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1.发明授权Process for stabilizing silica-rich geothermal brine to prevent silica scaling 失效用于稳定富二氧化硅的地热盐水以防止二氧化硅结垢的方法
公开(公告)号：US4405463A
公开(公告)日：1983-09-20
申请号：US318127
申请日：1981-11-04
摘要： A process for stabilizing silica-rich geothermal brine to prevent silica scaling comprises selectively providing a supply of ferric ions, allowing the silica-rich brine to combine with the ferric ions to form insoluble, iron-rich siliceous material and separating the insoluble siliceous material from the brine to form a brine having a silica content which is reduced below the saturation level required for substantially scale-free handling of the brine. In one embodiment of the process in which the brine contains sufficient dissolved ferrous ions, the process comprises selectively contacting the brine with an oxidizing agent, preferably by aerating the brine, to oxidize a selected portion of the ferrous ions to ferric ions, which then combine with silica to form the insoluble iron-rich siliceous material. The ferric ion content of an iron-deficient brine may be augmented by adding ferric and/or ferrous ions to the brine. Steam released by flashing the untreated brine may be used to heat the stabilized brine before disposal thereof, so as to increase the silica solubility and reduce the amount of silica required to be removed to prevent scaling.
摘要翻译： 用于稳定富二氧化硅的地热盐水以防止二氧化硅结垢的方法包括选择性地提供铁离子供应，允许富含二氧化硅的盐水与三价铁离子结合以形成不溶性富铁硅质材料，并将不溶性硅质材料从 盐水形成盐水，其二氧化硅含量降低到基本无水处理盐水所需的饱和水平以下。 在其中盐水含有足够溶解的亚铁离子的方法的一个实施方案中，该方法包括选择性地使盐水与氧化剂接触，优选通过使盐水充气，将亚铁离子的选定部分氧化成铁离子，然后将铁离子 用二氧化硅形成不溶性富铁硅质材料。 通过向盐水中加入铁和/或亚铁离子可以增加缺铁盐水的铁离子含量。 通过闪蒸未经处理的盐水释放的蒸汽可用于在处理之前加热稳定的盐水，以便增加二氧化硅溶解度并减少被除去的二氧化硅的量以防止结垢。
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2.发明授权
公开(公告)号：US4259300A
公开(公告)日：1981-03-31
申请号：US123698
申请日：1980-02-22
申请人： William C. Lieffers
发明人： William C. Lieffers
CPC分类号： F24J3/08 , B01D53/52 , Y02E10/10 , Y10S423/19
摘要： An integrated method for the derivation of useful energy from steam containing both hydrogen sulfide and an alkaline acting component, such as ammonia, while substantially reducing the emission of sulfur-containing compounds to the atmosphere. Pretreatment of the steam to selectively remove the alkaline acting components results in the concentration of hydrogen sulfide in the uncondensed vapor as the steam is condensed during energy derivation. The uncondensed vapor is separated from the steam condensate and then is treated to produce an environmentally acceptable vent gas.
摘要翻译： 用于从含有硫化氢和碱性作用组分如氨的蒸汽中衍生有用能量的综合方法，同时显着降低含硫化合物向大气中的排放。 蒸汽的预处理以选择性地除去碱性作用成分导致在能量衍生过程中蒸汽冷凝时，未冷凝的蒸气中的硫化氢浓度。 将未冷凝的蒸汽与蒸汽冷凝物分离，然后进行处理以产生可接受环境的通气。
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公开(公告)号：US4407366A
公开(公告)日：1983-10-04
申请号：US328195
申请日：1981-12-07
CPC分类号： F03G7/06 , E21B33/00 , E21B33/02 , E21B33/068
摘要： A method for capping an idle geothermal steam well so as to prevent hydrogen sulfide emissions and well damage due to steam condensation includes replacing geothermal steam in a well borehole with gas, perferably an inert gas such as nitrogen, and sealing the well at the wellhead. Thereafter additional quantities of the gas are bled into the well borehole at a rate that substantially prevents steam condensation in the borehole. The method includes purging the well bore with air sufficiently to assure all steam is swept out of the well before the gas is introduced.
摘要翻译： 为了防止硫化氢排放和由于蒸汽冷凝造成的井身破坏，一种用于封闭空闲地热蒸汽的方法包括用气体，优选惰性气体如氮气替代井眼中的地热蒸汽，并将井密封在井口处。 此后，将额外量的气体以基本上防止钻孔中的蒸汽冷凝的速率排放到井眼中。 该方法包括用足够的空气吹扫井筒，以确保在引入气体之前所有蒸汽都从井中扫出。
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公开(公告)号：US4420938A
公开(公告)日：1983-12-20
申请号：US393460
申请日：1982-06-29
申请人： William C. Lieffers
发明人： William C. Lieffers
摘要： Useful energy is derived from steam flashed from hot geothermal brine having a tendency to deposit amorphous silica or calcite upon a reduction in the pressure or temperature of the brine. Steam condensate produced from the flashed steam is pressurized, acidified and preheated, and the acidified preheated steam condensate is mixed with the hot geothermal brine at a point upstream of the flash stage so as to form a hot aqueous mixture with a reduced tendency for deposition of amorphous silica or calcite.
摘要翻译： 有用的能量源自在热盐水中闪蒸的蒸汽，其具有在盐水的压力或温度降低时沉积无定形二氧化硅或方解石的倾向。 从闪蒸的蒸汽产生的蒸汽冷凝物被加压，酸化和预热，并且将酸化的预热蒸汽冷凝物与闪蒸阶段上游的一个点处的热地热盐水混合，以形成具有减少的沉积倾向的热水混合物 无定形二氧化硅或方解石。
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5.发明授权Process for integrating treatment of and energy derivation from geothermal brine 失效将地热盐水处理和能量衍生整合的过程
公开(公告)号：US4244190A
公开(公告)日：1981-01-13
申请号：US953644
申请日：1978-10-23
申请人： William C. Lieffers
发明人： William C. Lieffers
摘要： A process for treating and deriving useful energy from a two-phase geothermal brine containing non-condensible gases, including hydrogen sulfide, and also containing heavy and/or transition metals in solution, wherein the non-condensible gases are separated from the geothermal brine. Substantially all of the hydrogen sulfide contained in the non-condensible gas is converted to sulfur dioxide and at least a portion of the sulfur dioxide is removed from the non-condensible gas thereby rendering the same environmentally acceptable for discharge. The separated geothermal brine is flashed to a high quality steam utilized for energy derivation. The portion of sulfur dioxide removed from the non-condensible gas is added to the remaining brine for reinjection into the subterranean geothermal reservoir.
摘要翻译： 一种从含有不可冷凝气体（包括硫化氢）并且还含有溶液中的重金属和/或过渡金属的两相地热卤水处理和获得有用能量的方法，其中不可冷凝的气体与地热卤水分离。 包含在不可冷凝气体中的所有硫化氢基本上都被转化为二氧化硫，并且至少一部分二氧化硫从不可冷凝气体中除去，从而使排放相同的环境是可接受的。 分离的地热盐水被闪蒸到用于能量衍生的高质量蒸汽。 将从不可冷凝气体中除去的二氧化硫部分加入到剩余的盐水中以再注入地下地热储层。
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6.发明授权Motionless mixer and method for removing scaled mixing elements therefrom 失效用于从其中移除缩放的混合元件的运动混合器和方法
公开(公告)号：US4183682A
公开(公告)日：1980-01-15
申请号：US932436
申请日：1978-08-10
申请人： William C. Lieffers
发明人： William C. Lieffers
CPC分类号： B01F5/0617 , B01F15/00935 , B01F15/00019 , B01F2005/0635
摘要： An inline motionless mixer for mounting in a fluid-conducting conduit having a removable housing which facilitates cleaning of the internal mixing elements.
摘要翻译： 用于安装在具有可移除壳体的流体导管中的内联静止混合器，其有助于内部混合元件的清洁。
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