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高碘酸钠对杂多酸复合脱硫体系吸收-再生性能的影响
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作者 常靖 刘百军 +1 位作者 石冈 鲍晓军 《石油化工》 CAS CSCD 北大核心 2002年第11期901-904,共4页
采用电位示踪技术研究高碘酸钠对磷钼酸钠及其构成的复配脱硫体系(Na3PMo12O40-NaVO3-Na2CO3-NaCl)再生性能的影响。实验结果表明,高碘酸钠的加入提高了脱硫体系的吸收性能和再生性能。吸收及再生过程中,高碘酸钠起催化剂的作用,一方面... 采用电位示踪技术研究高碘酸钠对磷钼酸钠及其构成的复配脱硫体系(Na3PMo12O40-NaVO3-Na2CO3-NaCl)再生性能的影响。实验结果表明,高碘酸钠的加入提高了脱硫体系的吸收性能和再生性能。吸收及再生过程中,高碘酸钠起催化剂的作用,一方面氧化被还原的磷钼酸钠,一方面辅助吸收硫化氢。 展开更多
关键词 高碘酸钠 杂多酸 复合脱硫体系 吸收-再生性能 影响
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用于碳捕集的胺基两相吸收剂筛选及性能研究
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作者 张立欣 张霜霜 +3 位作者 张玉玮 陈经敏 安搏茹 张磊 《环境工程》 CAS CSCD 2024年第10期201-208,共8页
相较于传统有机胺吸收剂30%MEA,两相吸收剂在降低CO_(2)捕集能耗方面具有更为显著的发展潜力。选用具有不同氨基结构的乙醇胺(MEA)、羟乙基乙二胺(AEEA)、二乙烯三胺(DETA)和三乙烯四胺(TETA)为主吸收剂,分别与分相剂二乙氨基乙醇(DEEA... 相较于传统有机胺吸收剂30%MEA,两相吸收剂在降低CO_(2)捕集能耗方面具有更为显著的发展潜力。选用具有不同氨基结构的乙醇胺(MEA)、羟乙基乙二胺(AEEA)、二乙烯三胺(DETA)和三乙烯四胺(TETA)为主吸收剂,分别与分相剂二乙氨基乙醇(DEEA)和水,以1∶2∶1(质量比)复配构建4种两相吸收剂。对其分相性能、吸收-再生性能及黏度特性进行比较研究,发现DEEA+DETA组合为最具开发潜力的两相吸收剂,进一步对其再生能耗及循环稳定性进行深入考察。结果表明:DEEA+DETA两相吸收剂具有较大分相负荷范围和适中的黏度,其吸收负荷为3.26 mol/L,循环容量达2.52 mol/L,再生能耗低至2.55 GJ/t CO_(2),比30%MEA降低了32.9%,且循环稳定性良好。 展开更多
关键词 CO_(2)捕集 两相吸收 再生能耗 吸收-再生性能 循环性能
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Study on Absorption and Regeneration Performance of Novel Hybrid Solutions for CO_2 Capture 被引量:1
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作者 Gao Jie Yin Jun +5 位作者 Zhu Feifei Chen Xin Tong Ming Kang Wanzhong Zhou Yanbo Lu Jun 《China Petroleum Processing & Petrochemical Technology》 SCIE CAS 2016年第1期66-72,共7页
Recently, a kind of hybrid solution MEA-methanol shows a better CO_2 capture performance over aqueous MEA solution. However, the vaporization of methanol is the biggest disadvantage that hinders its application, so it... Recently, a kind of hybrid solution MEA-methanol shows a better CO_2 capture performance over aqueous MEA solution. However, the vaporization of methanol is the biggest disadvantage that hinders its application, so it is necessary to minimize the vaporization of methanol during both the absorption and regeneration processes. In this work, two kinds of hybrid solutions were studied and compared with aqueous MEA solution and MEA-methanol solution, including MEA/TEA/methanol solution and MEA/glycerol/methanol solution. The absorption property of MEA/glycerol/methanol solution is better than aqueous MEA solution within a certain period of time and the absorption property of MEA/TEA/methanol solution is too poor to be used in CO_2 capture. By increasing the concentration of TEA and decreasing the concentration of MEA, the absorption rate, CO_2 capture efficiency and absorption capacity all decreased. Upon adding glycerol, the cyclic capacity decreased and the generation temperature increased, and moreover, the density and viscosity also increased considerably. So after adding TEA and glycerol, the CO_2 capture performance of MEAmethanol solvent cannot be improved. 展开更多
关键词 CO2 capture MEA methanol glycerol hybrid solvent
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