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2003-2020 全部
为您找到包含“金属离子”的内容共260

LIAO Junjie,Liu Yang,Bao Lei,Chang Liping,Bao Weiren

NaY and Na13X zeolites were modified by different modification manners, which are H+ modification, metal ion (copper, nickel or cerium ions) modification and H+ modification followed by metal ion modification, to prepare series of sorbents. The properties of these sorbents were measured by XRD, N2 adsorption and SEM/EDS. The desulfurization activity of these sorbents was evaluated in a model gasoline made of thiophene and cyclohexane, and the results were compared to investigate the effect of preparation methods on adsorption desulfurization behavior. The results show that H+ modification or metal ion modification could all improve the desulfurization efficiency of both NaY and Na13X zeolites, however, for Na13X, after modified by copper or nickel ions, its crystal structure was destroyed, and thus the desulfurization efficiency is much lower than before. The desulfurization activity of the sorbents prepared via H+ modification followed by metal ion modification is higher than that of sorbents prepared by single H+ modification or metal ion modification because pre-modification by H+ can increase the metal content, specific surface and pore volume of sorbent in the following metal ion modification process. Compared with Na13X, NaY is more suitable for H+ modification followed by metal ion modification. Among those prepared sorbents, the CuHY sorbent prepared via NaY modified via H+ and followed by copper ion, has the highest desulfurization efficiency at room temperature.

2016-08-12

Doctoral Program of High Education (No.20131402110010

National Natural Science Foundation of China (No.51372161

Taiyuan University of Technolgy ( No.21406151

State Key Laboratory Breeding Base of Coal Science and Technology Co-founded by Shanxi Province and the Ministry of Science and Technology, Taiyuan University of Technology, Taiyuan 030024, PR China,State Key Laboratory Breeding Base of Coal Science and Technology Co-founded by Shanxi Province and the Ministry of Science and Technology, Taiyuan University of Technology, Taiyuan 030024, PR China,State Key Laboratory Breeding Base of Coal Science and Technology Co-founded by Shanxi Province and the Ministry of Science and Technology, Taiyuan University of Technology, Taiyuan 030024, PR China,State Key Laboratory Breeding Base of Coal Science and Technology Co-founded by Shanxi Province and the Ministry of Science and Technology, Taiyuan University of Technology, Taiyuan 030024, PR China,State Key Laboratory Breeding Base of Coal Science and Technology Co-founded by Shanxi Province and the Ministry of Science and Technology, Taiyuan University of Technology, Taiyuan 030024, PR China

#Chemical Engineering#

刘贺,包小兰,吕莹,郭顺堂

2010-02-02

以琼脂糖凝胶为固相支持物,亚氨基二乙酸为螯合剂,用Cu2+、Fe3+、Zn2+和Ca2+ 4种金属离子制成琼脂凝胶金属离子亲和层析柱,并对层析柱上螯合的金属离子量以及这4种金属离子亲和层析柱对大豆肽

中国农业大学食品学院,蛋白质加工利用研究室,中国农业大学食品学院,蛋白质加工利用研究室,中国农业大学食品学院,蛋白质加工利用研究室,中国农业大学食品学院,蛋白质加工利用研究室

#食品科学技术#

范祺,程昊,方正,梁丽

2017-03-20

本文利用乳清分离蛋白稳定的水包油(O/W)型乳状液对维生素E进行包埋和保护,研究了Ca2+和Fe2+对乳状液结构以及维生素E包埋和保护的影响。结果表明,两种金属离子诱导WPI乳状液聚集,增加了WPI

国家自然科学基金(31571781

江南大学食品学院,食品科学与技术国家重点实验室,无锡 214122,江南大学食品学院,食品科学与技术国家重点实验室,无锡 214122,江南大学食品学院,食品科学与技术国家重点实验室,无锡 214122,江南大学食品学院,食品科学与技术国家重点实验室,无锡 214122

#食品科学技术#