| 摘要 |
<p>PURPOSE:To extract hydrogen sulfide contained in geothermal steam as iron sulfide or copper sulfide useful as an agricultural chemical, easily, by placing a reaction column filled with slab containing iron scraps or copper scraps, etc., to the path of geothermal steam, thereby reacting the hydrogen sulfide with the iron scrap, copper scrap, etc. CONSTITUTION:A fluid mixture of vapor and water obtained from the production well 1 is introduced to the part 2 for the treatment of geothermal fluid to extract steam, which is transferred to the reaction column 3 filed with slabs containing iron scraps, copper scraps, etc. The hydrogen sulfide contained in the geothermal steam is made to react with the iron scraps or copper scraps according to the reaction formulas I and II, and the produced iron sulfide or copper sulfide is extracted from the system. The steam free of hydrogen sulfide is sent to the steam-utilization system 4 and used as a hot spring, a heat source, etc., and the condensed hot water is returned to the reinjection well 5. Since hydrogen sulfide can be removed surely from the geothermal steam, the problems such as environmental pollution and the corrosion of power generator, etc., can be prevented, and furthermore, iron sulfide and copper sulfide, etc., useful as a raw material of agricultural chemicals can be produced at a low cost.</p> |
