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使用γ-MnO从地热盐中提取:图兹拉地热发电厂的一个案例研究

Seyra Toprak¹, Çınar Öncel², Sinan Yılmaz³

¹Department of Materials Science and Engineering, İzmir Institute of Technology, 35430, Gülbahçe, Urla, İzmir, Turkey.

|November 11, 2024

概括

电解二氧化 (γ-MnO2) 有效地从地热盐水中提取离子. 这种吸附剂显示出从自然来源可持续回收的承诺,即使在多次使用后也是如此.

科学领域:

材料科学材料科学材料科学
环境工程环境工程
地质化学地质化学

背景情况:

地热盐水中含有丰富的有价值元素,为资源回收提供了机会.
从地热盐水等复杂的自然系统中提取元素是具有挑战性的.
以前的实验室规模研究可能不准确地反映现实世界的表现.

研究的目的:

研究电解二氧化 (γ-MnO2) 作为从地热盐中提取的吸附剂的使用.
在现场条件下评估γ-MnO2的吸附和脱附性能.
评估γ-MnO2吸附剂的可重复使用性和效率.

主要方法:

一个小型试验反应堆部署在土耳其图兹拉地热发电厂 (TGPP) 的再注入井中.
电解性γ-MnO2被用作离子 (Li+) 吸附的吸收材料.
吸附在360K和2巴进行,在酸性溶液中进行脱吸.

主要成果:

在TGPP下,在1小时内达到最大的吸附性能.
在30毫升酸性溶液中使用10克γ-MnO2的溶液中,溶解后的平均Li+度为25mg/L.
在连续四次循环后,累积脱吸达到230 mg/L Li+.
在多次使用后,γ-MnO2吸附剂保留了大约40%的初始性能.

结论:

电解式γ-MnO2是一种有前途且具有成本效益的吸附剂,用于从地热盐水中提取.
开发的吸附/脱附过程证明了从自然,复杂的水系统中回收的实际潜力.
吸附剂的可重复使用性表明工业应用的经济可行性.

关键词:

吸附技术是一种吸附技术.电解二氧化电解二氧化地热盐水地热盐水提取的提取方法

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