors may be used for the coal treatment, gasification, and coking. The gasification step may be a steam devolatilization. |
