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1. 发明申请

US20060000356A1 Method for removing acidic gas from raw gas, and additive having corrosion suppressing effect and defoaming effect for addition to amine solution for removing acid gas 审中-公开
标题翻译：从原料气中除去酸性气体的方法，以及添加剂除去酸性气体的胺溶液以外具有腐蚀抑制效果和消泡效果的添加剂
公开(公告)号：US20060000356A1
公开(公告)日：2006-01-05
申请号：US10531719
申请日：2003-11-26
申请人： Yasuyoshi Tomoe , Makoto Shimizu , Mitsuhiro Takarada , Teruki Ikeda , Yoshitaka Aoki
发明人： Yasuyoshi Tomoe , Makoto Shimizu , Mitsuhiro Takarada , Teruki Ikeda , Yoshitaka Aoki
IPC分类号： B01D53/14
CPC分类号： C10L3/102 , B01D19/0409 , B01D53/1456 , B01D53/1493 , C10L3/10 , C23F11/06 , B01D19/0413
摘要： A method for removing an acidic gas from a raw gas containing the acid gas by contacting the raw gas with an aqueous alkanol amine solution, characterized in that a composition comprising an organopolysiloxane containing a polyoxyalkylene group and a fine silica powder is caused to be present. In some embodiments, a composition comprising the above-mentioned organopolysiloxane and a fine silica powder is added appropriately according to the state of foaming in an acidic gas removing reaction system from the outside of the system, or use is made of an alkanol amine containing in advance a composition comprising the above-mentioned organopolysiloxane and a fine silica powder. In preferred embodiments, the fine silica powder has a specific surface area of 50 m2/g or more, and/or the composition comprising the above-mentioned organopolysiloxane and a fine silica powder is used in an amount of 0.1 to 5000 ppm relative to the alkanol amine. As a further embodiment, a method for removing an acidic gas from a raw gas by contacting the raw gas with an aqueous alkanol amine solution containing 40 mass % or more of an alkanol amine, characterized in that a composition comprising the above-mentioned organopolysiloxane and a fine silica powder is caused to be present in an amount of 0.1 to 5000 ppm relative to the alkanol amine.
摘要翻译：使原料气体与烷醇胺溶液接触，从含有酸性气体的原料气体中除去酸性气体的方法，其特征在于，含有含有聚氧化烯基的有机聚硅氧烷和二氧化硅微粉末的组合物存在。在一些实施方案中，包含上述有机聚硅氧烷和二氧化硅细粉末的组合物根据酸性气体除去反应体系中的发泡状态从系统外部适当添加，或者使用含有推进包含上述有机聚硅氧烷和二氧化硅微粉的组合物。在优选的实施方案中，二氧化硅微粉的比表面积为50m 2 / g以上，和/或包含上述有机聚硅氧烷和二氧化硅微粉的组合物的用量相对于链烷醇胺为0.1〜5000ppm。作为另一实施方案，通过使原料气体与含有40质量％以上的链烷醇胺的烷醇胺水溶液接触，从原料气体中除去酸性气体的方法，其特征在于，含有上述有机聚硅氧烷和相对于链烷醇胺，二氧化硅微粉末的存在量为0.1〜5000ppm。

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