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首页> 外文会议>CO2 summit II: Technology and opportunity 2016 >DEVELOPMENT AND PLANNING FOR CARBON DIOXIDE (CO_2) CAPTURE, UTILIZATION, AND STORAGE (CCUS) INFRASTRUCTURE IN GEOTHERMAL RESERVOIRS
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DEVELOPMENT AND PLANNING FOR CARBON DIOXIDE (CO_2) CAPTURE, UTILIZATION, AND STORAGE (CCUS) INFRASTRUCTURE IN GEOTHERMAL RESERVOIRS

机译：地热库中二氧化碳（CO_2）捕获，利用和储藏（CCUS）基础设施的开发和计划

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摘要

CO_2 emissions from human activities are a substantial contributor to climate change.1 To reduce CO_2 emissions on a large scale, CO_2-reduction technologies such as CO_2 capture and storage (CCS) will need to be competitive with current energy technologies. CCS systems are costly due to the equipment, construction, and energy needed to capture CO_2, transport it via a pipeline network, and inject it into deep saline aquifers. In CO_2 capture, utilization, and storage (CCUS) systems, the CO_2 is used to produce an economically viable product which could reduce the cost of a CCS system. One option is to use the sequestered CO_2 as a heat extraction fluid in sedimentary basin geothermal reservoirs (CO_2-Geothermal); CO_2 extracts heat more efficiently than naturally existing geo-fluid (e.g., brine). CO_2-Geothermal would require construction of a geothermal power plant in addition to the infrastructure requirements of CCS. The viability of CO_2-Geothermal and CCS in saline aquifers will depend on the infrastructure needed to capture, transport, and inject CO_2 from point sources into reservoirs. Despite the additional costs for building and operating a CO_2-geothermal power plant, CO_2-Geothermal systems could offset the costs of CCS-Saline through the sale of the electricity generated from the geothermal energy.
机译：人类活动产生的CO_2排放量是导致气候变化的重要因素。1为了大规模减少CO_2排放量，诸如CO_2捕集与封存（CCS）之类的CO_2减排技术必须与当前的能源技术相竞争。由于捕获CO_2，通过管道网络运输CO_2并将其注入深层盐水层所需的设备，构造和能源，CCS系统的成本很高。在CO_2捕集，利用和存储（CCUS）系统中，CO_2用于生产经济可行的产品，可以降低CCS系统的成本。一种选择是将隔离的CO_2用作沉积盆地地热储层（CO_2-Geothermal）中的排热流体。与自然存在的地流体（例如盐水）相比，CO_2更有效地提取热量。除了CCS的基础设施要求之外，CO_2-地热还将需要建造一个地热发电厂。盐水层中CO_2-地热和CCS的生存能力将取决于从点源捕获，运输和注入CO_2所需的基础设施。尽管建设和运营CO_2地热发电厂会产生额外成本，但CO_2地热系统仍可以通过出售地热能发电来抵消CCS-Saline的成本。

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