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首页> 外文会议>23rd New Zealand Geothermal Workshop 2001, 2001, Auckland >FUNDAMENTAL RESEARCH FOR CO_2 INJECTION INTO GRANITE AND SANDSTONE, IN EXPERIMENTAL HOT WATER SYSTEMS
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FUNDAMENTAL RESEARCH FOR CO_2 INJECTION INTO GRANITE AND SANDSTONE, IN EXPERIMENTAL HOT WATER SYSTEMS

机译：实验热水系统中CO_2注入花岗岩和砂岩的基础研究

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摘要

Experiments were conducted using a batch type micro-autoclave, over a temperature range of 100-350℃, to understand granite and sandstone reactions in hot water, in the absence or presence of excess CO_2. Our one-week experiments show that the dissolution of granite, and deposition of secondary minerals, is enhanced by the presence of excess CO_2. Combining the results of sample weight and CO_2-gas volume change, we show CO_2 could be fixed in the rock, by deposition of secondary minerals. We suggest that it may be possible for granite or sandstone to 'capture' CO_2, and that underground disposal may be a feasible solution to reducing atmospheric emission of CO_2.
机译：使用间歇式微型高压釜在100-350℃的温度范围内进行实验，以了解在有或没有过量CO_2的情况下花岗岩和砂岩在热水中的反应。我们为期一周的实验表明，过量的CO_2的存在会促进花岗岩的溶解和次生矿物质的沉积。结合样品重量和CO_2气体体积变化的结果，我们表明CO_2可以通过次生矿物的沉积而固定在岩石中。我们建议花岗岩或砂岩可能“捕获” CO_2，并且地下处置可能是减少大气中CO_2排放的可行解决方案。

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