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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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中低压条件下蛇纹石直接矿物碳酸化隔离co2的实验研究
, PP. 748-753
Keywords: 中低压,二氧化碳,直接矿物碳酸化,蛇纹石,隔离
Abstract:
？对中低压条件下蛇纹石co2直接矿物碳酸化隔离进行了一系列实验研究,考察了反应温度、反应压力、缓冲剂的加入、预先热处理、颗粒粒径及不同气氛等因素对蛇纹石矿物碳酸化吸收二氧化碳效率的影响。结果表明,在中低压条件下,蛇纹石可以通过液相直接矿物碳酸化对模拟烟气中的co2进行直接固定;随反应温度的升高、反应压力的增大,矿物碳酸化效率随之增加;对蛇纹石进行预先热处理或者在反应体系中引入nahco3缓冲剂以及减小蛇纹石矿石颗粒粒径,可以有效地提高蛇纹石矿物碳酸化隔离二氧化碳的效率。在纯co2、t=150℃、p=4mpa、颗粒粒径30μm的条件下得到最高矿物碳酸化效率为47.7%;在模拟烟气、t=150℃、p=4mpa、颗粒粒径30μm的条件下最高矿物碳酸化效率也可以达到36.3%。
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