发明名称 |
METHOD FOR PRODUCING ACRYLONITRILE |
摘要 |
The invention relates to a method for producing acrylonitrile which includes a vapor phase catalytic ammoxidation process of performing vapor phase catalytic ammoxidation by bringing a source gas containing propylene, molecular oxygen, and ammonia into contact with a fluidized bed catalyst to obtain acrylonitrile. The method is characterized in that the fluidized bed catalyst is a catalyst containing iron, antimony, and tellurium, and the vapor phase catalytic ammoxidation process is performed while maintaining an adsorbed amount of ammonia per specific surface area (m2/g) of the fluidized bed catalyst in the range of 0.01 to 0.22 μmol/m2. According to the method for producing acrylonitrile of the invention, it is possible to stably maintain a high acrylonitrile yield over a long period of time. |
申请公布号 |
US2015057463(A1) |
申请公布日期 |
2015.02.26 |
申请号 |
US201314381047 |
申请日期 |
2013.02.26 |
申请人 |
Mitsubishi Rayon Co., Ltd. |
发明人 |
Watanabe Hirokazu;Yanagita Motoo;Karasuda Takashi;Nishida Kazufumi;Miyaki Kenichi |
分类号 |
C07C253/26 |
主分类号 |
C07C253/26 |
代理机构 |
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代理人 |
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主权项 |
1. A method for producing acrylonitrile, the method comprising a vapor phase catalytic ammoxidation process of performing vapor phase catalytic ammoxidation by bringing a source gas containing propylene, molecular oxygen, and ammonia into contact with a fluidized bed catalyst to obtain acrylonitrile,
wherein the fluidized bed catalyst is a catalyst containing iron, antimony, and tellurium, and the vapor phase catalytic ammoxidation process is performed while maintaining an adsorbed amount of ammonia per specific surface area (m2/g) of the fluidized bed catalyst in the range of 0.01 to 0.22 μmol/m2. |
地址 |
Chiyoda-ku, Tokyo JP |