| 环己酮氨肟化反应体系中TS-1分子筛失活原因的研究 |
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| 引用本文： | 刘银乾,李永祥,吴巍,闵恩泽. 环己酮氨肟化反应体系中TS-1分子筛失活原因的研究[J]. 石油炼制与化工, 2002, 33(5): 41-45 |
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| 作者姓名： | 刘银乾 李永祥 吴巍 闵恩泽 |
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| 作者单位： | 1. 中国石油化工股份有限公司科技开发部,北京,100029
2. 石油化工科学研究院 |
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| 基金项目： | 属国家重点基础研究发展规划(973)项目课题(G2000048005) |
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| 摘 要： | 在TS－1分子筛催化环已酮氨肟化制备已酮肟反应体系中考察了催化剂的稳定性及失活原因，对新鲜催化剂和失活催化剂进行的XRD，FT－IR，FT－Raman,ICP,TGA/DTA等一系列对比表征和初步再生试验的结果表明，TS－1分子筛在单程运转周期内失活的主要原因是沉积物堵塞了分子筛的孔道，此外还存在着骨架钛结构变化的趋势，但失活子筛的晶相结构没有遭到明显破坏。
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| 关 键 词： | 环已酮 氨肟化反应体系 TS－1分子筛 失活原因 研究 含钛杂原子分子筛 |
| 修稿时间： | 2002-01-14 |
STUDY ON DEACTIVATION BEHAVIOR OF TS-1 MOLECULAR SIEVE IN CYCLOHEXANONE AMMOXIMATION |
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| Liu Yinqian,Li Yongxiang,Wu Wei,Min Enze. STUDY ON DEACTIVATION BEHAVIOR OF TS-1 MOLECULAR SIEVE IN CYCLOHEXANONE AMMOXIMATION[J]. Petroleum Processing and Petrochemicals, 2002, 33(5): 41-45 |
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| Authors: | Liu Yinqian Li Yongxiang Wu Wei Min Enze |
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| Affiliation: | Liu Yinqian~1,Li Yongxiang~2,Wu Wei~2,Min Enze~2 |
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| Abstract: | The stability and deactivation behavior of TS-1 molecular sieve in the ammoximation of cyclohexanone to cyclohemanone oxime were investigated. Using XRD, FT-IR, FT-Raman, ICP, TEM and TGA/DTA measured the comparative characterization between the fresh and the spent catalyst, and preliminary regeneration of the spent catalyst was proceeded. The results showed that some by-products of the reaction blocking the molecular sieve channels mainly caused the catalyst deactivation in single operating cycle. Additionally, the titanium skeletal structure had some transformation trends, however, no obvious destruction of the crystal structure of the deactivated molecular sieve was found. |
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| Keywords: | titanium molecular sieve deactivation cyclohexanone |
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